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diagnosis neurology differential barre dermatomes guillain management motor myotomes sensory arm brudzinskis caudaequina clinical comatose cord disorders equina gbs guillainbarre
Cauda Equina Syndrome Overview Cauda Equina Syndrome: • Prevalence: 1:33,000-100,000 ppl/yr • Incidence: 1.5-3.4 million ppl/yr •
Cauda Equina Syndrome ... symptoms: • Severe low ... - Emergency Causes ... differential #diagnosis #causes ... #neurology
Lower Extremity Dermatomes and Myotomes Reflexes: • Knee - L2, L3, L4 • Ankle - S1
and Myotomes Reflexes ... Conditions: • Cauda ... Equina Syndrome ... - Low back pain ... Commonly caused
Upper Extremity Dermatomes and Myotomes Motor Function Shoulder: • Abduction - C5,C6 (axillary) • Adduction - C6, C7,
Upper Extremity ... , T1 (median) Reflexes ... Carpal Tunnel Syndrome ... #UpperLimb #Extremity ... sensory #motor #arm #physicalexam
The Neurological Evaluation of a Comatose Patient Definition: • Coma: a state of unresponsiveness; the absence of
Unresponsive wakefulness syndrome ... • Locked-in syndrome ... • Mutism Pathophysiology ... Casey Albin MD @ ... caseyalbin #PhysicalExam
Guillain-Barre Syndrome - Summary Acute AIDP that presents with rapidly progressive flaccid weakness Epidemiology: • 1-2 cases/100,000 per
Epidemiology: • 1-2 cases ... Guillain-Barre Pathophysiology ... paralysis of all extremity ... Decreased / Absent Reflexes ... nerve roots and cauda
Spinal Cord Disorders - Differential Diagnosis Framework Spinal cord neurological lesion: Clinical findings: • Symptoms and signs below
Lower roots -> Cauda ... Non-compressive Spinal Cord Causes ... MCTD, Sjogren syndrome ... dysfunction • Abnormal reflexes ... differential #algorithm
Brudzinski’s Sign in Meningitis (first described in 19th century by Dr. Josef Brudzinski) Brudzinski's sign is characterized
Passive neck flexion causes ... While the pathophysiology ... an involuntary reflex ... meningitis, it has low ... Clinical #Video #PhysicalExam
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 Guillain-Barré Syndrome (GBS) Acute autoimmune demyelinating polyradiculoneuropathy that presents with rapidly progressive flaccid weakness Epidemiology: • Incidence: 1
Guillain-Barré Syndrome ... depressed deep tendon reflexes ... paralysis of all extremity ... the underlying pathophysiology ... nerve roots and cauda
Causes of Hyperkalemia - Intercellular Shift - Differential Diagnosis Algorithm Transcellular Shift - Appropriate renal excretion (GFR,
Causes of Hyperkalemia ... , TTKG, distal flow ... Osmoles, Increased Urate ... Tumor Lysis Syndrome ... IntercellularShift #Nephrology
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