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5/20/15	
  
1	
  
New Anti-Seizure
Medications
Elia M Pestana Knight, MD
Cleveland Clinic
Epilepsy Center
Nothing to disclose
5/20/15	
  
2	
  
Topics for this lecture
  Antiepileptic Drugs
  What are antiepileptic drugs?
  Historical development of the drugs
  How doctors select the drugs to treat the
seizures?
  Common side effect
  Drug interactions
  A case for the need of Epilepsy and
Psychiatry team interaction
Antiepileptic Drugs
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What are antiepileptic drugs?
  Antiepileptic drugs (AEDs)
  Anticonvulsant medications
  Antiseizure medications
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4	
  
Antiseizure medications
  Drugs that decrease the frequency and/or
severity of seizures in people with epilepsy
  Treat the symptom of seizures, not the
underlying epileptic condition
  They don’t change the course of the disease
Antiepileptic drugs
  Drugs that prevent the development of recurrent
seizures in people at risk
  Drugs that reduce seizure frequency and severity
outlasting the treatment period
  Example: after head trauma, stroke, brain tumors, etc.
  Animal studies suggest that Levetiracetam and
Ethosuximide are potential antiepileptic drugs BUT
there are no studies in humans to support this
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5	
  
Use of antiseizure medications
  Epilepsy
  Pain treatment
  Neuralgias, neuropathic pain, etc.
  Migraine prophylaxis
  Treatment of bipolar disorder, mood disorder
and anxiety
Historical development of the
drugs
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6	
  
History of AEDs in the U.S.
  1857 – Bromides
  1882 – Paraldehyde (not longer in use in USA)
  1912 – Phenobarbital (PB)
  1937 – Phenytoin (PHT)
  1944 – Trimethodione
  1953 – Acetazolamide
  1954 - Primidone
  1960 – Ethosuximide
  1963 - Diazepam
  1974 – Carbamazepine (CBZ)
  1972 – Clorazepate and Lorazepam
  1975 – Clonazepam (CZP)
  1978 – Valproate (VPA)
New AEDs in the U.S.
  1993 – Felbamate (FBM), gabapentin (GBP)
  1995 – Lamotrigine (LTG)
  1996 – Fosphenytoin
  1997 – Topiramate (TPM), tiagabine (TGB)
  1999 – Levetiracetam (LEV)
  2000 – Oxcarbazepine (OXCBZ), zonisamide (ZNS)
  2005 - Pregabalin (PGB)
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Newer Drugs
  2008 – Lacosamide (Vimpat)
  2008 – Rufinamide (Banzel)
  2009 – Vigabatrin (Sabril)
  2011 – Ezogabine (Potiga) and Clobazam
(Onfi)
  2012 – Perampanel (Fycompa)
  When? – CBD oil – IF …..
No FDA approved AEDs
  Bromides (1857)
  Sulthiame
  Stiripentol (2001)
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Other treatments, diet and
devices
  Sex hormones: Progesterone
  Diets: Ketogenic diet, Low glycemic diet,
modified Atkins diet
  Devices: Vagus Nerve Stimulator (VNS) and
Neuropace
  Epilepsy Surgery
How doctors select the drugs to
treat the seizures?
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9	
  
Selecting the AEDs
  Seizure types or syndrome
  Rational polytherapy
  Age of the patient (oral suspension, chewable,
sprinkles for children)
  Dosing schedule
  Comorbidities and other medical conditions
  Potential side effects and toxicity
  Interaction with other drugs
  Cost-effectiveness
Goals of treatment
  Reduced number of seizures
  Minimal adverse events or side effects
  Best quality of life possible
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Common side effects
Adverse Effects
 Acute dose-related: reversible
 Idiosyncratic
  Uncommon - rare
  Potentially serious or life threatening
 Chronic: reversibility and seriousness vary
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11	
  
Acute - Dose-Related Adverse
Effects of AEDs
 Neurologic/psychiatric: most common
•  Sedation, fatigue
-  All AEDs, except unusual with LTG and FBM
-  More pronounced with traditional AED
•  Unsteadiness, poor coordination, dizziness
-  Mainly traditional AEDs
-  May be sign of toxicity with many AEDs
•  Tremor – valproate
•  Depression ????
Acute, Dose-Related Adverse
Effects of AEDs (cont.)
•  Parenthesis (topiramate, zonisamide)
•  Diplopia, blurred vision, visual distortion
(carbamazepine, lamotrigine)
•  Mental/motor slowing or impairment (topiramate at
higher doses)
•  Mood or behavioral changes (levetiracetam)
•  Changes in libido or sexual function
(carbamazepine, phenytoin, phenobarbital)
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Acute, Dose-Related Adverse
Effects of AEDs (cont.)
 Gastrointestinal (nausea, heartburn)
 Mild to moderate laboratory changes
•  Hyponatremia: carbamazepine, oxcarbazepine
•  Increases in ALT or AST: valproate
•  Leukopenia:
•  Thrombocytopenia: valproate
P-Slide 23
Acute, Dose-Related Adverse
Effects of AEDs (cont.)
 Weight gain/appetite changes
  Valproic acid
  Gabapentin
  Pregabalin
 Weight loss
  Topiramate
  Zonisamide
  Felbamate
P-Slide 24
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13	
  
Idiosyncratic Adverse
Effects of AEDs
 Toxic Epidermal necrolysis
 Stevens-Johnson syndrome
  More common in lamotrigine, patients receiving valproate and/
or aggressively titrated.
Signs of potential Stevens-Johnson syndrome
  Hepatic damage
  Early symptoms: abdominal pain, vomiting, jaundice
  Laboratory monitoring probably not helpful in early detection
  Patient education
  Fever and mucus membrane involvement
HLA-B 1502 and AED induced
rash
  Racial groups: Han Chinese and other South
East Asian groups
  Drugs: Carbamazepine, Oxcarbazepine,
Phenytoin, Fosphenytoin
  US FDA recommendations:
  Genotypic all Asian descend patients before
therapy
  (Ferrell and McLeod. Pharmacogenomics 2008)
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AED Hypersensitivity
Syndrome
 Characterized by rash, systemic involvement
hydrolase
 Cross-reactivity
  Phenytoin
  Carbamazepine
  Phenobarbital
  Oxcarbazepine
 Relative cross reactivity - lamotrigine
Idiosyncratic Adverse
Effects of AEDs
 Hematologic damage
 Marrow aplasia, agranulocytosis, aplastic anemia
 Early symptoms: abnormal bleeding, acute onset of fever,
symptoms of anemia
 Laboratory monitoring probably not helpful in early
detection
 Felbamate aplastic anemia approx. 1:5,000 treated
patients
 Patient education
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Other idiosyncratic reactions
  Serum sickness
  Pancreatitis
Long-Term Adverse Effects of AEDs
 Endocrine/Metabolic Effects
•  Osteomalacia, osteoporosis
•  Carbamazepine
•  Phenobarbital
•  Phenytoin
•  Oxcarbazepine
•  Topiramate
•  Valproate
•  Zonisamide
•  Folate (anemia, teratogenesis)
•  Phenobarbital
•  Phenytoin
•  Carbamazepine
•  Valproate
•  Lamotrigine
•  Topiramate
•  Altered connective tissue metabolism or
growth (facial coarsening, hirsutism, gingival
hyperplasia or contractures)
•  Phenytoin
•  Phenobarbital
 Neurologic
•  Neuropathy
•  Cerebellar syndrome - phenytoin
 Sexual Dysfunction - 30-60%
•  Phenytoin
•  Carbamazepine
•  Phenobarbital
•  Primidone
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Drug interactions
Pharmacokinetic Interactions
Be aware that drug interactions may occur when
there is the:
  Addition of a new medication when an inducer/
inhibitor is present.
  Addition of inducer/inhibitor to an existing
medication regimen.
  Removal of an inducer/inhibitor from chronic
medication regimen.
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17	
  
