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ALCOHOL USE DISORDER
MODERATOR: DR. ASHUTOSH GUPTA
PRESENTATOR : DR. RAMASHANKAR
HISTORICAL ASPECTS
 One of the most commonly used chemical substances for intoxication by
humans in history.
 Word 'alcohol' originates from the Arabian term 'al-kuhul', meaning "the
kohl" a powder for the eyes, which later came to mean "finely divided spirit".
 No one knows when beverage alcohol was first used
 The discovery of late Stone Age beer jugs has established the fact that
intentionally fermented beverages existed at least as early as 10,000 B.C
 In INDIA alcoholic beverages appeared in between 3000 BC - 2000 BC
EPIDEMIOLOGY
 Alcohol is estimated to cause about 20-30% of oesophageal cancer, liver
cancer, and cirrhosis of the liver, homicide, epilepsy, and motor vehicle
accidents.
 Worldwide, alcohol causes 1.8 million deaths each year
 In India male : female ratio is 6:1
 nearly 30% of adult men and <5% of women consume alcohol.
TYPES OF ALCOHOLIC BEVERAGES
 SPIRITS
GIN - a colourless alcoholic beverage made by distilling or redistilling rye or
other grain spirits
VODKA - originally distilled from fermented wheat mash but now also made
from a mash of rye, corn, or potatoes.
RUM - distilled from cane juice, or from the scrumming of the boiled juice.
WHISKEY - distilled from grain, potatoes, etc.
BRANDY - an alcoholic liquor distilled from wine or fermented fruit juice.
TEQUILA - an alcoholic liquor distilled from the fermented juice of the Central
American century plant Agave tequilana.
 LIQUEURS (FLAVORED SPIRITS): Liqueurs are flavoured spirits prepared by
infusing certain woods, fruits, or flowers, in either water or alcohol, and
adding sugar, etc.
 WINES & CHAMPAGNE
RED WINE - wine having a red colour derived from skins of dark-coloured
grapes.
WHITE WINE - any wine of a clear, transparent colour
CHAMPAGNE - a sparkling white wine made from a blend of grapes
 BEER - mainly derived from cereal grains—most commonly malted barley,
although wheat, maize (corn), and rice are widely used.
ALCOHOL CONTENT OF DIFFERENT BEVERAGES
Expressed as `UNIT’. 1unit = 8grams or 10 ml of alcohol.
Standard Drink = ½ bottle of Standard Beer = ¼ bottle of Strong Beer = 1 peg (30 ml.)Spirits =
1 glass (125 ml.) of table wine = 1 glass (60 ml.) fortified wine
BEVERAGE ALCOHOL CONTENT(%) UNITS OF absolute
ALCOHOL (gm/100ml)
Ordinary Beer 3-4% 2.3-3.1
Strong Beer 8-11% 6.2-8.6
Table wine 5-13% 3.9-10
Fortified wines
(sherry, pot, vermouth)
14-20% 10.9-15.
Spirits(whisky, gin, brandy,
vodka)
35-50% 25.7
ETIOLOGY
 Various theories to explain alcoholism-
1. Psychological theories
2. Psychodyanamic theories
3. Behavioral theories
4. Sociocultural theories
5. Genetic theories
6. Childhood history
ETIOLOGY
Psychological Theories
 Alcohol reduces tension, increase feelings of power, decrease the effect of
psychological pain
 Alcohol decreases nervousness, increased feeling of well being, help them to
cope with day to day stresses of life.
Psychodynamic Theories
 Due to anxiety lowering effects of alcohol, people may use this to help them
deal with self-punitive harsh superegoes and to decrease unconscious stress
levels.
 Fixation at oral stage of development may also explain use of alcohol to
relieve frustations by taking the substance by mouth.
Behavioral Theories
 Expectations about the rewarding effects of alcohol, and subsequent
reinforcement after alcohol intake all contribute to decision to drink again after
first drink..
Sociocultural Theories
 Cultural attitudes toward drinking, and personal responsibilities for
consequences are important contributors to alcohol use..
Childhood history
 Childhood history of ADHD, conduct disorder, antisocial personality disorder
increases a child’s risk for an alcohol related disorder as an adult..
Genetic Theories
 Close family members have a fourfold increased risk.
 The identical twin of an alcoholic person is at higher risk than is a fraternal
twin.
 Adopted-away children of alcoholic people have a fourfold increased risk.
EFFECTS OF ALCOHOL ON BODY
1) Absorption- 10% from stomach,
90%-small intestine(proximal).
2) Peak blood conc.- In 30-90 minutes.
3) Metabolism- 90% in liver
(by ADH and ALDH enzymes)
-10% ex unchanged by kidney and lungs
The rate of oxidation by liver is constant and independent on the body’s energy
requirements.
Rapid drinking reduces the time to peak concentration, slower drinking increases
it.
ACETIC ACID
ACETALDEHYD
E
ALCOHOL
Disulfiram
reaction.
Toxic
Causes
Histamine
release
ALDH
Non- toxic
 Some study suggest that women have lower concentration of ADH in blood
than men ; due to this women become more intoxicated than man after
drinking same amount of alcohol.
…EFFECT OF ALCOHOL ON BODY
EFFECT ON BRAIN
(Pathophysiology)-
 Dopamine increase in limbic system- pleasure
(alcohol acutely increase dopamine levels in brain)
 Serotonin- related to amount of intake
 GABAA receptors
 NMDA receptors
 Alcohol enhances the effect of GABA on GABA-A neuro-receptors, resulting in
decreased overall brain excitability. Chronic exposure to alcohol results in a
compensatory decrease of GABA-A neuro-receptor response to GABA,
evidenced by increasing tolerance of the effects of alcohol.
 Alcohol inhibits NMDA neuro-receptors, and chronic alcohol exposure results
in up-regulation of these receptors.
 Abrupt cessation of alcohol exposure results in brain hyper excitability,
because receptors previously inhibited by alcohol are no longer inhibited.
…EFFECT OF ALCOHOL ON BODY
1) EFFECT ON SLEEP-
- decreased sleep latency, but
- decrease in REM and NREM stage 4
- more sleep fragmentation, and longer episodes of awakening
(thus overall harmful effect on sleep)
2) TOLERANCE-
With repeated administration of alcohol, larger and larger doses are required
to produce the desired effect.
3) CRAVING-
The state of motivation to seek out alcohol.
4) BLACKOUTS-
Blackout indicates a memory impairment (anterograde amnesia) for the period
when
the person was drinking heavily and was awake
5)PERIPHERAL NEUROPATHY-
- tingling and numbness in hands & feet
- develops in about 10% alcoholics
6) CEREBELLAR DEGENERATION
7) CENTRAL PONTINE MYELINOSIS-
(present as quadriplegia, lethargy, and cognitive impairment )
8) MARCHIAFAVA- BIGNAMI SYNDROME (thinning of the corpus
callosum along with a change in consciousness, ataxia, and possible dementia)
9) Pathological intoxication-
- An extraordinary severe response to small amounts of alcohol
- Marked by apparently senseless violent behaviour, usually followed by sleep,
exhaustion & ‘amnesia’ for the episode.
GIT-
- Gatritis, fatty liver, alcoholic cirrhosis, pancreatitis.
CVS-
- Hypertension and increased risk of Stroke.
(Paradoxically, moderate drinkers i.e. about 7-10 units/week have lower risk of
coronary artery disease than non-drinkers!!)
FETAL ALCOHOL SYNDROME-
- Seen in about 5% children born to heavy-drinker mothers.
- Severe mental retardation, microcephaly, facial defects, asd etc.
- Even fetal death, and spontaneous abortion.
F10.0 ACUTE INTOXICATION
A transient syndrome
-due to recent substance ingestion
-that produces clinically significant psychological and physical impairment.
Changes are reversible upon elimination of substance from the body.
Signs of alcohol intoxication:
 Slurred speech, dizziness, incoordination, unsteady gait, nystagmus,
impairments in attention or memory, stupor or coma, double vision.
 BINGE DRINKING The National Institute on Alcohol Abuse and Alcoholism
defines binge drinking as a pattern of drinking that brings a person's blood
alcohol concentration (BAC) to 0.08 grams percent or above. This typically
happens when men consume 5 or more drinks, and when women consume 4
or more drinks, in about 2 hours.
LEVEL LIKELY IMPAIRMENT
20-30 mg/dl Slowed motor performance, decreased thinking
ability.
30-80 mg/dl Increase in motor & cognitive problems.
80-200 mg/dl
Increase in incoordination and judgement errors.
Lability of mood, Cognitive deterioration
200-300 mg/dl
Marked slurring of speech, Nystagmus, Blackouts
>300 mg/dl Impairment in vital signs, possibly Death!.
MX OF ALCOHOL INTOXICATION
 Acute effect – generally subside with time and do not warrant any
treatment.
 General measure like reassurance, and maintained in a safe and monitored
environment to decrease external stimulation and to provide orientation as
necessary
 Maintain adequate nutrition and hydration
 Monitor withdrawal state.
F10.1 ALCOHOL HARMFUL USE
 A pattern of psychoactive substance use
-that is causing damage to health,
-the damage may be physical or mental.
Diagnostic guidelines
 Actual damage to physical or mental health.
 Acute intoxication itself is not a sufficient evidence of the damage to health.
