41 results
Myasthenia Gravis - Ptosis, Diplopia, Blurred Vision

Acute Myasthenic Crisis 
• Triggered by infection, medication 
• Respiratory
Myasthenia Gravis ... - Ptosis, Diplopia ... Vision Acute Myasthenic ... ventilation #Myasthenia ... #Gravis #Diagnosis
Important Causes of Diplopia 
TIER 1-CRITICAL
Basilar artery thrombosis, Botulism, Basilar meningitis, Aneurysmn
TIER 2-EMERGENT:
Vertebral dissection, Myasthenia gravis,
Important Causes of Diplopia ... Vertebral dissection, Myasthenia ... gravis, Wernicke's ... Thyroid myopathy (Graves ... #differential #diagnosis
Differential diagnoses for the neuro-ophthalmologic finding of diplopia.
Neoplastic: 
 • Intraorbital meningioma 
 • Pituitary adenoma
Differential diagnoses ... sclerosis • Myasthenia ... gravis • GBS ... lesion of MLF) • Graves ... VI palsy) #Diplopia
Diplopia - Double Vision - Differential Diagnosis Algorithm
Clinical Pearls:
 • Diplopia is almost always binocular.
 •
Myasthenia ... Gravis is fatiguable ... Neuromuscular Junction • Myasthenia ... Gravis Extraocular ... Subdural Hemorrhage Grave's
Myasthenia Gravis Overview

Myasthenia Gravis is an autoimmune disorder of the postsynaptic neuromuscular junction.  Ab to
Myasthenia Gravis ... Gravis is an autoimmune ... Gravis: - Fatiguability ... Gravis Treatment ... #Gravis #diagnosis
Myasthenia Gravis
Signs, Symptoms and Testing - Likelihood Ratios
Does this patient have myasthenia gravis?
JAMA. 2005 Apr 20;293(15):1906-14.
Myasthenia Gravis ... this patient have myasthenia ... gravis? ... eye movements #Diagnosis ... #Myasthenia #Gravis
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): • ... prevent prolonged myasthenic ... higher risk of myasthenic ... ocularmyasthenia #ptosis #diplopia
Diagnosis of Myasthenia Gravis - Physical Exam Maneuvers
 • Sustained lateral gaze for seconds to elicit
Diagnosis of Myasthenia ... Gravis - Physical ... elicit fatigable diplopia ... #Gravis #PhysicalExam ... #Maneuvers #Diagnosis
Ice-pack Test for Myasthenia Gravis - Likelihood Ratio (LR) +24 / -0.16
Ice pack's can be used
Ice-pack Test for Myasthenia ... Gravis - Likelihood ... Icepack #Test #Myasthenia ... #Gravis #physicalexam ... #neurology #diagnosis
Ocular Myasthenia Gravis on Physical Exam

A 41yo female was referred by her neurologist for double vision.
Gravis on Physical ... Myasthenia gravis ... gravis has been ... subsequently improved the diplopia ... #Gravis #PhysicalExam