Hepatic Drug Metabolizing Enzymes
and Specific AED Interactions
 Phenytoin: CYP2C9/CYP2C19
  Inhibitors: valproate, ticlopidine, fluoxetine, topiramate,
fluconazole
 Carbamazepine: CYP3A4/CYP2C8/CYP1A2
  Inhibitors: ketoconazole, fluconazole, erythromycin,
diltiazem
 Lamotrigine: UGT 1A4
  Inhibitor: valproate
  Important note about oral contraceptives (OCPs):
  OCP efficacy is decreased by inducers,
  including: phenytoin, phenobarbital, primidone, carbamazepine;
and higher doses of topiramate and oxcarbazepine
  OCPs and pregnancy significantly decrease serum levels of
lamotrigine.
Potent inducers
  Carbamazepine, Phenobarbital, Phenytoin
  Effect of induction is seen within the first 3 weeks of treatment
  Caution when prescribing Bupropion, Quetiapine, etc
  Definitively have a significant effect over the metabolism of
  Sex hormones
  Vitamin D
  Thyroid hormones
  Lipid metabolism
  Folic acid
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Mild inducers
  Clobazam, eslicarbazepine, felbamate,
lamotrigine, oxcarbazepine, rufinamide,
topiramate, vigabatrin, and vaproic acid
  Can be inducers at higher doses
  Sometime have combined inhibitor effects
  It can take months before the maximum effect
is seen
  Effect on systemic metabolism is present at a
lesser degree
AEDs and Drug Interactions
 Although many AEDs can cause pharmacokinetic
interactions, several agents appear to be less
problematic.
 AEDs that do not appear to be either inducers or
inhibitors of the CYP system include:
Gabapentin
Lamotrigine (low dose)
Pregabalin
Tiagabine
Levetiracetam
Zonisamide
P-Slide 36
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AEDs and Foods
  Grapefruit juice
A case for the need of Epilepsy
and Psychiatry team interaction
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Case 1. Marcella
  15 years old
  left handed female
  refractory right parieto-occipital epilepsy status post
partial right occipital cortical resection at age 13
years
  seizure-free for a month
  Seizures recurred
Past Antiepileptic Medications
  Carbamazepine, Lamotrigine, Zonisamide
Current Antiepileptic Medications
•  Keppra 2,000 mg bid
•  Trileptal 1,200 mg bid
•  Other Meds: Prozac, Folic acid,
multivitamin, Vitamin D
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21	
  
Seizure onset
T8P8
P8O2
Fp1F3
F3C3
C3P3
P3O1
Fp2F4
F4C4
C4P4
P4O2
Ictal onset : P8, O2
Pre-op MRI
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22	
  
Pre-op PET
Pre-op Neuropsychological
Evaluation
  Report :
  Full scale IQ=77(6th%-borderline)
  Verbal scale=78(7th%-borderline)
  Performance scale=81(10th%-borderline)
  Visual immediate memory=109(73rd%-high average)
  Visual delayed memory=103(58th%average to high
average)
  Verbal immediate memory=69(2nd%-low average to poor)
  Verbal delayed memory=72(3rd%-low average to poor)
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Her Medical Comorbidities
  Morbid Obesity
  Weight = 145 kg = 319 lbs
  Mild to Moderate Asthma
  Obstructive Sleep Apnea
Her Neuropsychiatric Comorbidities
  Depression
  treated with Prozac
10mg
  suicidal ideation
  Anxiety
  not treated
  Migraine without aura
  chronic daily
headaches
  Learning disability
  in need of IEP
  home schooled
  Epilepsy stigma
  bullying at school
  poor peer
acceptance
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24	
  
Anesthesiologist
Sleep Medicine
Pulmonologist
Endocrinologist
Neurosurgeon
Epileptologist
Psychiatrist
Pediatrician
Child and Family
The Knowledge Program
  Developed at the Cleveland Clinic
  Screening tool for neuropsychiatry
comorbidities
  Katzan I et al. 2011
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25	
  
Take home points
  Antiseizure medications are prescribed taking
into account a number of factors
  Keep in mind drug drug interaction when
prescribing antiseizure medications
  A multidisciplinary team, that includes a
Psychiatrist, is a very important part of the
care for patients with epilepsy
QUESTIONS
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26	
  
Jana E. Jones, PhD
Associate Professor
Department of Neurology
University of Wisconsin
School of Medicine & Public Health
May 20, 2015
Anxiety Disorders
in Epilepsy
Outline
1. Anxiety & Adults with Epilepsy
2. Anxiety & Children with Epilepsy
3. Anxiety & Quality of Life
3. Treatment Options
4. Conclusions
5/20/15	
  
27	
  
•  15%	
  to	
  25%	
  Community	
  prevalence.	
  
•  16%	
  to	
  25%	
  Hospital	
  prevalence.	
  
•  11%	
  to	
  32%	
  prevalence	
  among	
  surgery	
  
candidates.
Vazquez & Devinsky, 2003
DSM/ICD	
  Based	
  Diagnoses	
  
Victoroff	
  (1994) 	
   	
   	
   	
  32%	
  
Manachanda	
  et	
  al.	
  (1996) 	
   	
   	
  11%	
  
Perini	
  	
  et	
  al.	
  (1996) 	
   	
   	
   	
  16%	
  
Altschuler	
  et	
  al.	
  (1999) 	
   	
   	
  	
  	
  5%	
  
Glosser	
  et	
  al.	
  (2000) 	
   	
   	
   	
  22%	
  
Swinkles	
  et	
  al.	
  (2001) 	
   	
   	
   	
  25%	
  
Jones	
  et	
  al.	
  (2007)	
   	
   	
   	
   	
  35%	
  
Tellez-­‐Zenteno	
  et	
  al.	
  (2007) 	
   	
   	
  22%	
  
Brandt	
  et	
  al.	
  (2010) 	
   	
   	
   	
  20%	
  
Kanner	
  et	
  al.	
  (2010) 	
   	
   	
   	
  15%	
  
Mean = 20%
Median = 21%
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28	
  
5/20/15	
  
29	
  
• A large number of participants have more than one diagnosis (n=59).
(Jones et al., 2005)
5/20/15	
  
30	
  
Anxiety	
  in	
  Pediatric	
  Epilepsy	
  
Observational Studies
Authors Measure Outcome in epilepsy
__________________________________________________________
Ettinger et al. (1998) RCMAS 16% elevated anxiety
Williams et al. (2003) RCMAS 23% elevated anxiety
Baki et al. (2004) STAI 49% mild to mod. Anxiety
Vega et al. (2011) BASC 30% elevated anxiety
__________________________________________________________
5/20/15	
  
31	
  
Controlled Studies
Authors Measure Outcome
_____________________________________________________
Oguz et al. (2002) STAI High state & trait anxiety
Baker et al. (2005) SADS/LOI High social anxiety
& obsessive
symptoms
Loney et al. (2008) RCMAS Elevated anxiety
_____________________________________________________
DSM	
  based	
  studies	
  	
  	
  	
  	
  	
  	
  	
  	
  	
  	
  	
  	
  	
  	
  	
  	
  	
  	
  	
  	
  	
  	
  	
  	
   	
  Anxiety	
  Disorders 	
   	
  	
  
Alwash	
  et	
  al.	
  (2000) 	
   	
   	
   	
  48.5%	
  
OM	
  et	
  al.	
  (2001) 	
   	
   	
   	
  13.0%	
  
Adewuya	
  &	
  Ola	
  (2005) 	
   	
   	
  31.4%	
  
Caplan	
  et	
  al.	
  (2005) 	
   	
   	
   	
  36.0%	
  	
  
Jones	
  et	
  al.	
  (2007) 	
   	
   	
   	
  35.8%	
  
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32	
  
New Onset Sample
•  Children	
  with	
  new-­‐onset	
  epilepsy	
  (n	
  =	
  180)	
  and	
  healthy	
  
first-­‐degree	
  cousin	
  controls	
  (n	
  =	
  107).	
  
•  Study	
  parVcipants	
  were	
  recruited	
  from	
  pediatric	
  
neurology	
  clinics	
  at	
  two	
  large	
  Midwestern	
  medical	
  centers.	
  
•  Children	
  with	
  epilepsy	
  were	
  included:	
  
	
   	
  	
  (1)	
  diagnosis	
  of	
  epilepsy	
  within	
  the	
  past	
  12	
  months	
  
	
   	
  	
  (2)	
  chronological	
  age	
  between	
  8–18	
  years	
  
	
   	
  	
  (3)	
  no	
  other	
  developmental	
  disabiliVes	
  (e.g.	
  auVsm,	
  
	
  intellectual	
  disability)	
  
	
   	
  (4)	
  no	
  other	
  neurological	
  disorder	
  and	
  normal	
  clinical	
  	
  	
  	
  
	
  MRI.	
  
•  Children	
  and	
  parents	
  parVcipated	
  in	
  a	
  structured	
  
psychiatric	
  interview	
  (K-­‐SADS)	
  at	
  baseline.	
  	