 Harmful use should NOT be diagnosed if dependence syndrome, a psychotic
disorder (F10.5), or another specific form of alcohol-related disorder is present.
F10.2 DEPENDENCE SYNDROME
 A cluster of physiological, behavioural, and cognitive phenomena
-in which the use of a substance takes on a much higher priority for an
individual than other behaviours that once had greater value.
DIAGNOSTIC GUIDELINES FOR DEPENDENCE SYNDROME-
Three or more of the following is necessary to diagnosis in previous year.
a) Strong desire.
b) Progressive neglect of alternative pleasures or interests.
c) Evidence of tolerance.
d) Signs of withdrawal on attempted abstinence
e) Loss of control of consumption.
f) Continued drug use despite negative consequences.
FIVE-CHARACTER CODES FOR DEPENDENCE
 F10.20 Currently abstinent
 F10.21 Currently abstinent, but in a protected environment
 F10.22 Currently on a clinically supervised maintenance or replacement regime
[controlled dependence]
 F10.23 Currently abstinent, but receiving treatment with aversive or blocking
drugs (e.g. naltrexone or disulfiram)
 F10.24 Currently using the substance [active dependence]
 F10.25 Continuous use
 F10.26 Episodic use [dipsomania]
SUBTYPES OF ALCOHOL DEPENDENCE
Type A alcohol dependence
 Late onset
 Few childhood risk factors
 Mild dependence (with few alcohol related problems and little
psychopathology)
Type B alcohol dependence
 Early onset
 Many childhood risk factors
 Severe dependence( with a strong family history and much psychopathology)
Some more subtypes….
Gamma alcohol dependence
 Represents alc. Dep. In those who are active in Alcoholic Anonyms.
 These persons are unable to stop drinking once they start, but if drinking is
terminated (due to ill health or lack of money), they can abstain quite well.. Only
psychological dependence
Delta alcohol dependence
 Include those who must drink a certain amount each day, but are unaware of a
lack of control
F10.3 ALCOHOL WITHDRAWAL
“A group of symptoms and signs which occur on cessation or reduction of use
of a psychoactive substance,
-that has been taken repeatedly, usually for a prolonged period and/ or in
high doses.”
 It can be-
 Uncomplicated- ocurring in 6-48 hrs and abates after 2-5 days.
 Complicted- with seizures, delirum.
DIAGNOSIS OF ALC. WITHDRAWAL
A) Cessation of (or reduction in) alcohol use.
B) Two (or more) of the following, developing within several hours to a few days
after Criterion A:
(1) Autonomic hyperactivity
(2) Increased hand tremor
(3) Insomnia
(4) Nausea or vomiting
C) Social & occupational functioning impairment.
D) Not due to a general medical condition or mental disorder.
(5) Transient hallucinations or illusions
(6) Psychomotor agitation
(7) Anxiety
(8) GTCS
ALCOHOL WITHDRAWAL SYMPTOMS
Time withdrawal symptoms
3 to 12 hours SOMATIC SYMPTOM ,Insomnia, tremulousness, mild anxiety,
gastrointestinal upset, headache, diaphoresis, palpitations,
anorexia
12 to 24 hours Withdrawal seizures: generalized tonic-clonic seizures
>72 hours Alcohol withdrawal delirium (delirium tremens): hallucinations
(predominately visual),
ALCOHOL WITHDRAWAL SEIZURES
 5-15% cases of alcohol withdrawal
 Within 24-48hrs but may up to 7days
 Tonic-clonic in nature
 Usually one or two episodes
 30% of pts develop delirium
 Give IV diazepam until seizure activity ceases
 5-10mg IV initially, repeat if necessary every 15min up to a maximum dose of
100mg
 Avoid anticonvulsant unless history of primary SD
F10.4 DELIRIUM TREMENS
 Medical Emergency
 < 5% of Alcohol Withdrawal syndrome
 Usually begins in 48-96hrs.
 Last for 1-5 days
 May be associated with seizure(F10.41)
 In untreated cases mortality is up to 20%.
Triad of symptoms includes-
- Clouding of consciousness, Hallucinations and Illusions, Marked tremors.
 Autonomic hyperactivity, dehydration, electrolyte imbalance.
 Delusions may be present
 May lead to circulatory collapse, coma & death
MANAGEMENT OF DELIRIUM TREMENS
 IV Fluid for hydration.
 Mainstay are BZDS-
-Lorazepam 2mg or Diazepam 10mg IV/IM.
-Repeated doses till symptoms clear
-Doses should be tapered in 5-7days
 Thiamine 200-300mg IM daily for 3-5 days.
Oral Thiamine three times a day.
 Monitor vitals 4hrly, Closely observe for focal neurological deficit
 Pt should be on high calorie, high carbohydrate diet.
F10.5 PSYCHOTIC DISORDERS
 Occur during or immediately after alcohol use and are characterized by-
.Vivid hallucinations (mainly auditory),
.Delusions or ideas of reference(morbid jealosy),
.Psychomotor disturbances (excitement or stupor), .Abnormal affect.
 Sensorium is usually clear but some clouding of consciousness may be
present.
 The disorder typically resolves in 1-6 months.
DIAGNOSTIC GUIDELINES..
 A psychotic disorder occurring during or immediately after drug use (usually
within 48 hours)
- provided that it is not a manifestation of withdrawal state with delirium
and
- should NOT be of late onset.
 Late-onset psychotic disorders (with onset more than 2 weeks after substance
use) should be coded as F10.75.
F10.6 AMNESTIC SYNDROMES
 A syndrome associated with
 chronic prominent impairment of RECENT memory;
 remote memory is sometimes impaired,
 while immediate recall is preserved.
Diagnostic guidelines-
1. Impairment of RECENT memory(learning of new material) ; Disturbance of time
sense.
2. Preserved immediate recall;
3. Preserved consciousness; and absence of generalised cognitive impairment.
4. Evidence of chronic (high-dose) use of alcohol.
WERNICKE ENCEPHALOPATHY
 Progressive neurological condition caused by THIAMINE deficiency
 Completely reversible
 Global confusion
 Opthalmoplegia - Horizontal nystagmus, 6th n. palsy
 Ataxia, Vestibular dysfunction
 Rapidly reversible with large parenteral doses 200-300mg of Thiamine. Then
100mg orally BD or TDS for 1-2 wk.
 In pts. receiving iv fluids, include 100mg of thiamine in each liter of iv glucose
solution.
KORSAKOFF’S SYNDROME
 Chronic condition
 Reversible in only 20% of cases
 Impaired Recent memory and anterograde amnesia in an alert and
responsive pt.
 Confabulation +/-
 In most cases, the level of recent memory loss is out of proportion to the
global level of cognitive impairment.
 Thiamine100mg orally BD or TDS for 3 to 12 months.
F10.7 RESIDUAL & LATE ONSET PSYCHOTIC DISORDER
 A disorder in which alcohol-induced changes of cognition, affect, personality, or behaviour persist beyond the
period during which a direct alcohol-related effect might be assumed to be operating.
 Further subdivided by the following five-character codes:-
 F10.70 Flashbacks
 F10.71 Personality or behaviour disorder
 F10.72 Residual affective disorder
 F10.73 Dementia
 F10.74 Other persisting cognitive impairment
 F10.75 Late-onset psychotic disorder
ALCOHOL INDUCED PERSISTING DEMENTIA
 Global decreases in intellectual functioning, cognitive abilities, and memory.
 But recent memory difficulties are consistent with the global cognitive
impairment.
(an observation that distinguishes the syndrome from alcohol-induced
persisting amnestic disorder.)
 50-70% show increased size of the brain ventricles and atrophy of frontal lobe.
(these changes appear to be partially or completely reversible.)
Brain functioning improves with abstinence,
but 1/2 of all affected patients have long-term and even permanent memory
and thinking disabilities.
ALCOHOL INDUCED ANXIETY DISORDERS
 Only two anxiety disorders may be more closely tied to alcoholism: panic
disorder & social phobia.
 During the first 4 to 6 weeks of abstinence
 Disappear with time alone.
ALCOHOL INDUCED SEXUAL DYSFUNCTION
 Alcohol in small doses appears to enhance sexual receptivity in women
and increase arousal to erotic stimuli in men.
 Heavy continued drinking may cause significant sexual impairment:-
- impaired desire
- impaired arousal
- impaired orgasm
- sexual pain.
 Symptoms usually subside after 3-4 weeks of alcohol abstinence.
MX OF DEPENDENCE
Step 1) Detection of alcohol
dependence
Step 2)Intervention
Step 3) Detoxification
(or withdrawal from alcohol)
Step 4) Relapse prevention
(or maitenence of abstinence)
& Rehabilitation.
BY-
1- SCREENING
2- HISTORY TAKING
3- LABORATORY DIAGNOSIS
SCREENING-
1. CAGE questionnaire
2. AUDIT questionnaire
 (A) DETECTION OF ALCOHOL MISUSE
CAGE QUESTIONNAIRE
 Consist of 4 questions-
1) Have you ever felt to Cut down on your drinking?
2) Have people Annoyed you by criticizing your drinking?
3) Have you ever felt Guilty about your drinking?
4) Have you ever had a morning drink (Eye opener) to get rid of hangover?
-> 2 or more yes= alcohol misuse.
-> Overall sensitivity is Good but modest specifity.
