26 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 TIER ... Vertebral dissection, Myasthenia ... gravis, Wernicke's ... Thyroid myopathy (Graves
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
Differential diagnoses for the neuro-ophthalmologic finding of diplopia.
Neoplastic: 
 • Intraorbital meningioma 
 • Pituitary adenoma
sclerosis • Myasthenia ... gravis • GBS ... lesion of MLF) • Graves ... VI palsy) #Diplopia ... Differential #Diagnosis #Causes
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
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): • ... Corticosteroids (may cause ... 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 ... ptotic eyelid will cause ... #Gravis #PhysicalExam
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
Plasmodium Falciparum Blood Smear.
Key features suggesting Plasmodium falciparum:
- extreme parasitemia
- normocytic RBCs (vivax, ovale prefer big
Falciparum Blood Smear ... reticulocytes) - thin trophozoites ... P. falciparum causes ... human malaria cases ... Rich Davis, PhD,
Causes of Peripheral Weakness without Sensory Changes - Differential Diagnosis Algorithm
No Objective Weakness
 • Cardio-pulmonary disease
Causes of Peripheral ... Oculomotor • Myasthenia ... Gravis • Lambert-Eaton ... Myasthenic Syndrome ... Diagnosis #Algorithm #Causes