  
Prevalence	
  of	
  Current	
  Anxiety	
  Disorders	
  at	
  Baseline
Epilepsy	
  
(n=180)
Control	
  
(n=107)
Any	
  Axis	
  I	
  Disorder 113	
  (62.8%) 28	
  (26.2%)
Any	
  Anxiety	
  Disorder 	
  70	
  (38.9%) 19	
  (17.8%)
Specific	
  Phobia	
  	
   	
  36	
  (20.0%) 11	
  (10.3%)
Social	
  Phobia	
  	
   16	
  (8.9%) 1	
  (1.0%)
SeparaTon	
  Anxiety	
  	
   13	
  (7.2%) 0
Generalized	
  Anxiety	
  Disorder	
  	
   15	
  (8.3%) 5	
  (4.7%)
Anxiety	
  NOS	
  	
   15	
  (8.3%) 6	
  (5.6%)
Number	
  of	
  Anxiety	
  Disorders
Single	
  Anxiety	
  Disorder 48	
  (68.6%) 15	
  (78.9%)
Two	
  or	
  More	
  Anxiety	
  Disorders 22	
  (31.4%) 	
  4	
  (21.1%)
1	
  No	
  cases	
  of	
  Agoraphobia	
  and	
  Panic	
  
Disorders
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33	
  
0	
  
2	
  
4	
  
6	
  
8	
  
10	
  
12	
  
14	
  
16	
  
18	
  
20	
  
22	
  
24	
  
Specific	
  Phobia	
   Social	
  Phobia	
   SeparaVon	
  Anxiety	
  
Prevalence	
  (percent)	
   Median	
  Age	
  of	
  Onset	
  (years)	
  
Common anxiety disorders in childhood: Prevalence and age of onset
(Kessler et al., 2012)
New	
  Onset	
  Epilepsy	
  with	
  &	
  without	
  
Anxiety	
  
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34	
  
Jones et al., 2015
Jones et al., 2015
5/20/15	
  
35	
  
Jones et al., 2015
Jones et al., 2015
5/20/15	
  
36	
  
MRI Findings	
  
•  Anxiety is a common psychiatric
comorbidity in children with recent-onset
epilepsy.
•  Potential neuroanatomical substrate
consisting of volumetric enlargement of
the amygdala. Daley et al. (2008) reported
a similar finding.
•  Thinner cortex in orbital and other regions
of prefrontal cortex.
MRI findings
•  There are abnormalities in brain structures
that are involved in the networks found in
individuals with anxiety disorders in the
general population.
•  These anatomic findings:
– are evident early in the course of epilepsy.
– are not related to chronicity of seizures.
– are linked to a family history of anxiety and
depressive disorders.
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37	
  
2 Year Follow-up
•  Children with epilepsy returned for follow-
up 2 years after their baseline evaluation.
•  Healthy controls also returned.
•  The KSADS was repeated with child and
parent separately.
Jones et al.
(2015)
Jones et al., in progress
5/20/15	
  
38	
  
In	
  epilepsy,	
  suicide	
  aMempters	
  had	
  elevated	
  
anxiety	
  compared	
  to	
  those	
  with	
  no	
  history	
  
of	
  suicide	
  aMempts.	
  	
  	
  	
  
Batzell	
  &	
  Dodrill	
  (1986)	
  
•  At	
  Baseline:	
  	
  	
  
–  42%	
  children	
  with	
  epilepsy	
  and	
  anxiety	
  had	
  suicidal	
  thoughts.	
  	
  	
  
–  45%	
  children	
  with	
  epilepsy	
  and	
  no	
  anxiety.	
  	
  
•  At	
  Follow-­‐up:	
  	
  
–  21%	
  children	
  with	
  epilepsy	
  and	
  anxiety	
  had	
  suicidal	
  thoughts.	
  	
  
–  34%	
  children	
  with	
  epilepsy	
  and	
  no	
  anxiety.	
  	
  
•  Suicidal	
  thoughts	
  are	
  common	
  in	
  children	
  with	
  epilepsy	
  
and	
  anxiety.	
  
•  Suicidal	
  thoughts	
  are	
  also	
  quite	
  common	
  in	
  children	
  with	
  
epilepsy	
  without	
  anxiety.	
  	
  
5/20/15	
  
39	
  
Poorer HRQOL is significantly associated with
increased symptoms of anxiety.
Proportion of variance in HRQOL accounted for by
demographic, clinical epilepsy and anxiety variables.
5/20/15	
  
40	
  
Treatment Recommendations
•  No	
  randomized	
  controlled	
  trials	
  for	
  the	
  
treatment	
  of	
  anxiety	
  disorders	
  in	
  children	
  or	
  
adults	
  with	
  epilepsy,	
  including	
  
pharmacological	
  and	
  nonpharmacological	
  
intervenVons.	
  	
  
•  Very	
  lidle	
  evidence	
  regarding	
  specific	
  pracVce	
  
parameters	
  for	
  the	
  treatment	
  anxiety	
  
disorders	
  in	
  adults	
  or	
  children.	
  	
  
Baseline:	

KSADS interview	

Questionnaires	

3-month follow up:	

Booster session	

Parent Meeting	

Questionnaires	

Level 7:	

Begin Exposure Tasks	

Parent Meeting
Questionnaires	

Level 2:	

Physical signs of anxiety	

Level 1:	

CBT & anxiety	

Parent Meeting	

Level 12:	

Exposure Tasks	

Parent Meeting	

Questionnaires	

Levels 8-11:	

Exposure Tasks	

Level 3:	

Relaxation	

Parent Meeting	

Levels 4-6:	

Anxious thoughts, coping
thoughts, problem solving, &
self-reward	

Skill Building Phase
Skill Practice Phase
Camp Cope-A-Lot Intervention Outline
(Khanna & Kendall, 2008)
5/20/15	
  
41	
  
(Blocher et al., 2013)r
(Jones et al., 2014)
al
Piers-Harris-2 at
baseline, week 7,
12 and 3 months
5/20/15	
  
42	
  
Pharmacological Treatment
•  There are no randomized controlled trials
of the use of SSRIs in the treatment of
anxiety disorders in adults or children with
epilepsy.
•  There is evidence to suggest that seizure
frequency is not adversely impacted by the
introduction of SSRIs.
•  Anxiety	
  is	
  common	
  in	
  adults	
  and	
  children	
  
with	
  epilepsy.	
  
•  There	
  are	
  potenTal	
  neuroanatomical	
  
substrates	
  idenTfied	
  in	
  children	
  with	
  epilepsy	
  
similar	
  to	
  those	
  reported	
  in	
  the	
  general	
  
populaTon.	
  	
  
•  Anxiety	
  has	
  a	
  negaTve	
  impact	
  on	
  overall	
  
QOL.	
  
•  Anxiety	
  is	
  frequently	
  under	
  recognized	
  and	
  
under	
  treated.	
  	
  
5/20/15	
  
43	
  
•  Only	
  1/3	
  of	
  children	
  with	
  epilepsy	
  and	
  mental	
  
health	
  problems	
  receive	
  treatment	
  (OM	
  et	
  al.,	
  
2001).	
  
•  Parents	
  report	
  that	
  emoTonal	
  and	
  behavioral	
  
problems	
  are	
  very	
  concerning	
  to	
  them	
  (Wu	
  et	
  
al.,	
  2008).	
  
•  Neurologists	
  &	
  pediatricians	
  who	
  treat	
  children	
  
with	
  epilepsy	
  feel	
  there	
  is	
  a	
  resistance	
  on	
  the	
  
part	
  of	
  mental	
  health	
  providers	
  to	
  treat	
  
children	
  with	
  epilepsy	
  (Smith	
  et	
  al.,	
  2007).	
  
Acknowledgements	
  
University	
  of	
  Wisconsin 	
   	
   	
  UCLA	
  
Bruce	
  P.	
  Hermann,	
  PhD 	
   	
   	
  Rochelle	
  Caplan,	
  MD	
  
Carl	
  Stafstrom,	
  MD,	
  PhD	
  
David	
  Hsu,	
  MD,	
  PhD 	
   	
   	
  Mayo/Nemours	
  Children’s	
  Hospital	
  
Fred	
  Edelman,	
  MD 	
   	
   	
   	
  Raj	
  Sheth,	
  MD	
  
Lucy	
  Zawadzki,	
  MD	
  
Chris	
  Ikonomidou,	
  	
  MD 	
   	
   	
  Rosalind	
  Franklin	
  University	
  
Daren	
  Jackson,	
  PhD	
   	
   	
   	
  Michael	
  Seidenberg,	
  PhD 	
  	
  
Kevin	
  Dabbs,	
  MS 	
   	
   	
   	
  	
  	
  
Jacque	
  Blocher 	
   	
   	
   	
  Funding:	
  
Connie	
  Sung,	
  MPh 	
   	
   	
   	
  RO1	
  NINDS	
  4435-­‐06-­‐07	
  
Mayu	
  Fujikawa,	
  MS	
   	
   	
   	
  People	
  Against	
  Childhood	
  Epilepsy	
  
Michelle	
  Szomi 	
   	
   	
   	
  (PACE)	
  
Dace	
  Almane,	
  MS 	
   	
   	
   	
  1KL2RR025012-­‐01	
  
Kelly	
  Darby,	
  MS	
  
Kate	
  Young,	
  MS	
  
5/20/15	
  
44	
  
Gaston	
  Baslet,	
  M.D.	
  
