16 results
Upper Extremity Dermatomes and Myotomes
Motor Function
Shoulder:
 • Abduction - C5,C6 (axillary)
 • Adduction - C6, C7,
Pronation - C7, C8 Wrist ... aracteristic "claw hand ... " ± Horner Syndrome ... nerve in the radial ... sensory #motor #arm
Guillain-Barre Syndrome - Summary

Acute AIDP that presents with rapidly progressive flaccid weakness

Epidemiology:
 • 1-2 cases/100,000 per
Guillain-Barre Syndrome ... Pathophysiology ... Can begin in arms ... Paresthesias: Hands ... #management #treatment
Guillain-Barré Syndrome (GBS)
Acute autoimmune demyelinating polyradiculoneuropathy that presents with rapidly progressive flaccid weakness
Epidemiology:
 • Incidence: 1
Guillain-Barré Syndrome ... Incidence: 1 to 2 cases ... sensitive tests ... the underlying pathophysiology ... #management #neurology
Hearing Loss - Differential Diagnosis Framework

Hearing Loss Types:
• Conductive
• Sensorineural
• Mixed
Presbycusis is the most common type
nerves V and VII ... masses and lymphadenitis ... cause unknown) ... II ○ Susac’s syndrome ... Labyrinthitis ○ Epstein-Barr
Cauda Equina Syndrome Overview

Cauda Equina Syndrome:
 • Prevalence: 1:33,000-100,000 ppl/yr
 • Incidence: 1.5-3.4 million ppl/yr
 •
compression of nerve ... - Emergency Causes ... cord • Guillain-Barre ... • Provocative Tests ... absent anal wink test
Disseminated Gonococcal Infection - Diagnosis and Management Summary

Bacteremic spread of the Gram-negative diplococci Neisseria gonorrhoeae. History
Management Summary ... the preferred test ... Most patients are ... joints, knees, wrists ... , ankles • Axial
Myasthenia Gravis Overview

Myasthenia Gravis is an autoimmune disorder of the postsynaptic neuromuscular junction.  Ab to
proximal weakness, arms ... nerve pathology ... /Edrophonium test ... - Repetitive nerve ... Gravis #diagnosis #management
The Neurological Evaluation of a Comatose Patient

Definition:
 • Coma: a state of unresponsiveness; the absence of
Unresponsive wakefulness syndrome ... • Locked-in syndrome ... • Mutism Pathophysiology ... Nerves: Brainstem ... Casey Albin MD @
Sarcoidosis - Diagnosis and Management Summary
Epidemiology
1) High incidence in Scandinavian countries (11-24 cases per 100,000 individuals
Management Summary ... survival is 93-95% Pathophysiology ... Many symptoms are ... not caused by granulomas ... Sarcoidosis #Diagnosis #Management
Acute Closed Angle Glaucoma: Pathogenesis and Clinical Findings
OPHTHALMIC EMERGENCY: Early detection is essential, but most patients
• Significant cause ... most frequent cause ... anterior chambers Anatomic ... leads to optic nerve ... ClosedAngle #Glaucoma #pathophysiology