11 results
Lower Extremity Dermatomes and Myotomes
Reflexes: 
 • Knee - L2, L3, L4
 • Ankle - S1
Lower Extremity ... • Cauda Equina Syndrome ... saddle (perineal) anesthesia ... Foot drop and sensory ... #sensory #motor
Acute Spinal Cord Injuries: Pathogenesis and clinical findings
 • Anterior Cord Syndrome -> Anterior spinal artery
hyperextension -> Upper extremity ... Sensory loss below ... Primarily Upper Extremity ... reflex. saddle anesthesia ... #orthopedics #neurology
Wernicke Encephalopathy - Acute B1 (Thiamine) Deficiency - Diagnosis and Management
Diagnosis - Caine Criteria (2 of
Encephalopathy - Acute B1 ... Diagnosis and Management ... development of Korsakoff syndrome ... Deficiency #Diagnosis #Management ... #neurology #nutrition
Cauda Equina Syndrome Overview

Cauda Equina Syndrome:
 • Prevalence: 1:33,000-100,000 ppl/yr
 • Incidence: 1.5-3.4 million ppl/yr
 •
and/or genital sensory ... • S - Saddle anesthesia ... weakness and sensory ... or absent lower extremity ... diagnosis #causes #neurology
Upper Extremity Dermatomes and Myotomes
Motor Function
Shoulder:
 • Abduction - C5,C6 (axillary)
 • Adduction - C6, C7,
Upper Extremity ... Carpal Tunnel Syndrome ... regimental badge" anesthesia ... #UpperLimb #Extremity ... #sensory #motor
Neuromyelitis Optica (NMO) - Clinical Manifestations
 • Optic neuritis: Reduced visual acuity, ranging from mild to
Other brainstem syndromes ... (e.g. oculomotor ... myelitis: Motor and sensory ... deficits ranging from paresthesia ... Manifestations #diagnosis #neurology
Lesions of the Spinal cord - Spinal Cord Syndromes

Spinal cord lesions can result in permanent neurologic
- Infection (e.g ... at the level of sensory ... Impotence - Saddle anesthesia ... paralysis - Sensory ... loss - Saddle anesthesia
Guillain-Barre Syndrome - Summary

Acute AIDP that presents with rapidly progressive flaccid weakness

Epidemiology:
 • 1-2 cases/100,000 per
Guillain-Barre Syndrome ... paralysis of all extremity ... Electrodiagnostic studies - EMG ... #diagnosis #management ... #treatment #neurology
Myasthenia Gravis Overview

Myasthenia Gravis is an autoimmune disorder of the postsynaptic neuromuscular junction.  Ab to
Ab to AChR blocks ... thyroid, Sjogren syndrome ... Serologic and EMG ... Gravis #diagnosis #management ... #neurology
Multiple Sclerosis - Summary

Multiple Sclerosis (MS) is an autoimmune-mediated neurodegenerative disease of the central nervous system
Partial myelitis • Sensory ... • Or brainstem syndromes ... VEP’s: EEG of visual ... sclerosis #diagnosis #management ... #neurology #treatment