Division	
  of	
  Neuropsychiatry	
  
Department	
  of	
  Psychiatry	
  
Brigham	
  and	
  Women’s	
  Hospital	
  
Harvard	
  Medical	
  School	
  
  I	
  have	
  no	
  conflicts	
  of	
  interest	
  to	
  disclose	
  
  I	
  will	
  be	
  discussing	
  off	
  label	
  use	
  of	
  
medications	
  
5/20/15	
  
45	
  
Psychogenic Non Epileptic Seizures are
paroxysmal episodes of altered consciousness,
movement, sensation or experience resembling
epileptic seizures, but not associated with ictal
electrical discharges in the brain or other
recognized physiological paroxysms	
  
  Most	
  common	
  condition	
  misdiagnosed	
  as	
  
epilepsy.	
  
  Average	
  of	
  7	
  years	
  until	
  correct	
  diagnosis	
  is	
  
made.	
  
  25-­‐33%	
  of	
  EMU	
  admissions	
  diagnosed	
  as	
  
PNES.1	
  
  12%	
  in	
  outpatient	
  Neurology	
  Clinics.2	
  
  Annual	
  incidence	
  in	
  Scotland	
  is	
  3-­‐5	
  per	
  
100,000	
  but	
  this	
  is	
  an	
  underestimate.3	
  
1. Reuber et al, Neurology, 2002; 2. Reuber, Epilepsy and Behavior, 2008;
3. Duncan et al, Epilepsy and Behavior, 2011.	
  
5/20/15	
  
46	
  
Neurologist	
   Psychiatrist	
  
Symptom	
   Presentation	
   Engagement	
   Acute	
  treatment	
  
	
  	
  	
  	
  	
  	
  	
  	
  	
  	
  	
  	
  Phase	
  
Long-­‐term	
  
Follow-­‐up	
  
Baslet et al, Clin EEG Neurosci, 2014
5/20/15	
  
47	
  
  A.	
  One	
  or	
  more	
  symptoms	
  of	
  altered	
  voluntary	
  motor	
  or	
  sensory	
  function.	
  
  B.	
  Clinical	
  findings	
  provide	
  evidence	
  of	
  incompatibility	
  between	
  the	
  
symptom	
  and	
  recognized	
  neurological	
  or	
  medical	
  conditions.	
  
  C.	
  The	
  symptom	
  or	
  deficit	
  is	
  not	
  explained	
  by	
  another	
  medical	
  or	
  mental	
  
disorder.	
  
  D.	
  The	
  symptom	
  or	
  deficit	
  causes	
  clinically	
  significant	
  distress	
  or	
  impairment	
  
in	
  social,	
  occupational,	
  or	
  other	
  important	
  areas	
  of	
  functioning	
  or	
  warrants	
  
medical	
  evaluation	
  
  Specifier:	
  with	
  weakness	
  or	
  paralysis,	
  with	
  abnormal	
  movement	
  (PMD),	
  with	
  
swallowing	
  symptoms,	
  with	
  speech	
  symptom,	
  with	
  attacks	
  or	
  seizures	
  
(PNES),	
  with	
  anesthesia	
  or	
  sensory	
  loss,	
  with	
  special	
  sensory	
  symptom,	
  with	
  
mixed	
  symptom.	
  
  Specifier:	
  acute	
  episode	
  (<	
  6	
  months),	
  persistent	
  (>	
  6	
  months).	
  
  Specifier:	
  with	
  psychological	
  stressor,	
  without	
  psychological	
  stressor.	
  
American Psychiatric Association, 2013
PNES: Psychogenic Non-Epileptic Seizures; PMD: Psychogenic Movement Disorder.
Levels	
  of	
  
Diagnostic	
  
Certainty	
  
History	
   Witnessed	
  event	
   EEG	
  
Possible	
   +	
   By	
  witness	
  or	
  self-­‐report/	
  
description	
  
No	
  epileptiform	
  activity	
  in	
  routine	
  or	
  sleep	
  
deprived	
  interictal	
  EEG	
  
Probable	
   +	
   By	
  clinician	
  who	
  reviewed	
  
video	
  recording	
  in	
  person,	
  
showing	
  semiology	
  typical	
  
of	
  PNES	
  
No	
  epileptiform	
  activity	
  in	
  routine	
  or	
  sleep	
  
deprived	
  interictal	
  EEG	
  
Clinically	
  
established	
  
+	
   By	
  clinician	
  experienced	
  in	
  
diagnosis	
  of	
  sz	
  disorders	
  
(on	
  video	
  or	
  in	
  person)	
  
showing	
  semiology	
  typical	
  
of	
  PNES	
  
No	
  epileptiform	
  activity	
  in	
  routine	
  or	
  ambulatory	
  
EEG	
  during	
  a	
  typical	
  ictus/	
  event	
  in	
  which	
  the	
  
semiology	
  would	
  make	
  ictal	
  epileptiform	
  EEG	
  
expectable	
  during	
  equivalent	
  epileptic	
  sz	
  
Documented	
   +	
   By	
  clinician	
  experienced	
  in	
  
diagnosis	
  of	
  sz	
  disorders,	
  
showing	
  semiology	
  typical	
  
of	
  PNES,	
  on	
  video	
  EEG	
  
No	
  epileptiform	
  activity	
  immediately	
  before,	
  
during	
  or	
  after	
  ictus	
  captured	
  on	
  ictal	
  video	
  EEG	
  
with	
  typical	
  PNES	
  semiology	
  
La	
  France	
  et	
  al,	
  Epilepsia,	
  2013	
  
5/20/15	
  
48	
  
Signs	
  that	
  favor	
  PNES	
   Evidence	
  from	
  primary	
  
studies	
  
Sensitivity	
  (%)	
  for	
  PNES	
   Specificity	
  (%)	
  for	
  ES	
  
Long	
  duration	
  
Fluctuating	
  course	
  
Asynchronous	
  movements	
  
Pelvic	
  thrusting	
  
Side-­‐to-­‐side	
  head	
  or	
  body	
  
movements	
  
Closed	
  eyes	
  
Ictal	
  crying	
  
Memory	
  recall	
  
Good	
  
Good	
  	
  
Good	
  (FLS	
  excluded)	
  
Good	
  (FLS	
  excluded)	
  
Good	
  (convulsive	
  events	
  
only)	
  
Good	
  
Good	
  
Good	
  
69	
  (events)	
  
47-­‐88	
  (patients)	
  
44-­‐96	
  (events)	
  
9-­‐56	
  (patients)	
  
1-­‐31	
  (events)	
  
7.4-­‐44	
  (patients)	
  
25-­‐63	
  (events)	
  
15-­‐36	
  (patients)	
  
34-­‐88	
  (events)	
  
52-­‐96	
  (patients)	
  
13-­‐14	
  (events)	
  
3.7-­‐37	
  (patients)	
  
63	
  (events)	
  
77-­‐88	
  (patients)	
  
96	
  
96-­‐100	
  
93-­‐96	
  
93-­‐100	
  
96-­‐100	
  
92-­‐100	
  
96-­‐100	
  
92-­‐100	
  
74-­‐100	
  
97	
  
100	
  
100	
  
96	
  
90	
  
Signs	
  that	
  favor	
  ES	
   Evidence	
  from	
  primary	
  
studies	
  
Sensitivity	
  for	
  ES	
   Specificity	
  for	
  ES	
  
Occurrence	
  from	
  EEG-­‐confirmed	
  
sleep	
  
Post-­‐ictal	
  confusion	
  
Stertorous	
  breathing	
  
Good	
  
Good	
  
Good	
  (convulsive	
  events	
  
only)	
  
31-­‐59	
  (events)	
  
-­‐	
  
61-­‐100	
  (events)	
  
67	
  (patients)	
  
61-­‐91	
  (events)	
  
100	
  
-­‐	
  
88	
  
84	
  
100	
  
Other	
  signs	
   Evidence	
  from	
  primary	
  studies	
  
Gradual	
  onset	
  
Non-­‐stereotyped	
  events	
  
Flailing	
  or	
  thrashing	
  movements	
  
Opisthotonus	
  
Tongue	
  biting	
  
Urinary	
  incontinence	
  
Insufficient	
  
Insufficient	
  
Insufficient	
  
Insufficient	
  
Insufficient	
  
Insufficient	
  
La	
  France	
  et	
  al,	
  Epilepsia,	
  2013	
  
PNES:	
  psychogenic	
  non-­‐epileptic	
  seizures	
  
ES:	
  epileptic	
  seizures	
  
Psychosocial	
  Factors	
  
Child/Adult	
  Trauma	
  
Family	
  Dysfunction	
  
Interpersonal	
  
communication	
  
Adverse	
  life	
  events	
  
Psychiatric	
  Conditions	
  
Depression,	
  Anxiety,	
  PTSD	
  
Somatoform	
  Disorders	
  
Dissociative	
  Disorders	
  
Personality	
  Disorders	
  
Substance	
  Abuse	
  
Eating	
  Disorders	
  
Neurological	
  Conditions	
  
Epilepsy	
  
Migraine	
  
Chronic	
  pain	
  
Head	
  Trauma	
  
Neuropsychological	
  Deficits/	
  
Vulnerability	
  Traits	
  
Avoidance	
  
Impulsivity	
  
Somatic	
  preoccupation	
  
Alexithymia	
  
Emotion	
  regulation	
  styles	
  
Limited	
  effort	
  
Suggestibility	
  ?	
  