AUDIT QUESTIONNAIRE
 Ten questions. 5 point scale.
 Designed at the request of WHO.
 Scores are given for each answer.
Score Intervention
 8-15 - brief intervention based on risk factors.
 16-19 - brief intervention, regular monitoring.
 20-40 - diagnostic assess detoxification, and other treatments.
LABORATORY DIAGNOSIS
Parameter Normal value Value in chronic alcoholics
Serum level of γ-
transferase (GGT)
Men 4-25 U/L
Women 7-40 U/L
>35 U/L
Mean corpuscular
volume(MCV)
80-98μm3 >91 µm3
Carbohydrate-deficient
transferrin
<60mg/l >3% of total transferrin
concentration
AST & ALT <45 U/L > 45.0 IU/L AST:ALT, 2:1
Carbohydrate def. transferrin is a variant of serum protein that transports iron, and increased
in heavy drinking…more specific than GGT.
(B) INTERVENTION
 Pharmacotherapy
 Psychosocial interventions
(C) DETOXIFICATION
 i.e Withdrawal of patient from alcohol.
 Step 1) Thorough Physical examination
(e.g. liver failure, gi bleed, arrhythmia, glucose or electrolyte imbalance;
any combined drug abuse)
 Step 2) Rest & Adequate nutrition
(Vit-B complex specially Thiamine)
 Step 3) BZD & other symptomatic pharmacotherapy
PHARMACOTHERAPY
1) Benzodiazepines-
 -drug of choice
 -decreases s/s of withdrawal & prevents seizures & DT also
 -long acting(chlordiazepoxide,diazepam) are preferred because of low
dependence forming potential
 (dose can be adjusted depending on s/s)
Oxazepam/Lorazepam/ for elderly or hepatic impairment pts.
Fixed dose reduction regime:
 Used in non-specialist community setting.
 For chlordiazepoxide 1 mg /unit qid. Then tapered in 5-7 days
Symptom- triggering regimen:
 used in presence of specialist. Chlordiazepoxide 20-30 mg hourly as needed.
Front -loading regimens:
 started with initial loading dose of Chlordiazepoxide 100 mg followed by 50-
100 mg every 4-6 hrly until light sedation is achieved.
…PHARMACOTHERAPY
2) Thiamine
 Prevention & treatment of Wernicke’s enceph & Korsakoff’s psychosis.
 No impact on s/s of withdrawal or seizures or DT.
 Thiamine- 100 to 300mg im or orally daily.
 for at least 7 days
(..upto 1-2 wk in WE & upto 3-12 months in KP )
 Thiamine should always precede glucose administration
OTHER DRUGS& ADJUNCTIVE THERAPIES
Sympatholytics-
-decreases autonomic hyperactivity in withdrawal.
-Clonidine(α2 agonist), Propanolol(β-blocker) but these are not better than
benzodiazepine.
Barbiturates(Phenobarbital)
-for withdrawal in pregnant women
-lack of sufficient evidence
KINDLING: the "kindling" phenomenon; the term refers to long-term changes
that occur in neurons after repeated detoxifications.
 Recurrent detoxifications are postulated to increase obsessive thoughts or
alcohol craving
(D)MAINTAINING ABSTINENCE & REHABILITAION
DISULFIRAM ( ANTABUSE)
 Irreversible Inhibits Aldehyde dehydogenase(ALDH), so acetaldehyde
accumulates
 Leads to unpleasant physical effect like.. Flushing, weakness, nausea,
tachycardia on taking alcohol
 Thus acts as aversive Rx discouraging impulsive alcohol use
 Before starting disulfiram pt. should be abstinent from alcohol for 24 hours
 Disulfiram reactions can occur upto 2 weeks after last dose
 No tolerance with continous Rx of disulfiram
 Dose- 800 mg first dose then 250 mg/day (100-500 mg/day)
 C/I – heart failure, CAD, HTN, pregnancy, psychosis
 High risk of serious S/E so generally not preferred
 Precautions
 All the patients who are prescribed disulfiram should be fully informed of the
disulfiram–ethanol reaction and cautioned against the possible consequences
of taking alcohol
 strongly advised not to use any alcohol-containing preparations (e.g., certain
cough syrups, sauces, vinegar, tonics, foods prepared with wine), avoid the
use of aftershave lotions and back rubs containing alcohol.
 patients should be advised to obtain and carry an identification card
describing the symptoms of disulfiram–alcohol reaction and containing
contact information in cases of emergency. Disulfiram should not be co-
administered with paraldehyde or metronidazole, amitriptyline, warfarin,
phenytoin, isoniazid, rifampicin, theophylline, anta-acid (base – digene)
syrups..
 Adverse Reactions
 Drowsiness, headache, fatigue, allergic dermatitis, stomach upset, dizziness,
acneform eruption, halitosis, and impotence.
 Metallic or garlic-like aftertaste has been reported during the first 2 weeks of
therapy. disappear spontaneously or by reducing dosage.
 Sensorimotor peripheral neuropathy, frequently associated with combined
treatment with metronidazole or isoniazid
 More serious but rare side effects including jaundice, hepatitis, hepatic
necrosis, and altered liver function tests as well as mood lability and mental
status changes (e.g., psychotic or manic symptoms)
 Drug interactions
 Concomitant ingestion of antacids containing divalent cations as well as large
doses of ferrous salts may reduce absorption of disulfiram.
 With disulphiram elevated phenytoin plasma level and possibly lead to
phenytoin toxicity.
 may prolong prothrombin time, which may potentially require adjustments of
the dose of the oral anticoagulants (e.g., warfarin )
 Co-administration with ISONIAZID may cause ataxia and mental status change .
 Disulfiram can differentially potentiate and prolong benzodiazepines'
suppressing effect on the central nervous system
 Disulfiram blocks the oxidation and renal excretion of rifampicin.
ACAMPROSATE
 Calcium acetyl homotaurinate
 Decreases the glutamenergic excitatory activity (NMDA) & Increases GABA
activity.
 Supresses the urge to drink
 Abstinence rates appear to be Doubled
 S/E – diarrhoea, skin rashes, decreased libido, anxiety, depression
 C/I – severe renal impairment (eliminated completely by kidney)
Dose- 333mg 2TDS for > 60 kg wt and 2 BD if wt is < 60 kg
,before meal (as food interferes with absorption)
NALTEXONE
 Non selective opioid antagonist – blocks the reinforcing and rewarding effects
of alcohol.
 By decreasing dopaminergic activity after consumption of alcohol.
 Reduced Craving(anti-craving) and reduced rate of relapse
 S/E- nausea, constipation, anxiety, fatigue
 C/I - in pt. taking opioids, hepatic failure
 Dose- 50mg daily
 Injectable preparation for poor compliance (190/380 mg/ month) , not
approved in India.
BACLOFEN
 GABA-B agonist
 Primarily used for the treatment of spastic movement disorders.
 In 2012, Baclofen was approved for use in the treatment of alcoholism
 Shown to enhance abstinence, reduce drinking quantity, reduce craving, and
reduce anxiety in alcohol-dependent individuals.
 Dose- 10-20mg tds/day
PSYCHOSOCIAL INTERVENTIONS
GOALS:
 Enhance efficacy of Pharmacotherapy
 Achieving sustained drug free status
 Change in life style and
 Improve quality of life
MOTIVATION ENHANCEMENT THERAPY
 Maximize patient's intrinsic desire to change substance use using motivational
interviewing techniques
 Empathic, non-judgemental and supportive approach to examine patient's
ambivalence about changing substance use behaviours
 BRIEF INTERVENTIONS :Also used for motivation enhancement .Consists of
FRAMES: Feedback, Personal Responsibility, Advice, Menu , Empathy and Self
efficacy. Lesser time and carried out in primary health care setting, cost effective
 COGNITIVE BEHAVIOUR THERAPY :Based on social learning theories aimed at
improving self control and social skills. Along with medications they have found
to be effective in relapse prevention & decrease in alcohol use
 BEHAVIOURAL THERAPIES: Based on learning theories and positive
reinforcements for target behaviours Community reinforcement approach is
effective
 GROUP THERAPIES :Helps in making efficient use of therapist time. Encourage
people to discuss problems and reduction in stigma
 FAMILY THERAPY
Alcohol use disorder

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Alcohol use disorder

  • 1. ALCOHOL USE DISORDER MODERATOR: DR. ASHUTOSH GUPTA PRESENTATOR : DR. RAMASHANKAR
  • 2. HISTORICAL ASPECTS  One of the most commonly used chemical substances for intoxication by humans in history.  Word 'alcohol' originates from the Arabian term 'al-kuhul', meaning "the kohl" a powder for the eyes, which later came to mean "finely divided spirit".  No one knows when beverage alcohol was first used  The discovery of late Stone Age beer jugs has established the fact that intentionally fermented beverages existed at least as early as 10,000 B.C  In INDIA alcoholic beverages appeared in between 3000 BC - 2000 BC
  • 3. EPIDEMIOLOGY  Alcohol is estimated to cause about 20-30% of oesophageal cancer, liver cancer, and cirrhosis of the liver, homicide, epilepsy, and motor vehicle accidents.  Worldwide, alcohol causes 1.8 million deaths each year  In India male : female ratio is 6:1  nearly 30% of adult men and <5% of women consume alcohol.
