9 results
Causes of Peripheral Weakness without Sensory Changes - Differential Diagnosis Algorithm
No Objective Weakness
 • Cardio-pulmonary disease
Causes of Peripheral ... Sensory Changes - Differential ... Oculomotor • Myasthenia ... • Congenital Myopathy ... #Neurology #Differential
Causes of Proximal Muscle Weakness That May Mimic Inflammatory Myopathy
 • Central or peripheral neurologic disease
Causes of Proximal ... Muscle Weakness ... neurologic disease • Myasthenia ... mimics #diagnosis #differential ... #causes #neurology
Causes of Neuromuscular Weakness
 • Spinal Cord: Demyelinating Disease (MS), Epidural abscess, Infarction, Syringomyelia, Tetanus, Transverse
Weakness • Spinal ... Eaton Syndrome, Myasthenia ... aminoglycosides) • Muscles: Acid ... Mitochondrial myopathy ... #Causes #differential
Generalized Weakness - Differential Diagnosis Framework
"l feel weak":
 • Infectious: Influenza, EBV, PNA, Bacteremia, Sepsis
 •
Resp/Heme: CHF, valves ... I am weak": • Myopathy ... NMJ disorder (Myasthenia ... Diagnosis #causes ... #neurology
Myasthenia Gravis Overview

Myasthenia Gravis is an autoimmune disorder of the postsynaptic neuromuscular junction.  Ab to
crises”. ... life-threatening Differential ... Serologic and EMG ... bulbar weakness ... diagnosis #management #neurology
Weakness - Differential Diagnosis Framework

Approach To Weakness:
 • Non-neuromuscular disorder (Cardiac, pulmonary etc)
 • CNS ->
Weakness - Differential ... Postsynaptic: Myasthenia ... Myopathy: ... #Differential # ... Diagnosis #neurology
Acid Base Disorders - Blood Gas Interpretation

Steps for Blood Gas Interpretation: 
1. Acidemia or Alkalemia? 
2.
Acid Base Disorders ... And BMP Normal Values ... Neuromuscular weakness ... (GBS, Myasthenia ... Diagnosis #Summary #Nephrology
Cauda Equina Syndrome Overview

Cauda Equina Syndrome:
 • Prevalence: 1:33,000-100,000 ppl/yr
 • Incidence: 1.5-3.4 million ppl/yr
 •
lumbar spine • MCC ... - Emergency Causes ... lower extremity weakness ... #diagnosis #causes ... #neurology
Autoimmune Myositis - Differential Diagnosis Framework

Inflammatory Myopathies: Commonly symmetric proximal muscle weakness, no substantial muscle pain
Autoimmune Myositis - Differential ... Aldolase levels • EMG ... statins - probably caused ... Other Diseases: • PBC ... #rheumatology #differential