PNES	
  
5/20/15	
  
49	
  
  As	
  a	
  psychiatrist,	
  you	
  can	
  establish	
  the	
  
diagnosis	
  of	
  PNES	
  after	
  carefully	
  reviewing	
  the	
  
exam	
  and	
  tests	
  that	
  confirm	
  incompatibility	
  
between	
  the	
  symptom	
  and	
  the	
  preserved	
  
physiological	
  functioning.	
  	
  
  Always	
  confer	
  with	
  a	
  neurologist.	
  
  Early	
  screening	
  for	
  risk	
  factors	
  can	
  help	
  you	
  
formulate	
  an	
  explanatory	
  model	
  for	
  the	
  patient.	
  
  There	
  is	
  growing	
  evidence	
  of	
  effective	
  
treatments	
  for	
  PNES,	
  mostly	
  based	
  on	
  
psychotherapeutic	
  interventions.	
  	
  
5/20/15	
  
50	
  
Symptom	
   Presentation	
   Engagement	
   Acute	
  treatment	
  
	
  	
  	
  	
  	
  	
  	
  	
  	
  	
  	
  	
  Phase	
  
Long-­‐term	
  
Follow-­‐up	
  
Baslet	
  et	
  al,	
  Clin	
  EEG	
  Neurosci,	
  2014	
  
MDD:	
  Major	
  Depressive	
  Disorder;	
  Kanner	
  et	
  al,	
  Neurology,	
  1999	
  
Class I, n = 13 Class II, n = 12 Class III, n = 20
Psychiatric variable n (%) n (%) n (%)
Recurrent MDD 1 (8) 2 (17) 14 (70)
Personality disorder 1 (8) 3 (25) 16 (80)
Chronic abuse 3 (23) 1 (8) 16 (80)
Denial of
psychosocial
problems
0 8 (75) 1 (5)
What	
  happens	
  after	
  	
  
an	
  acute	
  intervention	
  in	
  PNES?	
  
5/20/15	
  
51	
  
  Patient	
  filled	
  postal	
  questionnaire	
  (n=164)	
  
  4.1	
  years	
  post-­‐PNES	
  diagnosis	
  
  71%	
  of	
  patients	
  continue	
  to	
  be	
  symptomatic.1	
  
  Complaint	
  at	
  doctor’s	
  visit	
  over	
  6	
  months	
  
(n=167)	
  
  5-­‐10	
  years	
  post-­‐PNES	
  diagnosis	
  
  26%	
  of	
  patients	
  continue	
  to	
  complain	
  of	
  
seizures.	
  
  Significant	
  reduction	
  in	
  ED	
  visits	
  and	
  AED	
  
prescription,	
  but	
  not	
  in	
  employment	
  rates.2	
  
1.  Reuber	
  et	
  al,	
  Annals	
  of	
  Neurology,	
  2003	
  
2.  Duncan	
  et	
  al,	
  JNNP,	
  2014	
  	
  	
  	
  
  There	
  is	
  a	
  variety	
  of	
  outcome	
  patterns	
  in	
  
PNES	
  patients.	
  
  Identifying	
  subgroups	
  of	
  patients	
  with	
  
different	
  outcomes	
  may	
  help	
  customize	
  
treatment	
  protocols	
  for	
  subpopulations	
  and	
  
improve	
  overall	
  functional	
  outcomes.	
  
5/20/15	
  
52	
  
APA 2015
5/20/15	
  
53	
  
5/20/15	
  
54	
  
5/20/15	
  
55	
  
Falcone et al Psychiatric comorbidities in patients undergoing epilepsy
surgery- AES 2009
5/20/15	
  
56	
  
EXAMPLE OF SEIZURE DRAWING THAT DEPICTS THE THEME OF
HELPLESSNESS OR DEPRESSION
10-year-old boy with complex partial seizures depicts himself inside a coffin, screaming,
‘‘Let me out!’’
5/20/15	
  
57	
  
16-year-old boy with left temporal lobe epilepsy and generalized tonic–clonic seizures.
5/20/15	
  
58	
  
Make sure that you listen,
make sure that you care,
make sure
you are watching —
something’s always there.
Adwoa Boakye
Release
Emily Good
5/20/15	
  
59	
  
QOL
Seizures
Ability to
Think
And
Remember
Neuro and
Physical
Limitations
Inattention
and Mood
5/20/15	
  
60	
  
http://www.expressionsofcourage.com/gallery/displayAction.do?id=270

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Apa workshop 05.20.15 what every psychiatrist needs to know about epilepsy

