43 results
Myasthenia Gravis
Signs, Symptoms and Testing - Likelihood Ratios
Does this patient have myasthenia gravis?
JAMA. 2005 Apr 20;293(15):1906-14.
Myasthenia Gravis ... have myasthenia gravis ... eye movements #Diagnosis ... #Myasthenia #Gravis ... LikelihoodRatios #PhysicalExam
Important Causes of Diplopia 
TIER 1-CRITICAL
Basilar artery thrombosis, Botulism, Basilar meningitis, Aneurysmn
TIER 2-EMERGENT:
Vertebral dissection, Myasthenia gravis,
Important Causes ... dissection, Myasthenia gravis ... Thyroid myopathy (Graves ... #differential #diagnosis ... #ophthalmology
Ice-pack Test for Myasthenia Gravis - Likelihood Ratio (LR) +24 / -0.16
Ice pack's can be used
Ice-pack Test for ... Myasthenia Gravis ... #Myasthenia #Gravis ... #physicalexam # ... neurology #diagnosis
Differential diagnoses for the neuro-ophthalmologic finding of diplopia.
Neoplastic: 
 • Intraorbital meningioma 
 • Pituitary adenoma
Differential diagnoses ... for the neuro-ophthalmologic ... • Myasthenia gravis ... #Differential #Diagnosis ... #Causes #Ophthalmology
Diplopia - Double Vision - Differential Diagnosis Algorithm
Clinical Pearls:
 • Diplopia is almost always binocular.
 •
- Differential Diagnosis ... a mass as the cause ... • Myasthenia Gravis ... #Algorithm #Causes ... #Ophthalmology
Ocular Myasthenia Gravis on Physical Exam

A 41yo female was referred by her neurologist for double vision.
Ocular Myasthenia Gravis ... and the ice pack test ... include a Tensilon test ... #PhysicalExam # ... clinical #video #ophthalmology
Myasthenia Gravis Overview

Myasthenia Gravis is an autoimmune disorder of the postsynaptic neuromuscular junction.  Ab to
myasthenia Diagnosis ... Bedside: ice pack test ... /Edrophonium test ... Myasthenia Crises ... #diagnosis #management
Positive Seidel test on fluorescein stain exam

Globe rupture can be identified by a positive Seidel test
Positive Seidel test ... positive Seidel test ... in making the diagnosis ... #fluorescein #Ophthalmology ... #PhysicalExam #
The head impulse test (HIT) result is positive (abnormal) in nearly all patients with a peripheral
The head impulse test ... with a peripheral cause ... with a central cause ... a stand-alone test ... #Diagnosis #PhysicalExam
Diagnosis of Myasthenia Gravis - Physical Exam Maneuvers
 • Sustained lateral gaze for seconds to elicit
Diagnosis of Myasthenia ... Gravis - Physical ... ptotic eyelid will cause ... #PhysicalExam # ... Maneuvers #Diagnosis