Parkinson's disease is a progressive nervous system disorder that affects movement. Symptoms start gradually, sometimes starting with a barely noticeable tremor in just one hand. Tremors are common, but the disorder also commonly causes stiffness or slowing of movement
Dystonia is a movement disorder in which a person's muscles contract uncontrollably. The contraction causes the affected body part to twist involuntarily, resulting in repetitive movements or abnormal postures. Dystonia can affect one muscle, a muscle group, or the entire body.
parkinson's disease by me ..........prakash mahala p.g. medical surgical nursing at himalayan college of nursing dehradun.......prakashjpmmahala@gmail.com
Parkinson's Disease, SYMPTOMS OF PARKINSONISM, STAGES OF PARKINSONISM, ETIOLOGY OF PARKINSONISM, PATHOPHYSIOLOGY OF PARKINSONISM, TREATMENT OF PARKINSONISM.
Parkinson's disease is a progressive nervous system disorder that affects movement. Symptoms start gradually, sometimes starting with a barely noticeable tremor in just one hand. Tremors are common, but the disorder also commonly causes stiffness or slowing of movement
Dystonia is a movement disorder in which a person's muscles contract uncontrollably. The contraction causes the affected body part to twist involuntarily, resulting in repetitive movements or abnormal postures. Dystonia can affect one muscle, a muscle group, or the entire body.
parkinson's disease by me ..........prakash mahala p.g. medical surgical nursing at himalayan college of nursing dehradun.......prakashjpmmahala@gmail.com
Parkinson's Disease, SYMPTOMS OF PARKINSONISM, STAGES OF PARKINSONISM, ETIOLOGY OF PARKINSONISM, PATHOPHYSIOLOGY OF PARKINSONISM, TREATMENT OF PARKINSONISM.
It may contain a brief intoduction of disease, etiology, types of parkinson disease, clinical findings, dignosis, pathophysiology, treatment, drug classification and their mechanisms of actions.
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Parkinsonism
1.
2.
3. Parkinson’s disease is a progressive
neurodegenerative disorder that results in
deterioration of neurons in basal ganglia.
4. EPIDEMIOLOGY
Incidence
=
0.2 / 1000
Prevalence
=
1.5 / 1000
The incidence and prevalence both increase
with age.
Sex incidence is almost equal.
It is less common in smokers.
5. Typical Age of Onset
Average age of onset is 60 yrs.
5-10% of cases occur under the age of 40.
Referred to as Young-Onset Parkinson
Disease.
Rarely seen under age 30.
6. Famous Faces of Parkinson
Michael J. Fox
Katharine Hepburn
Muhammad Ali
Mao Tse Tung
Pope John Paul II
Johnny Cash
7. Etiology
Parkinson’s disease is referred to as
idiopathic (unknown cause).
Genetic link is seen in a small number of
Parkinsons cases.
Larger genetic link is found in youngonset Parkinsons disease.
MPTP cause severe parkinsonism in
young drug users
8. Risk factors
Positive family history
Male gender
Head injury
Exposure to pesticide
Consumption of well water
Rural living
9.
10. Factors which decrease incidence of
PD
Smoking
Coffee drinking
Use of NSAIDS
Estrogen replacement in postmenopausal
women
13. Parkinsonism plus syndrome
Features of parkinsonism associated with
complex clinical presentation
Failure to respond to treatment
Worse prognosis
Examples include :
1. Shy Dragger syndrome
2. Steel Richardson syndrome
3. Parkinsonism-dementia plus
14. PATHOLOGY
There is depletion of pigmented
dopaminergic neurons in the substantia
nigra, atrophic changes in substantia nigra
and depletion of neurons in locus
coeruleus.
15.
16. PATHOLOGY
Reduced dopaminergic output from the
substantia nigra to globus pallidus leads to
reduced inhibitory effect on subthalamic
nucleus, neurons of which become more
active in inhibiting activation of cortex
resulting in bradykinesia.