  • 1. 5/20/15   1   New Anti-Seizure Medications Elia M Pestana Knight, MD Cleveland Clinic Epilepsy Center Nothing to disclose
  • 2. 5/20/15   2   Topics for this lecture   Antiepileptic Drugs   What are antiepileptic drugs?   Historical development of the drugs   How doctors select the drugs to treat the seizures?   Common side effect   Drug interactions   A case for the need of Epilepsy and Psychiatry team interaction Antiepileptic Drugs
  • 3. 5/20/15   3   What are antiepileptic drugs?   Antiepileptic drugs (AEDs)   Anticonvulsant medications   Antiseizure medications
  • 4. 5/20/15   4   Antiseizure medications   Drugs that decrease the frequency and/or severity of seizures in people with epilepsy   Treat the symptom of seizures, not the underlying epileptic condition   They don’t change the course of the disease Antiepileptic drugs   Drugs that prevent the development of recurrent seizures in people at risk   Drugs that reduce seizure frequency and severity outlasting the treatment period   Example: after head trauma, stroke, brain tumors, etc.   Animal studies suggest that Levetiracetam and Ethosuximide are potential antiepileptic drugs BUT there are no studies in humans to support this
  • 5. 5/20/15   5   Use of antiseizure medications   Epilepsy   Pain treatment   Neuralgias, neuropathic pain, etc.   Migraine prophylaxis   Treatment of bipolar disorder, mood disorder and anxiety Historical development of the drugs
  • 6. 5/20/15   6   History of AEDs in the U.S.   1857 – Bromides   1882 – Paraldehyde (not longer in use in USA)   1912 – Phenobarbital (PB)   1937 – Phenytoin (PHT)   1944 – Trimethodione   1953 – Acetazolamide   1954 - Primidone   1960 – Ethosuximide   1963 - Diazepam   1974 – Carbamazepine (CBZ)   1972 – Clorazepate and Lorazepam   1975 – Clonazepam (CZP)   1978 – Valproate (VPA) New AEDs in the U.S.   1993 – Felbamate (FBM), gabapentin (GBP)   1995 – Lamotrigine (LTG)   1996 – Fosphenytoin   1997 – Topiramate (TPM), tiagabine (TGB)   1999 – Levetiracetam (LEV)   2000 – Oxcarbazepine (OXCBZ), zonisamide (ZNS)   2005 - Pregabalin (PGB)
  • 7. 5/20/15   7   Newer Drugs   2008 – Lacosamide (Vimpat)   2008 – Rufinamide (Banzel)   2009 – Vigabatrin (Sabril)   2011 – Ezogabine (Potiga) and Clobazam (Onfi)   2012 – Perampanel (Fycompa)   When? – CBD oil – IF ….. No FDA approved AEDs   Bromides (1857)   Sulthiame   Stiripentol (2001)
  • 8. 5/20/15   8   Other treatments, diet and devices   Sex hormones: Progesterone   Diets: Ketogenic diet, Low glycemic diet, modified Atkins diet   Devices: Vagus Nerve Stimulator (VNS) and Neuropace   Epilepsy Surgery How doctors select the drugs to treat the seizures?
  • 9. 5/20/15   9   Selecting the AEDs   Seizure types or syndrome   Rational polytherapy   Age of the patient (oral suspension, chewable, sprinkles for children)   Dosing schedule   Comorbidities and other medical conditions   Potential side effects and toxicity   Interaction with other drugs   Cost-effectiveness Goals of treatment   Reduced number of seizures   Minimal adverse events or side effects   Best quality of life possible
  • 10. 5/20/15   10   Common side effects Adverse Effects  Acute dose-related: reversible  Idiosyncratic   Uncommon - rare   Potentially serious or life threatening  Chronic: reversibility and seriousness vary
  • 11. 5/20/15   11   Acute - Dose-Related Adverse Effects of AEDs  Neurologic/psychiatric: most common •  Sedation, fatigue -  All AEDs, except unusual with LTG and FBM -  More pronounced with traditional AED •  Unsteadiness, poor coordination, dizziness -  Mainly traditional AEDs -  May be sign of toxicity with many AEDs •  Tremor – valproate •  Depression ???? Acute, Dose-Related Adverse Effects of AEDs (cont.) •  Parenthesis (topiramate, zonisamide) •  Diplopia, blurred vision, visual distortion (carbamazepine, lamotrigine) •  Mental/motor slowing or impairment (topiramate at higher doses) •  Mood or behavioral changes (levetiracetam) •  Changes in libido or sexual function (carbamazepine, phenytoin, phenobarbital)
  • 12. 5/20/15   12   Acute, Dose-Related Adverse Effects of AEDs (cont.)  Gastrointestinal (nausea, heartburn)  Mild to moderate laboratory changes •  Hyponatremia: carbamazepine, oxcarbazepine •  Increases in ALT or AST: valproate •  Leukopenia: •  Thrombocytopenia: valproate P-Slide 23 Acute, Dose-Related Adverse Effects of AEDs (cont.)  Weight gain/appetite changes   Valproic acid   Gabapentin   Pregabalin  Weight loss   Topiramate   Zonisamide   Felbamate P-Slide 24
  • 13. 5/20/15   13   Idiosyncratic Adverse Effects of AEDs  Toxic Epidermal necrolysis  Stevens-Johnson syndrome   More common in lamotrigine, patients receiving valproate and/ or aggressively titrated. Signs of potential Stevens-Johnson syndrome   Hepatic damage   Early symptoms: abdominal pain, vomiting, jaundice   Laboratory monitoring probably not helpful in early detection   Patient education   Fever and mucus membrane involvement HLA-B 1502 and AED induced rash   Racial groups: Han Chinese and other South East Asian groups   Drugs: Carbamazepine, Oxcarbazepine, Phenytoin, Fosphenytoin   US FDA recommendations:   Genotypic all Asian descend patients before therapy   (Ferrell and McLeod. Pharmacogenomics 2008)
  • 14. 5/20/15   14   AED Hypersensitivity Syndrome  Characterized by rash, systemic involvement hydrolase  Cross-reactivity   Phenytoin   Carbamazepine   Phenobarbital   Oxcarbazepine  Relative cross reactivity - lamotrigine Idiosyncratic Adverse Effects of AEDs  Hematologic damage  Marrow aplasia, agranulocytosis, aplastic anemia  Early symptoms: abnormal bleeding, acute onset of fever, symptoms of anemia  Laboratory monitoring probably not helpful in early detection  Felbamate aplastic anemia approx. 1:5,000 treated patients  Patient education
  • 15. 5/20/15   15   Other idiosyncratic reactions   Serum sickness   Pancreatitis Long-Term Adverse Effects of AEDs  Endocrine/Metabolic Effects •  Osteomalacia, osteoporosis •  Carbamazepine •  Phenobarbital •  Phenytoin •  Oxcarbazepine •  Topiramate •  Valproate •  Zonisamide •  Folate (anemia, teratogenesis) •  Phenobarbital •  Phenytoin •  Carbamazepine •  Valproate •  Lamotrigine •  Topiramate •  Altered connective tissue metabolism or growth (facial coarsening, hirsutism, gingival hyperplasia or contractures) •  Phenytoin •  Phenobarbital  Neurologic •  Neuropathy •  Cerebellar syndrome - phenytoin  Sexual Dysfunction - 30-60% •  Phenytoin •  Carbamazepine •  Phenobarbital •  Primidone
  • 16. 5/20/15   16   Drug interactions Pharmacokinetic Interactions Be aware that drug interactions may occur when there is the:   Addition of a new medication when an inducer/ inhibitor is present.   Addition of inducer/inhibitor to an existing medication regimen.   Removal of an inducer/inhibitor from chronic medication regimen.
  • 17. 5/20/15   17   Hepatic Drug Metabolizing Enzymes and Specific AED Interactions  Phenytoin: CYP2C9/CYP2C19   Inhibitors: valproate, ticlopidine, fluoxetine, topiramate, fluconazole  Carbamazepine: CYP3A4/CYP2C8/CYP1A2   Inhibitors: ketoconazole, fluconazole, erythromycin, diltiazem  Lamotrigine: UGT 1A4   Inhibitor: valproate   Important note about oral contraceptives (OCPs):   OCP efficacy is decreased by inducers,   including: phenytoin, phenobarbital, primidone, carbamazepine; and higher doses of topiramate and oxcarbazepine   OCPs and pregnancy significantly decrease serum levels of lamotrigine. Potent inducers   Carbamazepine, Phenobarbital, Phenytoin   Effect of induction is seen within the first 3 weeks of treatment   Caution when prescribing Bupropion, Quetiapine, etc   Definitively have a significant effect over the metabolism of   Sex hormones   Vitamin D   Thyroid hormones   Lipid metabolism   Folic acid
  • 18. 5/20/15   18   Mild inducers   Clobazam, eslicarbazepine, felbamate, lamotrigine, oxcarbazepine, rufinamide, topiramate, vigabatrin, and vaproic acid   Can be inducers at higher doses   Sometime have combined inhibitor effects   It can take months before the maximum effect is seen   Effect on systemic metabolism is present at a lesser degree AEDs and Drug Interactions  Although many AEDs can cause pharmacokinetic interactions, several agents appear to be less problematic.  AEDs that do not appear to be either inducers or inhibitors of the CYP system include: Gabapentin Lamotrigine (low dose) Pregabalin Tiagabine Levetiracetam Zonisamide P-Slide 36
  • 19. 5/20/15   19   AEDs and Foods   Grapefruit juice A case for the need of Epilepsy and Psychiatry team interaction
  • 20. 5/20/15   20   Case 1. Marcella   15 years old   left handed female   refractory right parieto-occipital epilepsy status post partial right occipital cortical resection at age 13 years   seizure-free for a month   Seizures recurred Past Antiepileptic Medications   Carbamazepine, Lamotrigine, Zonisamide Current Antiepileptic Medications •  Keppra 2,000 mg bid •  Trileptal 1,200 mg bid •  Other Meds: Prozac, Folic acid, multivitamin, Vitamin D
  • 21. 5/20/15   21   Seizure onset T8P8 P8O2 Fp1F3 F3C3 C3P3 P3O1 Fp2F4 F4C4 C4P4 P4O2 Ictal onset : P8, O2 Pre-op MRI
