9 results
Causes of Peripheral Weakness without Sensory Changes - Differential Diagnosis Algorithm
No Objective Weakness
 • Cardio-pulmonary disease
Causes of Peripheral ... Differential Diagnosis Algorithm ... Motor Neuron and ... Lambert-Eaton Myasthenic Syndrome ... #Weakness #Neurology
Algorithm showing a stepwise approach to the assessment and investigation of a possible neuropathy. CIDP, chronic
the assessment and ... Guillain-Barré syndrome ... palsies; NCS, nerve ... #Diagnosis #Neurology ... #Neuropathy #Peripheral
Weakness - Differential Diagnosis Framework

Approach To Weakness:
 • Non-neuromuscular disorder (Cardiac, pulmonary etc)
 • CNS ->
• Acute stroke syndromes ... Lesions Of The Peripheral ... Paraneoplastic syndrome ... Lambert-Eaton - Isaacs' syndrome ... Differential #Diagnosis #neurology
Upper Extremity Dermatomes and Myotomes
Motor Function
Shoulder:
 • Abduction - C5,C6 (axillary)
 • Adduction - C6, C7,
" ± Horner Syndrome ... nerve in the radial ... Carpal Tunnel Syndrome ... deltoid weakness ... Myotomes #diagnosis #neurology
Guillain-Barre Syndrome - Summary

Acute AIDP that presents with rapidly progressive flaccid weakness

Epidemiology:
 • 1-2 cases/100,000 per
Guillain-Barre Pathophysiology ... 30%) • Facial Nerve ... • Pain: Due to nerve ... intrathecal spinal nerve ... management #treatment #neurology
Causes of Hemiplegia - Differential Diagnosis Algorithm
Cerebral Hemisphere (Contralateral motor cortex)
 • Aphasia
 • Apraxia
 •
Differential Diagnosis Algorithm ... Consciousness • Cranial Nerve ... Brown-Sequard Syndrome ... ipsilateral to weakness ... #Hemiplegia #Neurology
Guillain-Barré Syndrome (GBS)
Acute autoimmune demyelinating polyradiculoneuropathy that presents with rapidly progressive flaccid weakness
Epidemiology:
 • Incidence: 1
Guillain-Barré Syndrome ... cross-reacts with peripheral ... or the axon of peripheral ... the underlying pathophysiology ... diagnosis #management #neurology
Causes of Hypotonic Infant (Floppy Newborn) - Differential Diagnosis Algorithm
Central Nervous System - Decreased LOC, Axial
Differential Diagnosis Algorithm ... Decreased LOC, Axial Weakness ... Other Congenital Syndromes ... Weakness - Nerves ... • Congenital and
Vasculitis - Differential Diagnosis Framework

When to Consider Vasculitis:
• Purpura, ischemic skin lesions
• Mononeuritis multiplex
• Hematuria, proteinuria,
affects the skin, neurologic ... muscle weakness ... • Nerves: Neuropathy ... cognitive impairment, neurologic ... gray matter changes