19. Head bent forward
Tremors of head
Maslike facial expression
Drooling
Rigidity
Stooped posture
Weight loss
Akinesia
tremors
Loss of postural
reflexes
Propulsive gait
CLINICAL FEATURES
20. General Features
Expressionless face (mask like)
Greasy skin
Soft rapid indistinct speech, monotonous
Glabellar tap sign / Myersons sign
Flexed posture
Impaired postural reflexes
21. Gait
Slow to start walking
Shortened stride
Rapid small steps tendency to turn en bloc
Reduced arm swing
Impaired balance on turning
25. Hoehn & Yahr Scale
Stage I: Unilateral involvement only, usually with
minimal or no function impairment.
Stage II: Bilateral or midline involvement w/o
impairment of balance.
Stage III: 1st signs of righting reflex impairment;
functionally restricted in his/her activities but can
lead independent life. Disability mild/moderate.
Stage IV: Severely disabled. Able to walk &
stand unaided but is markedly handicapped.
Stage V: Confined to bed.
26.
27.
28. Investigations
There is no specific medical test used to
diagnose Parkinson disease.
However, MRIs and blood tests are used
to rule out other possible conditions that
have similar symptoms to Parkinson
disease.
30. LEVODOPA
It is the oldest and most effective treatment of
PD.
Brain enzymes modify the drug to create dopamine.
It reduces slowness and stiffness of muscles.
Given in combination with peripheral decarboxylase
inhibitors, carbidopa & benserazide.
Combinations are called Sinemet & Madopar
respectively.
31. Adverse effects:
Nausea, vomiting, hypotension,orofacial
dyskinesias, dystonias, hallucinations.
Two important phenomenon associated
with levodopa use are:
1) end- of- dose deterioration
2) on-off phenomenon
32.
33. Anticholinergic agents
Useful effects on tremors & rigidity but
do not help bradykinesia.
Adverse effects :
Dry mouth , blurred vision , difficult
urination , constipation, confusion,
hallucinations
34. Amantadine
Useful in controlling dyskinesia produced
by dopaminergic treatment later in the
disease.
Adverse effects:
livedo reticularis , peripheral edema,
confusion , seizures
37. Surgical procedures are now available for
specific patients who no longer respond to
drug treatments.
38. PALLIDOTOMY
It is a neurosurgical procedure that can
reduce many of the symptoms of Parkinson
Disease
Performed by a neurosurgeon, who inserts a
hallow probe into the globus pallidus and then
liquid nitrogen is circulated in the probe.
The probe destroys part of the globus
pallidus by creating a scar .
39. The patient is awake during the procedure
which takes about 6 hours.
It can permanently eliminate
dyskinesias
Reduces tremor, rigidity, bradykinesia
and shuffling gait.
It is not a cure.
41. Deep Brain Stimulation
An electrode is placed in one of several parts
of the brain (thalamus, globus palladus, or
subthalamic nucleus).
The electrode is attached to a computerized
pulse-generator which is put under this skin in
the chest.
Symptoms are relieved through the regulation
of electrical impulses from those three areas
of the brain.
43. Current Research
Neural grafting, or transplantation of nerve
cells, is an experimental technique
proposed for treating the disease.
Investigators have shown in animal
models that implanting fetal brain tissue
from the substantia nigra into a
parkinsonian brain causes damaged nerve
cells to regenerate.
Gene Therapy
44. General Treatment Strategies
Develop routine for self care
Help family/care partner, along with patient,
create ideas for adapting home environment to
meet the patient’s needs.
Modified kitchen
Modified bathroom
Full bathroom and bedroom on first floor
Lift chair
Remove rugs/carpet/furniture that could be
easily tripped over
45.
46. Social Participation
Support groups
Important to encourage continued
involvement in activities important to their
life.
Participation in activities which are not
physically taxing.
Introduce techniques for enhancing voice
volume.
48. Prognosis
Depends upon the age of onset
If symptom starting in middle life ,the
disease is usually progressive & likely to
shorten lifespan.
After 70 is unlikely to shorten life or
become severe.