  • 22. 5/20/15   22   Pre-op PET Pre-op Neuropsychological Evaluation   Report :   Full scale IQ=77(6th%-borderline)   Verbal scale=78(7th%-borderline)   Performance scale=81(10th%-borderline)   Visual immediate memory=109(73rd%-high average)   Visual delayed memory=103(58th%average to high average)   Verbal immediate memory=69(2nd%-low average to poor)   Verbal delayed memory=72(3rd%-low average to poor)
  • 23. 5/20/15   23   Her Medical Comorbidities   Morbid Obesity   Weight = 145 kg = 319 lbs   Mild to Moderate Asthma   Obstructive Sleep Apnea Her Neuropsychiatric Comorbidities   Depression   treated with Prozac 10mg   suicidal ideation   Anxiety   not treated   Migraine without aura   chronic daily headaches   Learning disability   in need of IEP   home schooled   Epilepsy stigma   bullying at school   poor peer acceptance
  • 24. 5/20/15   24   Anesthesiologist Sleep Medicine Pulmonologist Endocrinologist Neurosurgeon Epileptologist Psychiatrist Pediatrician Child and Family The Knowledge Program   Developed at the Cleveland Clinic   Screening tool for neuropsychiatry comorbidities   Katzan I et al. 2011
  • 25. 5/20/15   25   Take home points   Antiseizure medications are prescribed taking into account a number of factors   Keep in mind drug drug interaction when prescribing antiseizure medications   A multidisciplinary team, that includes a Psychiatrist, is a very important part of the care for patients with epilepsy QUESTIONS
  • 26. 5/20/15   26   Jana E. Jones, PhD Associate Professor Department of Neurology University of Wisconsin School of Medicine & Public Health May 20, 2015 Anxiety Disorders in Epilepsy Outline 1. Anxiety & Adults with Epilepsy 2. Anxiety & Children with Epilepsy 3. Anxiety & Quality of Life 3. Treatment Options 4. Conclusions
  • 27. 5/20/15   27   •  15%  to  25%  Community  prevalence.   •  16%  to  25%  Hospital  prevalence.   •  11%  to  32%  prevalence  among  surgery   candidates. Vazquez & Devinsky, 2003 DSM/ICD  Based  Diagnoses   Victoroff  (1994)        32%   Manachanda  et  al.  (1996)      11%   Perini    et  al.  (1996)        16%   Altschuler  et  al.  (1999)          5%   Glosser  et  al.  (2000)        22%   Swinkles  et  al.  (2001)        25%   Jones  et  al.  (2007)          35%   Tellez-­‐Zenteno  et  al.  (2007)      22%   Brandt  et  al.  (2010)        20%   Kanner  et  al.  (2010)        15%   Mean = 20% Median = 21%
  • 29. 5/20/15   29   • A large number of participants have more than one diagnosis (n=59). (Jones et al., 2005)
  • 30. 5/20/15   30   Anxiety  in  Pediatric  Epilepsy   Observational Studies Authors Measure Outcome in epilepsy __________________________________________________________ Ettinger et al. (1998) RCMAS 16% elevated anxiety Williams et al. (2003) RCMAS 23% elevated anxiety Baki et al. (2004) STAI 49% mild to mod. Anxiety Vega et al. (2011) BASC 30% elevated anxiety __________________________________________________________
  • 31. 5/20/15   31   Controlled Studies Authors Measure Outcome _____________________________________________________ Oguz et al. (2002) STAI High state & trait anxiety Baker et al. (2005) SADS/LOI High social anxiety & obsessive symptoms Loney et al. (2008) RCMAS Elevated anxiety _____________________________________________________ DSM  based  studies                                                    Anxiety  Disorders       Alwash  et  al.  (2000)        48.5%   OM  et  al.  (2001)        13.0%   Adewuya  &  Ola  (2005)      31.4%   Caplan  et  al.  (2005)        36.0%     Jones  et  al.  (2007)        35.8%  
  • 32. 5/20/15   32   New Onset Sample •  Children  with  new-­‐onset  epilepsy  (n  =  180)  and  healthy   first-­‐degree  cousin  controls  (n  =  107).   •  Study  parVcipants  were  recruited  from  pediatric   neurology  clinics  at  two  large  Midwestern  medical  centers.   •  Children  with  epilepsy  were  included:        (1)  diagnosis  of  epilepsy  within  the  past  12  months        (2)  chronological  age  between  8–18  years        (3)  no  other  developmental  disabiliVes  (e.g.  auVsm,    intellectual  disability)      (4)  no  other  neurological  disorder  and  normal  clinical          MRI.   •  Children  and  parents  parVcipated  in  a  structured   psychiatric  interview  (K-­‐SADS)  at  baseline.     Prevalence  of  Current  Anxiety  Disorders  at  Baseline Epilepsy   (n=180) Control   (n=107) Any  Axis  I  Disorder 113  (62.8%) 28  (26.2%) Any  Anxiety  Disorder  70  (38.9%) 19  (17.8%) Specific  Phobia      36  (20.0%) 11  (10.3%) Social  Phobia     16  (8.9%) 1  (1.0%) SeparaTon  Anxiety     13  (7.2%) 0 Generalized  Anxiety  Disorder     15  (8.3%) 5  (4.7%) Anxiety  NOS     15  (8.3%) 6  (5.6%) Number  of  Anxiety  Disorders Single  Anxiety  Disorder 48  (68.6%) 15  (78.9%) Two  or  More  Anxiety  Disorders 22  (31.4%)  4  (21.1%) 1  No  cases  of  Agoraphobia  and  Panic   Disorders
  • 33. 5/20/15   33   0   2   4   6   8   10   12   14   16   18   20   22   24   Specific  Phobia   Social  Phobia   SeparaVon  Anxiety   Prevalence  (percent)   Median  Age  of  Onset  (years)   Common anxiety disorders in childhood: Prevalence and age of onset (Kessler et al., 2012) New  Onset  Epilepsy  with  &  without   Anxiety  
  • 34. 5/20/15   34   Jones et al., 2015 Jones et al., 2015
  • 35. 5/20/15   35   Jones et al., 2015 Jones et al., 2015
  • 36. 5/20/15   36   MRI Findings   •  Anxiety is a common psychiatric comorbidity in children with recent-onset epilepsy. •  Potential neuroanatomical substrate consisting of volumetric enlargement of the amygdala. Daley et al. (2008) reported a similar finding. •  Thinner cortex in orbital and other regions of prefrontal cortex. MRI findings •  There are abnormalities in brain structures that are involved in the networks found in individuals with anxiety disorders in the general population. •  These anatomic findings: – are evident early in the course of epilepsy. – are not related to chronicity of seizures. – are linked to a family history of anxiety and depressive disorders.
  • 37. 5/20/15   37   2 Year Follow-up •  Children with epilepsy returned for follow- up 2 years after their baseline evaluation. •  Healthy controls also returned. •  The KSADS was repeated with child and parent separately. Jones et al. (2015) Jones et al., in progress
  • 38. 5/20/15   38   In  epilepsy,  suicide  aMempters  had  elevated   anxiety  compared  to  those  with  no  history   of  suicide  aMempts.         Batzell  &  Dodrill  (1986)   •  At  Baseline:       –  42%  children  with  epilepsy  and  anxiety  had  suicidal  thoughts.       –  45%  children  with  epilepsy  and  no  anxiety.     •  At  Follow-­‐up:     –  21%  children  with  epilepsy  and  anxiety  had  suicidal  thoughts.     –  34%  children  with  epilepsy  and  no  anxiety.     •  Suicidal  thoughts  are  common  in  children  with  epilepsy   and  anxiety.   •  Suicidal  thoughts  are  also  quite  common  in  children  with   epilepsy  without  anxiety.    
  • 39. 5/20/15   39   Poorer HRQOL is significantly associated with increased symptoms of anxiety. Proportion of variance in HRQOL accounted for by demographic, clinical epilepsy and anxiety variables.
  • 40. 5/20/15   40   Treatment Recommendations •  No  randomized  controlled  trials  for  the   treatment  of  anxiety  disorders  in  children  or   adults  with  epilepsy,  including   pharmacological  and  nonpharmacological   intervenVons.     •  Very  lidle  evidence  regarding  specific  pracVce   parameters  for  the  treatment  anxiety   disorders  in  adults  or  children.     Baseline: KSADS interview Questionnaires 3-month follow up: Booster session Parent Meeting Questionnaires Level 7: Begin Exposure Tasks Parent Meeting Questionnaires Level 2: Physical signs of anxiety Level 1: CBT & anxiety Parent Meeting Level 12: Exposure Tasks Parent Meeting Questionnaires Levels 8-11: Exposure Tasks Level 3: Relaxation Parent Meeting Levels 4-6: Anxious thoughts, coping thoughts, problem solving, & self-reward Skill Building Phase Skill Practice Phase Camp Cope-A-Lot Intervention Outline (Khanna & Kendall, 2008)
  • 41. 5/20/15   41   (Blocher et al., 2013)r (Jones et al., 2014) al Piers-Harris-2 at baseline, week 7, 12 and 3 months
  • 42. 5/20/15   42   Pharmacological Treatment •  There are no randomized controlled trials of the use of SSRIs in the treatment of anxiety disorders in adults or children with epilepsy. •  There is evidence to suggest that seizure frequency is not adversely impacted by the introduction of SSRIs. •  Anxiety  is  common  in  adults  and  children   with  epilepsy.   •  There  are  potenTal  neuroanatomical   substrates  idenTfied  in  children  with  epilepsy   similar  to  those  reported  in  the  general   populaTon.     •  Anxiety  has  a  negaTve  impact  on  overall   QOL.   •  Anxiety  is  frequently  under  recognized  and   under  treated.    