  • 4. TYPES OF ALCOHOLIC BEVERAGES  SPIRITS GIN - a colourless alcoholic beverage made by distilling or redistilling rye or other grain spirits VODKA - originally distilled from fermented wheat mash but now also made from a mash of rye, corn, or potatoes. RUM - distilled from cane juice, or from the scrumming of the boiled juice. WHISKEY - distilled from grain, potatoes, etc. BRANDY - an alcoholic liquor distilled from wine or fermented fruit juice. TEQUILA - an alcoholic liquor distilled from the fermented juice of the Central American century plant Agave tequilana.
  • 5.  LIQUEURS (FLAVORED SPIRITS): Liqueurs are flavoured spirits prepared by infusing certain woods, fruits, or flowers, in either water or alcohol, and adding sugar, etc.  WINES & CHAMPAGNE RED WINE - wine having a red colour derived from skins of dark-coloured grapes. WHITE WINE - any wine of a clear, transparent colour CHAMPAGNE - a sparkling white wine made from a blend of grapes  BEER - mainly derived from cereal grains—most commonly malted barley, although wheat, maize (corn), and rice are widely used.
  • 6. ALCOHOL CONTENT OF DIFFERENT BEVERAGES Expressed as `UNIT’. 1unit = 8grams or 10 ml of alcohol. Standard Drink = ½ bottle of Standard Beer = ¼ bottle of Strong Beer = 1 peg (30 ml.)Spirits = 1 glass (125 ml.) of table wine = 1 glass (60 ml.) fortified wine BEVERAGE ALCOHOL CONTENT(%) UNITS OF absolute ALCOHOL (gm/100ml) Ordinary Beer 3-4% 2.3-3.1 Strong Beer 8-11% 6.2-8.6 Table wine 5-13% 3.9-10 Fortified wines (sherry, pot, vermouth) 14-20% 10.9-15. Spirits(whisky, gin, brandy, vodka) 35-50% 25.7
  • 7. ETIOLOGY  Various theories to explain alcoholism- 1. Psychological theories 2. Psychodyanamic theories 3. Behavioral theories 4. Sociocultural theories 5. Genetic theories 6. Childhood history
  • 8. ETIOLOGY Psychological Theories  Alcohol reduces tension, increase feelings of power, decrease the effect of psychological pain  Alcohol decreases nervousness, increased feeling of well being, help them to cope with day to day stresses of life. Psychodynamic Theories  Due to anxiety lowering effects of alcohol, people may use this to help them deal with self-punitive harsh superegoes and to decrease unconscious stress levels.  Fixation at oral stage of development may also explain use of alcohol to relieve frustations by taking the substance by mouth.
  • 9. Behavioral Theories  Expectations about the rewarding effects of alcohol, and subsequent reinforcement after alcohol intake all contribute to decision to drink again after first drink.. Sociocultural Theories  Cultural attitudes toward drinking, and personal responsibilities for consequences are important contributors to alcohol use.. Childhood history  Childhood history of ADHD, conduct disorder, antisocial personality disorder increases a child’s risk for an alcohol related disorder as an adult..
  • 10. Genetic Theories  Close family members have a fourfold increased risk.  The identical twin of an alcoholic person is at higher risk than is a fraternal twin.  Adopted-away children of alcoholic people have a fourfold increased risk.
  • 11. EFFECTS OF ALCOHOL ON BODY 1) Absorption- 10% from stomach, 90%-small intestine(proximal). 2) Peak blood conc.- In 30-90 minutes. 3) Metabolism- 90% in liver (by ADH and ALDH enzymes) -10% ex unchanged by kidney and lungs The rate of oxidation by liver is constant and independent on the body’s energy requirements. Rapid drinking reduces the time to peak concentration, slower drinking increases it.
  • 12. ACETIC ACID ACETALDEHYD E ALCOHOL Disulfiram reaction. Toxic Causes Histamine release ALDH Non- toxic  Some study suggest that women have lower concentration of ADH in blood than men ; due to this women become more intoxicated than man after drinking same amount of alcohol.
  • 13. …EFFECT OF ALCOHOL ON BODY EFFECT ON BRAIN (Pathophysiology)-  Dopamine increase in limbic system- pleasure (alcohol acutely increase dopamine levels in brain)  Serotonin- related to amount of intake  GABAA receptors  NMDA receptors
  • 14.  Alcohol enhances the effect of GABA on GABA-A neuro-receptors, resulting in decreased overall brain excitability. Chronic exposure to alcohol results in a compensatory decrease of GABA-A neuro-receptor response to GABA, evidenced by increasing tolerance of the effects of alcohol.  Alcohol inhibits NMDA neuro-receptors, and chronic alcohol exposure results in up-regulation of these receptors.  Abrupt cessation of alcohol exposure results in brain hyper excitability, because receptors previously inhibited by alcohol are no longer inhibited.
  • 15. …EFFECT OF ALCOHOL ON BODY 1) EFFECT ON SLEEP- - decreased sleep latency, but - decrease in REM and NREM stage 4 - more sleep fragmentation, and longer episodes of awakening (thus overall harmful effect on sleep) 2) TOLERANCE- With repeated administration of alcohol, larger and larger doses are required to produce the desired effect. 3) CRAVING- The state of motivation to seek out alcohol.
  • 16. 4) BLACKOUTS- Blackout indicates a memory impairment (anterograde amnesia) for the period when the person was drinking heavily and was awake 5)PERIPHERAL NEUROPATHY- - tingling and numbness in hands & feet - develops in about 10% alcoholics 6) CEREBELLAR DEGENERATION 7) CENTRAL PONTINE MYELINOSIS- (present as quadriplegia, lethargy, and cognitive impairment )
  • 17. 8) MARCHIAFAVA- BIGNAMI SYNDROME (thinning of the corpus callosum along with a change in consciousness, ataxia, and possible dementia) 9) Pathological intoxication- - An extraordinary severe response to small amounts of alcohol - Marked by apparently senseless violent behaviour, usually followed by sleep, exhaustion & ‘amnesia’ for the episode.
  • 18. GIT- - Gatritis, fatty liver, alcoholic cirrhosis, pancreatitis. CVS- - Hypertension and increased risk of Stroke. (Paradoxically, moderate drinkers i.e. about 7-10 units/week have lower risk of coronary artery disease than non-drinkers!!) FETAL ALCOHOL SYNDROME- - Seen in about 5% children born to heavy-drinker mothers. - Severe mental retardation, microcephaly, facial defects, asd etc. - Even fetal death, and spontaneous abortion.
  • 19. F10.0 ACUTE INTOXICATION A transient syndrome -due to recent substance ingestion -that produces clinically significant psychological and physical impairment. Changes are reversible upon elimination of substance from the body. Signs of alcohol intoxication:  Slurred speech, dizziness, incoordination, unsteady gait, nystagmus, impairments in attention or memory, stupor or coma, double vision.  BINGE DRINKING The National Institute on Alcohol Abuse and Alcoholism defines binge drinking as a pattern of drinking that brings a person's blood alcohol concentration (BAC) to 0.08 grams percent or above. This typically happens when men consume 5 or more drinks, and when women consume 4 or more drinks, in about 2 hours.
  • 20. LEVEL LIKELY IMPAIRMENT 20-30 mg/dl Slowed motor performance, decreased thinking ability. 30-80 mg/dl Increase in motor & cognitive problems. 80-200 mg/dl Increase in incoordination and judgement errors. Lability of mood, Cognitive deterioration 200-300 mg/dl Marked slurring of speech, Nystagmus, Blackouts >300 mg/dl Impairment in vital signs, possibly Death!.
  • 21. MX OF ALCOHOL INTOXICATION  Acute effect – generally subside with time and do not warrant any treatment.  General measure like reassurance, and maintained in a safe and monitored environment to decrease external stimulation and to provide orientation as necessary  Maintain adequate nutrition and hydration  Monitor withdrawal state.
  • 22. F10.1 ALCOHOL HARMFUL USE  A pattern of psychoactive substance use -that is causing damage to health, -the damage may be physical or mental. Diagnostic guidelines  Actual damage to physical or mental health.  Acute intoxication itself is not a sufficient evidence of the damage to health.  Harmful use should NOT be diagnosed if dependence syndrome, a psychotic disorder (F10.5), or another specific form of alcohol-related disorder is present.
  • 23. F10.2 DEPENDENCE SYNDROME  A cluster of physiological, behavioural, and cognitive phenomena -in which the use of a substance takes on a much higher priority for an individual than other behaviours that once had greater value.
  • 24. DIAGNOSTIC GUIDELINES FOR DEPENDENCE SYNDROME- Three or more of the following is necessary to diagnosis in previous year. a) Strong desire. b) Progressive neglect of alternative pleasures or interests. c) Evidence of tolerance. d) Signs of withdrawal on attempted abstinence e) Loss of control of consumption. f) Continued drug use despite negative consequences.
