7 results
Myasthenia Gravis Overview

Myasthenia Gravis is an autoimmune disorder of the postsynaptic neuromuscular junction.  Ab to
Myasthenia Gravis ... Ab to AChR blocks ... chewing, loss of smile ... Labs: - AchR antibodies ... immunologic assay - MuSK
Drugs associated with worsening of Myasthenia Gravis (MG):
•	D-penicillamine 
•	Botulinum toxin.
•	Telithromycin
•	Fluoroquinolones 
•	Quinine
•	Magnesium
•	Macrolide antibiotics 
•	Corticosteroids (may cause transient
with worsening of Myasthenia ... Gravis (MG): • ... of generalized AChR-MG ... because of bulbar weakness ... muscle-specificreceptortyrosinekinase #AChR
Causes of Peripheral Weakness without Sensory Changes - Differential Diagnosis Algorithm
No Objective Weakness
 • Cardio-pulmonary disease
of Peripheral Weakness ... • Cardio-pulmonary ... Oculomotor • Myasthenia ... Gravis • Lambert-Eaton ... Myasthenic Syndrome
Ocular Myasthenia Gravis on Physical Exam

A 41yo female was referred by her neurologist for double vision.
non-localized EOM weakness ... Myasthenia gravis ... suspected and anti-ACh ... tumor, and always ask ... #clinical #video
Myasthenia Gravis - Summary
 • an autoimmune disease of the postsynaptic neuromuscular junction associated with antibodies
Myasthenia Gravis ... or respiratory weakness ... mild to moderate weakness ... or generalized weakness ... #Gravis #diagnosis
Causes of Neuromuscular Weakness
 • Spinal Cord: Demyelinating Disease (MS), Epidural abscess, Infarction, Syringomyelia, Tetanus, Transverse
Neuromuscular Weakness ... Demyelinating Disease (MS ... Eaton Syndrome, Myasthenia ... Gravis, Organophosphate ... Neuromuscular #Weakness
Weakness - Differential Diagnosis Framework

Approach To Weakness:
 • Non-neuromuscular disorder (Cardiac, pulmonary etc)
 • CNS ->
Weakness - Differential ... Approach To Weakness ... Non-neuromuscular disorder (Cardiac ... Postsynaptic: Myasthenia ... Gravis - Lack