  • 43. 5/20/15   43   •  Only  1/3  of  children  with  epilepsy  and  mental   health  problems  receive  treatment  (OM  et  al.,   2001).   •  Parents  report  that  emoTonal  and  behavioral   problems  are  very  concerning  to  them  (Wu  et   al.,  2008).   •  Neurologists  &  pediatricians  who  treat  children   with  epilepsy  feel  there  is  a  resistance  on  the   part  of  mental  health  providers  to  treat   children  with  epilepsy  (Smith  et  al.,  2007).   Acknowledgements   University  of  Wisconsin      UCLA   Bruce  P.  Hermann,  PhD      Rochelle  Caplan,  MD   Carl  Stafstrom,  MD,  PhD   David  Hsu,  MD,  PhD      Mayo/Nemours  Children’s  Hospital   Fred  Edelman,  MD        Raj  Sheth,  MD   Lucy  Zawadzki,  MD   Chris  Ikonomidou,    MD      Rosalind  Franklin  University   Daren  Jackson,  PhD        Michael  Seidenberg,  PhD     Kevin  Dabbs,  MS             Jacque  Blocher        Funding:   Connie  Sung,  MPh        RO1  NINDS  4435-­‐06-­‐07   Mayu  Fujikawa,  MS        People  Against  Childhood  Epilepsy   Michelle  Szomi        (PACE)   Dace  Almane,  MS        1KL2RR025012-­‐01   Kelly  Darby,  MS   Kate  Young,  MS  
  • 44. 5/20/15   44   Gaston  Baslet,  M.D.   Division  of  Neuropsychiatry   Department  of  Psychiatry   Brigham  and  Women’s  Hospital   Harvard  Medical  School     I  have  no  conflicts  of  interest  to  disclose     I  will  be  discussing  off  label  use  of   medications  
  • 45. 5/20/15   45   Psychogenic Non Epileptic Seizures are paroxysmal episodes of altered consciousness, movement, sensation or experience resembling epileptic seizures, but not associated with ictal electrical discharges in the brain or other recognized physiological paroxysms     Most  common  condition  misdiagnosed  as   epilepsy.     Average  of  7  years  until  correct  diagnosis  is   made.     25-­‐33%  of  EMU  admissions  diagnosed  as   PNES.1     12%  in  outpatient  Neurology  Clinics.2     Annual  incidence  in  Scotland  is  3-­‐5  per   100,000  but  this  is  an  underestimate.3   1. Reuber et al, Neurology, 2002; 2. Reuber, Epilepsy and Behavior, 2008; 3. Duncan et al, Epilepsy and Behavior, 2011.  
  • 46. 5/20/15   46   Neurologist   Psychiatrist   Symptom   Presentation   Engagement   Acute  treatment                          Phase   Long-­‐term   Follow-­‐up   Baslet et al, Clin EEG Neurosci, 2014
  • 47. 5/20/15   47     A.  One  or  more  symptoms  of  altered  voluntary  motor  or  sensory  function.     B.  Clinical  findings  provide  evidence  of  incompatibility  between  the   symptom  and  recognized  neurological  or  medical  conditions.     C.  The  symptom  or  deficit  is  not  explained  by  another  medical  or  mental   disorder.     D.  The  symptom  or  deficit  causes  clinically  significant  distress  or  impairment   in  social,  occupational,  or  other  important  areas  of  functioning  or  warrants   medical  evaluation     Specifier:  with  weakness  or  paralysis,  with  abnormal  movement  (PMD),  with   swallowing  symptoms,  with  speech  symptom,  with  attacks  or  seizures   (PNES),  with  anesthesia  or  sensory  loss,  with  special  sensory  symptom,  with   mixed  symptom.     Specifier:  acute  episode  (<  6  months),  persistent  (>  6  months).     Specifier:  with  psychological  stressor,  without  psychological  stressor.   American Psychiatric Association, 2013 PNES: Psychogenic Non-Epileptic Seizures; PMD: Psychogenic Movement Disorder. Levels  of   Diagnostic   Certainty   History   Witnessed  event   EEG   Possible   +   By  witness  or  self-­‐report/   description   No  epileptiform  activity  in  routine  or  sleep   deprived  interictal  EEG   Probable   +   By  clinician  who  reviewed   video  recording  in  person,   showing  semiology  typical   of  PNES   No  epileptiform  activity  in  routine  or  sleep   deprived  interictal  EEG   Clinically   established   +   By  clinician  experienced  in   diagnosis  of  sz  disorders   (on  video  or  in  person)   showing  semiology  typical   of  PNES   No  epileptiform  activity  in  routine  or  ambulatory   EEG  during  a  typical  ictus/  event  in  which  the   semiology  would  make  ictal  epileptiform  EEG   expectable  during  equivalent  epileptic  sz   Documented   +   By  clinician  experienced  in   diagnosis  of  sz  disorders,   showing  semiology  typical   of  PNES,  on  video  EEG   No  epileptiform  activity  immediately  before,   during  or  after  ictus  captured  on  ictal  video  EEG   with  typical  PNES  semiology   La  France  et  al,  Epilepsia,  2013  
  • 48. 5/20/15   48   Signs  that  favor  PNES   Evidence  from  primary   studies   Sensitivity  (%)  for  PNES   Specificity  (%)  for  ES   Long  duration   Fluctuating  course   Asynchronous  movements   Pelvic  thrusting   Side-­‐to-­‐side  head  or  body   movements   Closed  eyes   Ictal  crying   Memory  recall   Good   Good     Good  (FLS  excluded)   Good  (FLS  excluded)   Good  (convulsive  events   only)   Good   Good   Good   69  (events)   47-­‐88  (patients)   44-­‐96  (events)   9-­‐56  (patients)   1-­‐31  (events)   7.4-­‐44  (patients)   25-­‐63  (events)   15-­‐36  (patients)   34-­‐88  (events)   52-­‐96  (patients)   13-­‐14  (events)   3.7-­‐37  (patients)   63  (events)   77-­‐88  (patients)   96   96-­‐100   93-­‐96   93-­‐100   96-­‐100   92-­‐100   96-­‐100   92-­‐100   74-­‐100   97   100   100   96   90   Signs  that  favor  ES   Evidence  from  primary   studies   Sensitivity  for  ES   Specificity  for  ES   Occurrence  from  EEG-­‐confirmed   sleep   Post-­‐ictal  confusion   Stertorous  breathing   Good   Good   Good  (convulsive  events   only)   31-­‐59  (events)   -­‐   61-­‐100  (events)   67  (patients)   61-­‐91  (events)   100   -­‐   88   84   100   Other  signs   Evidence  from  primary  studies   Gradual  onset   Non-­‐stereotyped  events   Flailing  or  thrashing  movements   Opisthotonus   Tongue  biting   Urinary  incontinence   Insufficient   Insufficient   Insufficient   Insufficient   Insufficient   Insufficient   La  France  et  al,  Epilepsia,  2013   PNES:  psychogenic  non-­‐epileptic  seizures   ES:  epileptic  seizures   Psychosocial  Factors   Child/Adult  Trauma   Family  Dysfunction   Interpersonal   communication   Adverse  life  events   Psychiatric  Conditions   Depression,  Anxiety,  PTSD   Somatoform  Disorders   Dissociative  Disorders   Personality  Disorders   Substance  Abuse   Eating  Disorders   Neurological  Conditions   Epilepsy   Migraine   Chronic  pain   Head  Trauma   Neuropsychological  Deficits/   Vulnerability  Traits   Avoidance   Impulsivity   Somatic  preoccupation   Alexithymia   Emotion  regulation  styles   Limited  effort   Suggestibility  ?   PNES  
  • 49. 5/20/15   49     As  a  psychiatrist,  you  can  establish  the   diagnosis  of  PNES  after  carefully  reviewing  the   exam  and  tests  that  confirm  incompatibility   between  the  symptom  and  the  preserved   physiological  functioning.       Always  confer  with  a  neurologist.     Early  screening  for  risk  factors  can  help  you   formulate  an  explanatory  model  for  the  patient.     There  is  growing  evidence  of  effective   treatments  for  PNES,  mostly  based  on   psychotherapeutic  interventions.    
  • 50. 5/20/15   50   Symptom   Presentation   Engagement   Acute  treatment                          Phase   Long-­‐term   Follow-­‐up   Baslet  et  al,  Clin  EEG  Neurosci,  2014   MDD:  Major  Depressive  Disorder;  Kanner  et  al,  Neurology,  1999   Class I, n = 13 Class II, n = 12 Class III, n = 20 Psychiatric variable n (%) n (%) n (%) Recurrent MDD 1 (8) 2 (17) 14 (70) Personality disorder 1 (8) 3 (25) 16 (80) Chronic abuse 3 (23) 1 (8) 16 (80) Denial of psychosocial problems 0 8 (75) 1 (5) What  happens  after     an  acute  intervention  in  PNES?  
  • 51. 5/20/15   51     Patient  filled  postal  questionnaire  (n=164)     4.1  years  post-­‐PNES  diagnosis     71%  of  patients  continue  to  be  symptomatic.1     Complaint  at  doctor’s  visit  over  6  months   (n=167)     5-­‐10  years  post-­‐PNES  diagnosis     26%  of  patients  continue  to  complain  of   seizures.     Significant  reduction  in  ED  visits  and  AED   prescription,  but  not  in  employment  rates.2   1.  Reuber  et  al,  Annals  of  Neurology,  2003   2.  Duncan  et  al,  JNNP,  2014           There  is  a  variety  of  outcome  patterns  in   PNES  patients.     Identifying  subgroups  of  patients  with   different  outcomes  may  help  customize   treatment  protocols  for  subpopulations  and   improve  overall  functional  outcomes.  
  • 55. 5/20/15   55   Falcone et al Psychiatric comorbidities in patients undergoing epilepsy surgery- AES 2009
  • 56. 5/20/15   56   EXAMPLE OF SEIZURE DRAWING THAT DEPICTS THE THEME OF HELPLESSNESS OR DEPRESSION 10-year-old boy with complex partial seizures depicts himself inside a coffin, screaming, ‘‘Let me out!’’
  • 57. 5/20/15   57   16-year-old boy with left temporal lobe epilepsy and generalized tonic–clonic seizures.
  • 58. 5/20/15   58   Make sure that you listen, make sure that you care, make sure you are watching — something’s always there. Adwoa Boakye Release Emily Good
  • 59. 5/20/15   59   QOL Seizures Ability to Think And Remember Neuro and Physical Limitations Inattention and Mood