  • 25. FIVE-CHARACTER CODES FOR DEPENDENCE  F10.20 Currently abstinent  F10.21 Currently abstinent, but in a protected environment  F10.22 Currently on a clinically supervised maintenance or replacement regime [controlled dependence]  F10.23 Currently abstinent, but receiving treatment with aversive or blocking drugs (e.g. naltrexone or disulfiram)  F10.24 Currently using the substance [active dependence]  F10.25 Continuous use  F10.26 Episodic use [dipsomania]
  • 26. SUBTYPES OF ALCOHOL DEPENDENCE Type A alcohol dependence  Late onset  Few childhood risk factors  Mild dependence (with few alcohol related problems and little psychopathology) Type B alcohol dependence  Early onset  Many childhood risk factors  Severe dependence( with a strong family history and much psychopathology)
  • 27. Some more subtypes…. Gamma alcohol dependence  Represents alc. Dep. In those who are active in Alcoholic Anonyms.  These persons are unable to stop drinking once they start, but if drinking is terminated (due to ill health or lack of money), they can abstain quite well.. Only psychological dependence Delta alcohol dependence  Include those who must drink a certain amount each day, but are unaware of a lack of control
  • 28. F10.3 ALCOHOL WITHDRAWAL “A group of symptoms and signs which occur on cessation or reduction of use of a psychoactive substance, -that has been taken repeatedly, usually for a prolonged period and/ or in high doses.”  It can be-  Uncomplicated- ocurring in 6-48 hrs and abates after 2-5 days.  Complicted- with seizures, delirum.
  • 29. DIAGNOSIS OF ALC. WITHDRAWAL A) Cessation of (or reduction in) alcohol use. B) Two (or more) of the following, developing within several hours to a few days after Criterion A: (1) Autonomic hyperactivity (2) Increased hand tremor (3) Insomnia (4) Nausea or vomiting C) Social & occupational functioning impairment. D) Not due to a general medical condition or mental disorder. (5) Transient hallucinations or illusions (6) Psychomotor agitation (7) Anxiety (8) GTCS
  • 30. ALCOHOL WITHDRAWAL SYMPTOMS Time withdrawal symptoms 3 to 12 hours SOMATIC SYMPTOM ,Insomnia, tremulousness, mild anxiety, gastrointestinal upset, headache, diaphoresis, palpitations, anorexia 12 to 24 hours Withdrawal seizures: generalized tonic-clonic seizures >72 hours Alcohol withdrawal delirium (delirium tremens): hallucinations (predominately visual),
  • 31. ALCOHOL WITHDRAWAL SEIZURES  5-15% cases of alcohol withdrawal  Within 24-48hrs but may up to 7days  Tonic-clonic in nature  Usually one or two episodes  30% of pts develop delirium  Give IV diazepam until seizure activity ceases  5-10mg IV initially, repeat if necessary every 15min up to a maximum dose of 100mg  Avoid anticonvulsant unless history of primary SD
  • 32. F10.4 DELIRIUM TREMENS  Medical Emergency  < 5% of Alcohol Withdrawal syndrome  Usually begins in 48-96hrs.  Last for 1-5 days  May be associated with seizure(F10.41)  In untreated cases mortality is up to 20%. Triad of symptoms includes- - Clouding of consciousness, Hallucinations and Illusions, Marked tremors.  Autonomic hyperactivity, dehydration, electrolyte imbalance.  Delusions may be present  May lead to circulatory collapse, coma & death
  • 33. MANAGEMENT OF DELIRIUM TREMENS  IV Fluid for hydration.  Mainstay are BZDS- -Lorazepam 2mg or Diazepam 10mg IV/IM. -Repeated doses till symptoms clear -Doses should be tapered in 5-7days  Thiamine 200-300mg IM daily for 3-5 days. Oral Thiamine three times a day.  Monitor vitals 4hrly, Closely observe for focal neurological deficit  Pt should be on high calorie, high carbohydrate diet.
  • 34. F10.5 PSYCHOTIC DISORDERS  Occur during or immediately after alcohol use and are characterized by- .Vivid hallucinations (mainly auditory), .Delusions or ideas of reference(morbid jealosy), .Psychomotor disturbances (excitement or stupor), .Abnormal affect.  Sensorium is usually clear but some clouding of consciousness may be present.  The disorder typically resolves in 1-6 months.
  • 35. DIAGNOSTIC GUIDELINES..  A psychotic disorder occurring during or immediately after drug use (usually within 48 hours) - provided that it is not a manifestation of withdrawal state with delirium and - should NOT be of late onset.  Late-onset psychotic disorders (with onset more than 2 weeks after substance use) should be coded as F10.75.
  • 36. F10.6 AMNESTIC SYNDROMES  A syndrome associated with  chronic prominent impairment of RECENT memory;  remote memory is sometimes impaired,  while immediate recall is preserved. Diagnostic guidelines- 1. Impairment of RECENT memory(learning of new material) ; Disturbance of time sense. 2. Preserved immediate recall; 3. Preserved consciousness; and absence of generalised cognitive impairment. 4. Evidence of chronic (high-dose) use of alcohol.
  • 37. WERNICKE ENCEPHALOPATHY  Progressive neurological condition caused by THIAMINE deficiency  Completely reversible  Global confusion  Opthalmoplegia - Horizontal nystagmus, 6th n. palsy  Ataxia, Vestibular dysfunction  Rapidly reversible with large parenteral doses 200-300mg of Thiamine. Then 100mg orally BD or TDS for 1-2 wk.  In pts. receiving iv fluids, include 100mg of thiamine in each liter of iv glucose solution.
  • 38. KORSAKOFF’S SYNDROME  Chronic condition  Reversible in only 20% of cases  Impaired Recent memory and anterograde amnesia in an alert and responsive pt.  Confabulation +/-  In most cases, the level of recent memory loss is out of proportion to the global level of cognitive impairment.  Thiamine100mg orally BD or TDS for 3 to 12 months.
  • 39. F10.7 RESIDUAL & LATE ONSET PSYCHOTIC DISORDER  A disorder in which alcohol-induced changes of cognition, affect, personality, or behaviour persist beyond the period during which a direct alcohol-related effect might be assumed to be operating.  Further subdivided by the following five-character codes:-  F10.70 Flashbacks  F10.71 Personality or behaviour disorder  F10.72 Residual affective disorder  F10.73 Dementia  F10.74 Other persisting cognitive impairment  F10.75 Late-onset psychotic disorder
  • 40. ALCOHOL INDUCED PERSISTING DEMENTIA  Global decreases in intellectual functioning, cognitive abilities, and memory.  But recent memory difficulties are consistent with the global cognitive impairment. (an observation that distinguishes the syndrome from alcohol-induced persisting amnestic disorder.)  50-70% show increased size of the brain ventricles and atrophy of frontal lobe. (these changes appear to be partially or completely reversible.) Brain functioning improves with abstinence, but 1/2 of all affected patients have long-term and even permanent memory and thinking disabilities.
  • 41. ALCOHOL INDUCED ANXIETY DISORDERS  Only two anxiety disorders may be more closely tied to alcoholism: panic disorder & social phobia.  During the first 4 to 6 weeks of abstinence  Disappear with time alone.
  • 42. ALCOHOL INDUCED SEXUAL DYSFUNCTION  Alcohol in small doses appears to enhance sexual receptivity in women and increase arousal to erotic stimuli in men.  Heavy continued drinking may cause significant sexual impairment:- - impaired desire - impaired arousal - impaired orgasm - sexual pain.  Symptoms usually subside after 3-4 weeks of alcohol abstinence.
  • 43. MX OF DEPENDENCE Step 1) Detection of alcohol dependence Step 2)Intervention Step 3) Detoxification (or withdrawal from alcohol) Step 4) Relapse prevention (or maitenence of abstinence) & Rehabilitation.
  • 44. BY- 1- SCREENING 2- HISTORY TAKING 3- LABORATORY DIAGNOSIS SCREENING- 1. CAGE questionnaire 2. AUDIT questionnaire  (A) DETECTION OF ALCOHOL MISUSE
  • 45. CAGE QUESTIONNAIRE  Consist of 4 questions- 1) Have you ever felt to Cut down on your drinking? 2) Have people Annoyed you by criticizing your drinking? 3) Have you ever felt Guilty about your drinking? 4) Have you ever had a morning drink (Eye opener) to get rid of hangover? -> 2 or more yes= alcohol misuse. -> Overall sensitivity is Good but modest specifity.
  • 46. AUDIT QUESTIONNAIRE  Ten questions. 5 point scale.  Designed at the request of WHO.  Scores are given for each answer. Score Intervention  8-15 - brief intervention based on risk factors.  16-19 - brief intervention, regular monitoring.  20-40 - diagnostic assess detoxification, and other treatments.
  • 47. LABORATORY DIAGNOSIS Parameter Normal value Value in chronic alcoholics Serum level of γ- transferase (GGT) Men 4-25 U/L Women 7-40 U/L >35 U/L Mean corpuscular volume(MCV) 80-98μm3 >91 µm3 Carbohydrate-deficient transferrin <60mg/l >3% of total transferrin concentration AST & ALT <45 U/L > 45.0 IU/L AST:ALT, 2:1 Carbohydrate def. transferrin is a variant of serum protein that transports iron, and increased in heavy drinking…more specific than GGT.
