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diagnosis differential symptoms causes clinical physicalexam video algorithm bppv central maneuver peripheral deficiency dizziness encephalopathy half instructions lateral liberatory one
Causes of Dizziness - Vertigo - Differential Diagnosis Algorithm True Vertigo - Illusion of Rotary Movement Peripheral Vestibular
unidirectonal nystagmus ... symptoms/signs, ... bidirectional nystagmus ... Glomus Tumors - Vascular ... #Neurology #Differential
Parinaud's Syndrome What? - Impaired upgaze - Light-near dissociation - Convergence retraction nystagmus - Eyelid retraction (Collier's
Parinaud's Syndrome ... Convergence retraction nystagmus ... → "setting sun sign ... " - Vascular disease ... diagnosis #pineal #neurology
Diagnostic Algorithm for Dizziness and Vertigo Peripheral Vertigo: • Attacks: Sudden, severe, can last anywhere from seconds
minutes to days • Nystagmus ... Varies • No neurologic ... or minutes with vascular ... causes • Nystagmus ... position change • Neurologic
Peripheral and Central Causes of Vertigo Peripheral Causes (Common): - Labyrinth: Benign paroxysmal positional vertigo, Méniére disease,
Central Causes of Vertigo ... Uncommon): - Vascular ... Wallenberg syndrome ... hemorrhage - Non-vascular ... differential #diagnosis #neurology
Characteristics of Peripheral and Central Vertigo PERIPHERAL VERTIGO • Onset: Sudden • Intensity: Severe initially, often decreasing
vestibular neuritis • Nystagmus ... or minutes with vascular ... circulation TIA • Nystagmus ... diagnosis #findings #signs ... symptoms #comparison #neurology
Parinaud's syndrome What? • Light-near dissociation (tectal pupils) • Convergence retraction nystagmus • Eyelid retraction (Collier's sign)
Parinaud's syndrome ... Convergence retraction nystagmus ... "setting sun" sign ... • Vascular disease ... #neurology #diagnosis
Lateral Medullary Syndrome - Wallenberg's Syndrome Acute continuous vertigo due to Posterior Circulation Stroke (usually Posterior Inferior
- Wallenberg's Syndrome ... Acute continuous vertigo ... Nausea/vomiting/vertigo ... /nystagmus - Vestibular ... #Wallenbergs #neurology
Causes of Peripheral and Central Vertigo PERIPHERAL VERTIGO 1. Benign paroxysmal positional vertigo (BPPV) - Short-lived (typically less
Vascular disorders ... (Wallenberg's syndrome ... with significant neurologic ... Syndrome usually ... signs or symptoms
Clinical Manifestations of Serotonin Syndrome • Ophthalmologic: Mydriasis, Ocular clonus (slow horizontal movements) • Gastrointestinal: Diarrhea,
Manifestations of Serotonin Syndrome ... • Ophthalmologic ... Cardiovascular and vital sign ... Clonus (inducible), Muscular ... Symptoms #spectrum #signs
Acute Spinal Cord Injuries: Pathogenesis and clinical findings • Anterior Cord Syndrome -> Anterior spinal artery
Anterior Cord Syndrome ... injury, often from vascular ... • Central Cord Syndrome ... pathophysiology #signs ... #orthopedics #neurology
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