49 results
Characteristics of Peripheral and Central Vertigo
PERIPHERAL VERTIGO
 • Onset: Sudden
 • Intensity: Severe initially, often decreasing
Nystagmus: Usually torsional ... BPPV; horizontal-torsional ... with vascular causes ... spontaneous and purely torsional ... #signs #symptoms
Causes of Dizziness - Vertigo - Differential Diagnosis Algorithm
True Vertigo - Illusion of Rotary Movement
Peripheral Vestibular
Causes of Dizziness ... - Vertigo - Differential ... Algorithm True Vertigo ... neurologic symptoms/signs ... Diagnosis #Algorithm #Causes
Diagnostic Algorithm for Dizziness and Vertigo
Peripheral Vertigo:
 • Attacks: Sudden, severe, can last anywhere from seconds
• Auditory findings ... with vascular causes ... positional episodes caused ... horizontal canal) Vestibular ... auditory symptoms (vestibular
Classic Findings During Hallpike Test in Posterior Canal Benign Paroxysmal Positional Vertigo (BPPV)
 • Latency (delay
Classic Findings ... nystagmus and vertigo ... forehead) and torsional ... physicalexam #testing #findings ... #signs #bppv #vertigo
Labyrinthitis 
Vestibular neuritis + unilateral hearing loss = Labyrinthitis 
1) Vertigo (severe) 
2) Gait instability 
3)
Labyrinthitis Vestibular ... Labyrinthitis 1) Vertigo ... instability 3) Nausea ... inflammation of vestibular ... Diagnosis #Symptoms #Signs
Lateral Medullary Syndrome - Wallenberg's Syndrome
Acute continuous vertigo due to Posterior Circulation Stroke (usually Posterior Inferior
Acute continuous vertigo ... occlusion) Clinical Findings ... : • Nausea/vomiting ... /vertigo/nystagmus ... - Vestibular nucleus
Causes of Peripheral and Central Vertigo
PERIPHERAL VERTIGO
1. Benign paroxysmal positional vertigo (BPPV) - Short-lived (typically less
Causes of Peripheral ... Vestibular neuritis ... without an obvious cause ... varying neurologic signs ... #Causes #differential
Serotonin-Norepinephrine Reuptake Inhibitors(SNRIs): Mechanisms and Side Effects

Withdrawal: Dizziness, Diarrhea, Insomnia, Nausea, Vomiting
Serotonin Syndrome - Potentially Life
Diarrhea, Insomnia, Nausea ... Insomnia, Fatigue, Vertigo ... gain Incr NE: Nausea ... SerotoninNorepinephrine #Inhibitors #Pathophysiology ... Psychiatry #Diagnosis #Signs
Alzheimer’s Disease: Pathogenesis and Clinical Findings
Risk factor for Late Onset Alzheimer's (99% of cases):
 - Increasing
Pathogenesis and Clinical Findings ... chromosome 21) Signs ... Aphasia, word-finding ... AlzheimersDisease #Dementia #pathophysiology ... geriatrics #diagnosis #signs
Polyarteritis Nodosa (PAN): Pathogenesis and Clinical Findings

Medical Comorbidities Malignancies (most commonly hairy-cell leukemia)
Immunogenetic Predisposition: patient is
Pathogenesis and Clinical Findings ... Viral replication causes ... - Orchitis: Testicular ... PolyarteritisNodosa #Pathophysiology ... #Diagnosis #Signs