  • 48. (B) INTERVENTION  Pharmacotherapy  Psychosocial interventions
  • 49. (C) DETOXIFICATION  i.e Withdrawal of patient from alcohol.  Step 1) Thorough Physical examination (e.g. liver failure, gi bleed, arrhythmia, glucose or electrolyte imbalance; any combined drug abuse)  Step 2) Rest & Adequate nutrition (Vit-B complex specially Thiamine)  Step 3) BZD & other symptomatic pharmacotherapy
  • 50. PHARMACOTHERAPY 1) Benzodiazepines-  -drug of choice  -decreases s/s of withdrawal & prevents seizures & DT also  -long acting(chlordiazepoxide,diazepam) are preferred because of low dependence forming potential  (dose can be adjusted depending on s/s) Oxazepam/Lorazepam/ for elderly or hepatic impairment pts.
  • 51. Fixed dose reduction regime:  Used in non-specialist community setting.  For chlordiazepoxide 1 mg /unit qid. Then tapered in 5-7 days Symptom- triggering regimen:  used in presence of specialist. Chlordiazepoxide 20-30 mg hourly as needed. Front -loading regimens:  started with initial loading dose of Chlordiazepoxide 100 mg followed by 50- 100 mg every 4-6 hrly until light sedation is achieved.
  • 52. …PHARMACOTHERAPY 2) Thiamine  Prevention & treatment of Wernicke’s enceph & Korsakoff’s psychosis.  No impact on s/s of withdrawal or seizures or DT.  Thiamine- 100 to 300mg im or orally daily.  for at least 7 days (..upto 1-2 wk in WE & upto 3-12 months in KP )  Thiamine should always precede glucose administration
  • 53. OTHER DRUGS& ADJUNCTIVE THERAPIES Sympatholytics- -decreases autonomic hyperactivity in withdrawal. -Clonidine(α2 agonist), Propanolol(β-blocker) but these are not better than benzodiazepine. Barbiturates(Phenobarbital) -for withdrawal in pregnant women -lack of sufficient evidence KINDLING: the "kindling" phenomenon; the term refers to long-term changes that occur in neurons after repeated detoxifications.  Recurrent detoxifications are postulated to increase obsessive thoughts or alcohol craving
  • 54. (D)MAINTAINING ABSTINENCE & REHABILITAION DISULFIRAM ( ANTABUSE)  Irreversible Inhibits Aldehyde dehydogenase(ALDH), so acetaldehyde accumulates  Leads to unpleasant physical effect like.. Flushing, weakness, nausea, tachycardia on taking alcohol  Thus acts as aversive Rx discouraging impulsive alcohol use  Before starting disulfiram pt. should be abstinent from alcohol for 24 hours  Disulfiram reactions can occur upto 2 weeks after last dose  No tolerance with continous Rx of disulfiram  Dose- 800 mg first dose then 250 mg/day (100-500 mg/day)  C/I – heart failure, CAD, HTN, pregnancy, psychosis  High risk of serious S/E so generally not preferred
  • 55.  Precautions  All the patients who are prescribed disulfiram should be fully informed of the disulfiram–ethanol reaction and cautioned against the possible consequences of taking alcohol  strongly advised not to use any alcohol-containing preparations (e.g., certain cough syrups, sauces, vinegar, tonics, foods prepared with wine), avoid the use of aftershave lotions and back rubs containing alcohol.  patients should be advised to obtain and carry an identification card describing the symptoms of disulfiram–alcohol reaction and containing contact information in cases of emergency. Disulfiram should not be co- administered with paraldehyde or metronidazole, amitriptyline, warfarin, phenytoin, isoniazid, rifampicin, theophylline, anta-acid (base – digene) syrups..
  • 56.  Adverse Reactions  Drowsiness, headache, fatigue, allergic dermatitis, stomach upset, dizziness, acneform eruption, halitosis, and impotence.  Metallic or garlic-like aftertaste has been reported during the first 2 weeks of therapy. disappear spontaneously or by reducing dosage.  Sensorimotor peripheral neuropathy, frequently associated with combined treatment with metronidazole or isoniazid  More serious but rare side effects including jaundice, hepatitis, hepatic necrosis, and altered liver function tests as well as mood lability and mental status changes (e.g., psychotic or manic symptoms)
  • 57.  Drug interactions  Concomitant ingestion of antacids containing divalent cations as well as large doses of ferrous salts may reduce absorption of disulfiram.  With disulphiram elevated phenytoin plasma level and possibly lead to phenytoin toxicity.  may prolong prothrombin time, which may potentially require adjustments of the dose of the oral anticoagulants (e.g., warfarin )  Co-administration with ISONIAZID may cause ataxia and mental status change .  Disulfiram can differentially potentiate and prolong benzodiazepines' suppressing effect on the central nervous system  Disulfiram blocks the oxidation and renal excretion of rifampicin.
  • 58. ACAMPROSATE  Calcium acetyl homotaurinate  Decreases the glutamenergic excitatory activity (NMDA) & Increases GABA activity.  Supresses the urge to drink  Abstinence rates appear to be Doubled  S/E – diarrhoea, skin rashes, decreased libido, anxiety, depression  C/I – severe renal impairment (eliminated completely by kidney) Dose- 333mg 2TDS for > 60 kg wt and 2 BD if wt is < 60 kg ,before meal (as food interferes with absorption)
  • 59. NALTEXONE  Non selective opioid antagonist – blocks the reinforcing and rewarding effects of alcohol.  By decreasing dopaminergic activity after consumption of alcohol.  Reduced Craving(anti-craving) and reduced rate of relapse  S/E- nausea, constipation, anxiety, fatigue  C/I - in pt. taking opioids, hepatic failure  Dose- 50mg daily  Injectable preparation for poor compliance (190/380 mg/ month) , not approved in India.
  • 60. BACLOFEN  GABA-B agonist  Primarily used for the treatment of spastic movement disorders.  In 2012, Baclofen was approved for use in the treatment of alcoholism  Shown to enhance abstinence, reduce drinking quantity, reduce craving, and reduce anxiety in alcohol-dependent individuals.  Dose- 10-20mg tds/day
  • 61. PSYCHOSOCIAL INTERVENTIONS GOALS:  Enhance efficacy of Pharmacotherapy  Achieving sustained drug free status  Change in life style and  Improve quality of life MOTIVATION ENHANCEMENT THERAPY  Maximize patient's intrinsic desire to change substance use using motivational interviewing techniques  Empathic, non-judgemental and supportive approach to examine patient's ambivalence about changing substance use behaviours
  • 62.  BRIEF INTERVENTIONS :Also used for motivation enhancement .Consists of FRAMES: Feedback, Personal Responsibility, Advice, Menu , Empathy and Self efficacy. Lesser time and carried out in primary health care setting, cost effective  COGNITIVE BEHAVIOUR THERAPY :Based on social learning theories aimed at improving self control and social skills. Along with medications they have found to be effective in relapse prevention & decrease in alcohol use  BEHAVIOURAL THERAPIES: Based on learning theories and positive reinforcements for target behaviours Community reinforcement approach is effective  GROUP THERAPIES :Helps in making efficient use of therapist time. Encourage people to discuss problems and reduction in stigma  FAMILY THERAPY

Editor's Notes

  1. Alcohol enhances the effect of GABA on GABA-A neuroreceptors, resulting in decreased overall brain excitability. Chronic exposure to alcohol results in a compensatory decrease of GABA-A neuroreceptor response to GABA, evidenced by increasing tolerance of the effects of alcohol. Alcohol inhibits NMDA neuroreceptors, and chronic alcohol exposure results in up-regulation of these receptors. Abrupt cessation of alcohol exposure results in brain hyperexcitability, because receptors previously inhibited by alcohol are no longer inhibited. An important concept in both alcohol craving and alcohol withdrawal is the "kindling" phenomenon; the term refers to long-term changes that occur in neurons after repeated detoxifications. Recurrent detoxifications are postulated to increase obsessive thoughts or alcohol craving.
  2. Marchiafava-Bignami disease (MBD) is a rare condition characterized by demyelination of the corpus callosum. It is seen most often in patients with chronic alcoholism.  In 1903, Italian pathologists Marchiafava and Bignami described 3 alcoholic men who died after having seizures and coma. Subtypes of MBD In 2004, Heinrich et al described 2 clinical subtypes of MBD as follows, based on a review of 50 radiologic cases diagnosed in vivo[4] : Type A - Has predominant features of coma and stupor; this subtype is associated with a high prevalence of pyramidal-tract symptoms; radiologic features include involvement of the entire corpus callosum Type B - Characterized by normal or mildly impaired mental status; radiologic features are partial or focal callosal lesions (see the image below). The prognosis for MBD is correlated with the subtype, as follows: Type A - Has a long-term disability rate of 86% and a mortality rate of 21% Type B - Has a long-term disability rate of 19% and a mortality rate of 0% TREATMENT- No specific, proven treatment is available for Marchiafava-Bignami disease (MBD). The most common treatments are thiamine, folate, and other B vitamins (especially vitamin B-12)  a case report by Staszewski et al described amantadine given together with thiamine, vitamin B-12, and folate; the patient improved
  3. Under certain circumstances, one to two drinks per day can have some beneficial effects. Low doses of ethanol appear to decrease the risk for myocardial infarction and thrombotic stroke, probably through decreasing platelet aggregation and enhancing the beneficial impact of high-density lipoprotein cholesterol. Additional cardioprotective action may occur through antioxidant flavinoids or the inhibition of the vasoconstrictor, endothelin-1, in the components of red wine. Low doses of alcohol have also been reported to decrease the risks for some old-age dementias, peripheral arterial disease, and gallstones.
