Tuesday, June 30, 2015

Sites of Locked in syndrome (deefferantation)

Sites of Locked in syndrome (deefferantation)

1. Basilar artery occlusion
2. B/L ventral pontine lesion
3. Polyneuritis
4. Myasthenia gravis
5. Polio
6. GB Syndrome

Sites causing Ataxic Hemiparesis

Sites causing Ataxic Hemiparesis

1. C/L thalamocapsular
2. C/L posterior limb of internal capsule
3. C/L red nucleus
4. C/L basis pontis- juntion of upper third and lower two thirds
5. Superficial ACA supplying paracentral area

Sites of Dysarthria- Clumsy Hand Syndrome

Sites of Dysarthria- Clumsy Hand Syndrome

1. Genu of internal capsule
2. Small deep cerebellar hemorrhage
3. Basis pontis at junction of upper third and lower two third

Sites of Pure Motor Hemiparesis

Sites of Pure Motor Hemiparesis

A. Intracranial-
1. Posterior limb of Internal Capsule
2. Cerebral Peduncle
3. Medullary pyramid.
4. Basis pontis 

Thursday, June 25, 2015

House-Brackmann scale

The House-Brackmann scale is a facial nerve grading system, at one end of the scale there is normal facial nerve function and at the other there is complete paralysis.

Grade
FunctionLevel
Symmetry at RestEye(s)Mouth Forehead
INormalNormalNormalNormal Normal
IIMildNormalEasy and complete closure Slightly asymmetrical Reasonable function
IIIModerate Normal With effort, complete closure Slightly affected with effort Slight to Moderate movement 
IVModerately Severe Normal Incomplete closure Asymmetrical with maximum effortNone 
Severe Asymmetry Incomplete closure Minimal Movement None 
VITotal Paralysis 
Total Paralysis

Thursday, June 11, 2015

Complications of IvIg infusion

Nephrotic syndrome
Aseptic meningitis
Serum sickness
Thrombotic venous/arterial occlusion
Stroke
Hypotension

Sunday, June 7, 2015

Wernicke's Encephalopathy- non alcoholic causes

prolonged intravenous feeding,
hyperemesis gravidarum, 
anorexia nervosa, 
refeeding after starvation, 
thyrotoxicosis, 
regional enteritis, 
malabsorption syndromes, 
hemodialysis, 
peritoneal dialysis,
uremia, 
HIV,
malignancy, and 
gastroplasty with postoperative vomiting

Thursday, June 4, 2015

Hughes GBS Disability Scale

Guillain-Barré Syndrome Disability Scale (Hughes)
0Healthy
1Minor symptoms or signs of neuropathy but capable of manual work/capable of running
2Able to walk without support of a stick (5m across an open space) but incapable of manual work/running
3Able to walk with a stick, appliance or support (5m across an open space)
4Confined to bed or chair bound
5Requiring assisted ventilation (for any part of the day or night)
6Death

Asbury Criteria for GBS

Diagnostic criteria
Assessment of current diagnostic criteria for Guillain-Barre syndrome
Required features
  • Progressive weakness in both arms and legs
  • Areflexia (or hyporeflexia).
Features supportive of diagnosis
  • Progression of symptoms over days to 4 weeks
  • Relative symmetry
  • Mild sensory signs or symptoms
  • Cranial nerve involvement, especially bilateral facial weakness
  • Recovery beginning 2 to 4 weeks after progression ceases
  • Autonomic dysfunction
  • Absence of fever at onset
  • Typical CSF (albuminocytologic dissociation)
  • EMG/nerve conduction studies (characteristic signs of a demyelinating process in the peripheral nerves)
Features casting doubt on the diagnosis
  • Asymmetrical weakness
  • Persistent bladder and bowel dysfunction
  • Bladder or bowel dysfunction at onset
  • >50 mononuclear leukocytes/mm3 or presence of polymorphonuclear leukocytes in CSF
  • Distinct sensory level.
Features that rule out the diagnosis
  • Hexacarbon abuse
  • Abnormal porphyrin metabolism
  • Recent diphtheria infection
  • Lead intoxication
  • Other similar conditions: poliomyelitis, botulism, hysterical paralysis, toxic neuropathy.