11 results
Causes of Peripheral Weakness without Sensory Changes - Differential Diagnosis Algorithm
No Objective Weakness
 • Cardio-pulmonary disease
Causes of Peripheral ... Neuropathy • Spinal ... Gravis • Lambert-Eaton ... • Congenital Myopathy ... #Neurology #Differential
Causes of Neuromuscular Weakness
 • Spinal Cord: Demyelinating Disease (MS), Epidural abscess, Infarction, Syringomyelia, Tetanus, Transverse
WeaknessSpinal ... Motor Nerves: ALS ... Gravis, Organophosphate ... Mitochondrial myopathy ... #Causes #differential
Causes of Proximal Muscle Weakness That May Mimic Inflammatory Myopathy
 • Central or peripheral neurologic disease
Muscle Weakness ... neurologic disease • Myasthenia ... gravis • Muscular ... mimics #diagnosis #differential ... #causes #neurology
Myasthenia Gravis Overview

Myasthenia Gravis is an autoimmune disorder of the postsynaptic neuromuscular junction.  Ab to
Myasthenia Gravis ... life-threatening Differential ... Generalized fatigue - ALS ... Serologic and EMG ... #management #neurology
Generalized Weakness - Differential Diagnosis Framework
"l feel weak":
 • Infectious: Influenza, EBV, PNA, Bacteremia, Sepsis
 •
Resp/Heme: CHF, valves ... I am weak": • Myopathy ... Polyneuropathy, ALS ... NMJ disorder (Myasthenia ... Diagnosis #causes
Myasthenia Gravis - Summary
 • an autoimmune disease of the postsynaptic neuromuscular junction associated with antibodies
Myasthenia Gravis ... More likely to cause ... Sinai Hospital of ... #Gravis #diagnosis ... #management #neurology
Weakness - Differential Diagnosis Framework

Approach To Weakness:
 • Non-neuromuscular disorder (Cardiac, pulmonary etc)
 • CNS ->
Weakness - Differential ... Lesions of the spinal ... Postsynaptic: Myasthenia ... Gravis - Lack ... Myopathy:
Cauda Equina Syndrome Overview

Cauda Equina Syndrome:
 • Prevalence: 1:33,000-100,000 ppl/yr
 • Incidence: 1.5-3.4 million ppl/yr
 •
MCC- acute ... - Emergency Causes ... lower extremity weakness ... #diagnosis #causes ... #neurology
Acid Base Disorders - Blood Gas Interpretation

Steps for Blood Gas Interpretation: 
1. Acidemia or Alkalemia? 
2.
And BMP Normal Values ... Neuromuscular weakness ... (GBS, Myasthenia ... gravis) - Obstructive ... Diagnosis #Summary #Nephrology
Amyotrophic Lateral Sclerosis (ALS) Summary
ALS: combination of the clinical examination finding of amyotrophy with the pathologic
brainstem and multiple spinal ... - Causes progressive ... EMG: LMN Signs in ... cervical and thoracic spine ... conditions listed in differential