  4. Dsm-iv emphasises more on negative social consequences of subs abuse; while icd-10 on physical and psychological consequences. Term misuse also carries the same meaning.
  5. Alcohol enhances the effect of GABA on GABA-A neuroreceptors, resulting in decreased overall brain excitability. Chronic exposure to alcohol results in a compensatory decrease of GABA-A neuroreceptor response to GABA, evidenced by increasing tolerance of the effects of alcohol. Alcohol inhibits NMDA neuroreceptors, and chronic alcohol exposure results in up-regulation of these receptors. Abrupt cessation of alcohol exposure results in brain hyperexcitability, because receptors previously inhibited by alcohol are no longer inhibited. An important concept in both alcohol craving and alcohol withdrawal is the "kindling" phenomenon; the term refers to long-term changes that occur in neurons after repeated detoxifications. Recurrent detoxifications are postulated to increase obsessive thoughts or alcohol craving
  6. KINDLINGAn important concept in both alcohol craving and alcohol withdrawal is the "kindling" phenomenon; the term refers to long-term changes that occur in neurons after repeated detoxifications. Recurrent detoxifications are postulated to increase obsessive thoughts or alcohol craving In many alcoholics, the severity of withdrawal symptoms increases after repeated withdrawal epi sodes . Thi s exacerbat ion may be at t r ibutable to a kindl ing proces s . Kindl ing i s a phenomenon in which a weak electrical or chemical stimulus, which initially causes no overt behavioral responses, results in the appearance of behavioral effects, such as seizures, when it is administered repeatedly. Both clinical and experimental evidence support the existence of a kindling mechanism during alcohol withdrawal. Withdrawal symptoms, such as seizures, result from neurochemical imbalances in the brain of alcoholics who suddenly reduce or cease alcohol consumption. These imbalances may be exacerbated after repeated withdrawal experiences. The existence of kindling during withdrawal suggests that even patients experiencing mild withdrawal should be treated aggressively to prevent the increase in severity of subsequent withdrawal episodes. Kindling also may contribute to a patient’s relapse risk and to alcohol-related brain damage and cognitive impairment
  7. Autonomic dis include sweating,fever, tachycardia, high bp, dilated pupils. CASE- A 73-year-old professor emeritus at a university was believed to be in good health when he entered the hospital for an elective hernia repair. Perhaps reflecting his status in the community, the relatively brief history contained no detailed notes of his drinking pattern and made no mention of his γ-glutamyltransferase value of 55 U/L along with the MCV of 93.5 µm3. Eight hours postsurgery, the nursing staff noted a sharp increase in the pulse rate to 110, an increase in blood pressure to 150/100, prominent diaphoresis, and a tremor to both hands, after which the patient demonstrated a brief but intense grand mal convulsion. He awoke extremely agitated and disoriented to time, place, and person. A reevaluation of the history and an interview with the wife documented alcohol dependence with a consumption of approximately six standard drinks per night. Over the following 4 days, the patient's autonomic nervous system dysfunction decreased as his cognitive impairment disappeared. His condition is classified as alcohol withdrawal delirium in DSM-IV-TR.
  8. Research over the past 30 years has identified several mechanisms through which alcoholism may contribute to thiamine deficiency. The most important of these mechanisms (as discussed in Hoyumpa 1980) include: -Inadequate nutritional intake -Decreased absorption of thiamine from the gastrointestinal tract and reduced uptake into cells -Impaired utilization of thiamine in the cells. Inadequate Nutritional Intake Although most people require a minimum of 0.33 mg thiamine for each 1,000 kcal of energy they consume, alcoholics tend to consume less than 0.29 mg/1,000 kcal (Woodhill and Nobile 1972). In fact, in an early study of 3,000 alcoholics admitted to hospitals because of alcohol withdrawal symptoms or other alcohol–related illnesses, 40 percent exhibited periodic thiamine deficiency during drinking binges, 25 percent exhibited prolonged thiamine deficiency with some periods of normal intake, and 35 percent exhibited continuous thiamine deficiency (Leevy and Baker 1968). A later study found that alcoholic patients had significantly lower average levels of a thiamine compound containing one phosphate group (i.e., thiamine monophosphate), but the average levels of free thiamine and ThDP were similar in alcoholics and control subjects (Tallaksen et al. 1992). However, some of the alcoholics in that study had extremely high levels of free thiamine, suggesting that they may have had a problem in the steps that lead to the conversion of thiamine into its active, phosphate–containing form. Decreased Uptake of Thiamine From the Gastrointestinal Tract Animal studies have helped elucidate the mechanisms of normal and alcohol–impaired thiamine uptake from the gastrointestinal tract into the blood and cells. To be used by the body, thiamine must cross a number of barriers, first transferring across the membranes of the cells lining the gut (i.e., enterocytes), then entering those cells, and then crossing the membranes at the other end of the cells to enter the bloodstream. At low thiamine concentrations, such as those normally found in the human body, this transfer is achieved by a specific thiamine transporter molecule that requires energy. This is called an active transport process and seems to be associated with the rapid addition of two phosphate groups by the enzyme thiamine diphosphokinase (TPK) once the thiamine is inside the cell. At high thiamine concentrations, however, such as can be achieved after additional thiamine is administered, thiamine transport occurs through a passive process—that is, a mechanism that requires no energy. Acute alcohol exposure interferes with the absorption of thiamine from the gastrointestinal tract at low, but not at high, thiamine concentrations (Hoyumpa 1980). Furthermore, in studies using rats, the activity of the TPK enzyme from various tissues decreased with acute alcohol exposure to about 70 percent of the activity level in control animals, and with chronic alcohol exposure to about 50 percent (Laforenza et al. 1990). Although no studies have addressed whether alcohol directly affects TPK in humans, indirect analyses have found that the ratio of phosphorylated thiamine (primarily ThDP) to thiamine is significantly lower in alcoholics than in nonalcoholics (Poupon et al. 1990; Tallaksen et al. 1992)—that is, that less thiamine is converted to ThDP. This finding suggests that TPK is less active in the alcoholics. Thiamine malabsorption could become clinically significant if combined with the reduced dietary thiamine intake that is typically found in alcoholics, when other aspects of thiamine utilization are compromised by alcohol, or when a person requires increased thiamine amounts because of his or her specific metabolism or condition (e.g., in pregnant or lactating women). Impaired Thiamine Utilization The cells’ utilization of thiamine can be affected in different ways by chronic alcohol use. As mentioned earlier, once thiamine is imported into the cells, it is first converted into ThDP by the addition of two phosphate groups. ThDP then binds to the thiamine–using enzymes, a reaction that requires the presence of magnesium. Chronic alcohol consumption frequently leads to magnesium deficiency, however (Morgan 1982; Rindi et al. 1992), which also may contribute to an inadequate functioning of the thiamine–using enzymes and may cause symptoms resembling those of thiamine deficiency. In this case, any thiamine that reaches the cells cannot be used effectively, exacerbating any concurrently existing thiamine deficiency. Abstinence from alcohol and improved nutrition have been shown to reverse some of the impairments associated with thiamine deficiency, including improving brain functioning (Martin et al. 1986). Researchers also administered thiamine to alcoholic patients and laboratory animals and found that this treatment reversed some of the behavioral and metabolic consequences of thiamine deficiency (Victor et al. 1989; Lee et al. 1995). Most recently, researchers administered different thiamine doses for two days to a group of alcoholics undergoing detoxification, none of whom were diagnosed with WKS, and then tested the participant’s working memory. These studies found that participants who received the highest thiamine dose performed best on tests of working memory (Ambrose et al. 2001). DIFFERENTIAL SENSITIVITY TO THIAMINE DEFICIENCY Differences in Sensitivity Among People Several findings suggest that not all people are equally sensitive to thiamine deficiency and its consequences. For example, although thiamine deficiency may occur in up to 80 percent of alcoholics (Tallaksen et al. 1992; Hoyumpa 1980; Morgan 1982), only about 13 percent of alcoholics develop WKS (Harper et al. 1988). This means that the severest consequences of thiamine deficiency develop only in a subset of people who consume alcohol and have poor nutrition on a chronic basis. A possible explanation for this differential sensitivity is that some people are genetically predisposed to develop brain damage after experiencing repeated episodes of alcohol–related thiamine deficiency. To investigate this hypothesis, researchers have studied the activities of thiamine–using enzymes in patients with and without Korsakoff’s psychosis, arguing that variants of these enzymes may exist that could differ in their susceptibility to thiamine deficiency. The results of these investigations, however, have been inconsistent.2 (2 The studies cited in this section mostly used enzymes isolated from skin or blood cells of the participants. Although it is not known whether the effects of thiamine deficiency on these cells are identical to those on brain cells, the thiamine–using enzymes in these cells should be similar to the enzymes in brain cells, which are not accessible to the researchers. Using such model systems to investigate mechanisms of cell function has a long tradition in research.) One study (Blass and Gibson 1977) compared the activity of transketolase, PDH, and α–KGDH derived from skin cells of people with and without Korsakoff’s psychosis. These investigators found that transketolase from the Korsakoff’s patients bound ThDP less avidly than did the enzyme from the control subjects. Transketolase from the Korsakoff’s patients could function normally when sufficient thiamine or ThDP was present; under conditions of thiamine deficiency, however, the transketolase molecules would not be able to bind enough ThDP to maintain normal enzyme activity. As a result, the Korsakoff’s patients would be more susceptible to developing complications of thiamine deficiency than would people with a transketolase variant that more readily binds ThDP. The investigators found no differences, however, between Korsakoff’s patients and control subjects in the ability of the PDH and α–KGDH enzymes to bind ThDP. In another study (Mukherjee et al. 1987), researchers studied transketolase activity in alcoholic men without Korsakoff’s psychosis and their sons who had not yet been exposed to alcohol (i.e., who were alcohol naive) and compared it with transketolase activity in nonalcoholic volunteers and their sons. This analysis found that the enzyme from the alcoholic men and their sons also bound ThDP less strongly than did the enzyme from the healthy volunteers and their sons (fathers and sons were similar to each other in both groups). This finding suggests that the genetic makeup of alcoholics or those who are at risk of becoming alcoholic (e.g., sons of alcoholics who are still alcohol naive) might cause them to be more affected by thiamine deficiency than nonalcoholics. Other investigators, however, have found no differences in the ability of transketolase from Korsakoff’s patients and healthy subjects to bind ThDP (Nixon et al. 1984). Several reasons may explain these differences in findings. For example, if a study includes active alcoholics, toxic substances formed during alcohol degradation in the body (e.g., acetaldehyde or oxygen radicals) could conceivably damage the transketolase, leading to impaired transketolase activity even if the person does not have a genetic predisposition. Moreover, processing of the samples being studied could have modified and deactivated the transketolase. Overall, researchers to date have found no consistent correlation between genetically determined transketolase variants and a person’s sensitivity to thiamine deficiency (McCool et al. 1993). To determine whether a genetic predisposition to thiamine deficiency and resulting brain damage does indeed exist, more detailed molecular genetic studies are required. Another possible explanation for the differences among people in their sensitivity to thiamine deficiency has focused on the assembly of functional transketolase. To yield a functional enzyme, two transketolase molecules—each of which is bound to ThDP and to magnesium—must come together. This assembly step is aided by an as yet unidentified “assembly factor,” which is probably also involved in the assembly of other thiamine–using enzymes. If this factor were defective, the final enzyme complex would be formed at a lower rate and would be unstable (Wang et al. 1997). Researchers have identified at least one person with WKS whose cells showed enhanced sensitivity to thiamine deficiency and in whom the assembly factor was defective (Wang et al. 1997). Other mechanisms that could contribute to individual differences in the sensitivity to alcoholism could involve variability in the capacity for thiamine uptake into the cells or in the overall sensitivity to cell damage induced by oxidative stress. Differential Sensitivity of Various Brain Regions Various brain regions and even different cell types within one brain region may differ in their sensitivity to alcohol–induced damage as well as in their susceptibility to associated problems, including alcohol–related malnutrition (e.g., thiamine deficiency). For example, as mentioned earlier, the cerebellum appears to be particularly sensitive to thiamine deficiency, as indicated by the high frequency of cerebellar degeneration in alcoholics. Autopsy studies have found that a region of the cerebellum known as the anterior superior cerebellar vermis most frequently exhibits alcohol–induced damage (Baker et al. 1999). Additional studies have found that the cerebellar vermis is particularly sensitive to the deleterious effects of thiamine deficiency (Baker et al. 1999; Lavoie and Butterworth 1995; Victor et al. 1989). For example, thiamine deficiency contributes to a reduction in the number and size of a certain cerebellar cell type called Purkinje cells in parts of the cerebellar vermis (Philips et al. 1987). The sensitivity of the cerebellum to alcohol–related damage was confirmed in a recent study in which investigators used an imaging technique called proton magnetic resonance spectroscopy (proton MRS) to determine the levels of certain molecules (i.e., metabolites) that reflect the functionality of the cells in various brain regions of alcoholics and nonalcoholics. For example, one metabolite reflects nerve cell activity, another metabolite reflects the degradation and formation (i.e., turnover) of cell membrane components, and a third metabolite reflects cellular energy levels. The results of the analyses indicated that these metabolites are significantly reduced in the cerebellum of alcoholics, more so than in another brain region commonly affected by alcohol, the frontal white–matter cortex (Parks et al. 2002). Moreover, only some of these reductions in metabolite levels were reversed when the subjects were tested again after 3 weeks and then 3 months of abstinence. These findings suggest that the cerebellum, in particular the cerebellar vermis, is uniquely sensitive to alcohol’s effects, including alcohol–related thiamine deficiency, and therefore may be the initial target of alcohol–related damage. This hypothesis is consistent with the clinical course of the neurocognitive deficits observed in alcoholics. Networks of nerve cells (i.e., neural pathways) extend from the cerebellum through brain regions called the basal ganglia and thalamus to the frontal lobe. These pathways mediate not only traditional cerebellar functions, such as motor control, but also perceptual– motor tasks, executive functions, and learning and memory, all of which are impaired in alcoholics (see Parks et al. 2002). Accordingly, alcohol–induced damage to the cerebellar vermis could indirectly affect neurocognitive functions attributed to the frontal lobe, even early in the disease process when no cortical damage is detectable, by disrupting the neural pathways connecting the two brain regions. As the alcoholism progresses and alcohol exposure persists, damage to the frontal lobe is also likely to occur, further interfering with the functions of that brain region. In addition to the cerebellum, numerous other brain regions and structures are damaged in people with WKS. Although animal studies have suggested that thiamine deficiency may contribute to damage to these structures, the exact role of thiamine deficiency and the level of sensitivity of these structures to thiamine deficiency have not yet been determined. Further studies are certainly needed in this area. SUMMARY Thiamine deficiency, which is found in a large number of alcoholics, is an important contributor to alcohol–related brain damage of all kinds, not only WKS, as was commonly thought in the past. Thiamine is an essential cofactor for several enzymes involved in brain cell metabolism that are required for the production of precursors for several important cell components as well as for the generation of the energy–supplying molecule ATP. Thiamine deficiency leads to significant reductions in the activities of these enzymes, and to deleterious effects on the viability of brain cells. Chronic alcohol consumption can cause thiamine deficiency and thus reduced enzyme activity through several mechanisms, including inadequate dietary intake, malabsorption of thiamine from the gastrointestinal tract, and impaired utilization of thiamine in the cells. Accordingly, thiamine deficiency can potentiate a number of processes associated with chronic alcohol consumption that are toxic to brain cells, as discussed in other articles in this journal issue. It is important to note that these adverse effects of alcohol–induced thiamine deficiency, particularly the reduction of transketolase activity, can occur even in alcoholics who do not show evidence of WE or WKS. The extent to which alcohol exerts its detrimental effects on the brain and various other tissues may be genetically determined via individual differences in predisposition to thiamine deficiency disorders. For example, some studies have suggested that there may be different variants of the genes encoding transketolase, which differ in their ability to bind the active form of thiamine, particularly at low thiamine concentrations. Such a genetic variation could be one explanation for why only a subset of alcoholics who experience thiamine deficiency develop the pathological consequences of that condition, such as WKS. Additional genetic studies are necessary, however, to clarify the roles of different genetic variants and determine whether a genetically determined susceptibility does indeed exist. Various brain regions also differ in their sensitivity to alcohol’s effects, including alcohol–induced thiamine deficiency. The cerebellum appears to be particularly sensitive to the effects of thiamine deficiency and is the region most frequently damaged in association with chronic alcohol consumption. This heightened susceptibility is consistent with the cognitive deficits typically associated with alcoholism. These deficits are indicative either of cerebellar damage or of damage to the frontal lobes, which are connected to the cerebellum through neural pathways. Accordingly, reversal of thiamine deficiency—for example, by administering thiamine at pharmacological levels—may not only ameliorate the consequences of cerebellar damage but improve some brain functions typically associated with the frontal lobe.
  9. Carbohydrate def transferrin is a variant of serum protein that transports iron, and inreased in heavy drinking…more specific than GGT.
  10. KINDLINGAn important concept in both alcohol craving and alcohol withdrawal is the "kindling" phenomenon; the term refers to long-term changes that occur in neurons after repeated detoxifications. Recurrent detoxifications are postulated to increase obsessive thoughts or alcohol craving In many alcoholics, the severity of withdrawal symptoms increases after repeated withdrawal epi sodes . Thi s exacerbat ion may be at t r ibutable to a kindl ing proces s . Kindl ing i s a phenomenon in which a weak electrical or chemical stimulus, which initially causes no overt behavioral responses, results in the appearance of behavioral effects, such as seizures, when it is administered repeatedly. Both clinical and experimental evidence support the existence of a kindling mechanism during alcohol withdrawal. Withdrawal symptoms, such as seizures, result from neurochemical imbalances in the brain of alcoholics who suddenly reduce or cease alcohol consumption. These imbalances may be exacerbated after repeated withdrawal experiences. The existence of kindling during withdrawal suggests that even patients experiencing mild withdrawal should be treated aggressively to prevent the increase in severity of subsequent withdrawal episodes. Kindling also may contribute to a patient’s relapse risk and to alcohol-related brain damage and cognitive impairment
  11. Rx of severe disulfiram reac– iv fluids, dopamine infusion if severe hypotension, antihistaminics, 4-methylpyrazole(fomepizole)??- To block formation of acetaldehyde by inhibiting alc dehydrogenase.