45 results
Mastoiditis: Pathogenesis and clinical findings

Acute or Chronic Otitis Media -> 
Stage 1: Hyperemeia of the mastoid
Erythema, fluctuant, tender ... vomiting, dizziness, vertigo ... , nystagmus • ... pathophysiology #signs ... #symptoms #diagnosis
Classic Findings During Hallpike Test in Posterior Canal Benign Paroxysmal Positional Vertigo (BPPV)
 • Latency (delay
Latency (delay in nystagmus ... symptoms in head-hanging ... and torsional nystagmus ... and nystagmus escalates ... testing #findings #signs
HINTS Exam - Bidirectional Nystagmus 

In a patient with vertigo symptoms, this finding is worrisome for
Bidirectional Nystagmus ... a patient with vertigo ... symptoms, this ... CENTRAL cause of vertigo ... Bidirectional #Nystagmus
Causes of Dizziness - Vertigo - Differential Diagnosis Algorithm
True Vertigo - Illusion of Rotary Movement
Peripheral Vestibular
vomiting, auditory symptoms ... unidirectonal nystagmus ... Imbalance, neurologic symptoms ... /signs, bidirectional ... nystagmus - Infection
HINTS Exam - Unidirectional Nystagmus - Left-beating

In a patient with vertigo symptoms, this finding is reassuring
Unidirectional Nystagmus ... a patient with vertigo ... symptoms, this ... PERIPHERAL cause of vertigo ... Unidirectional #Nystagmus
Labyrinthitis 
Vestibular neuritis + unilateral hearing loss = Labyrinthitis 
1) Vertigo (severe) 
2) Gait instability 
3)
Labyrinthitis 1) Vertigo ... vestibular CN VIII • Nystagmus ... Labyrinthitis #Diagnosis #Symptoms ... #Signs #Otolaryngology
Diagnostic Algorithm for Dizziness and Vertigo
Peripheral Vertigo:
 • Attacks: Sudden, severe, can last anywhere from seconds
Peripheral Vertigo ... minutes to days • Nystagmus ... vascular causes • Nystagmus ... No auditory symptoms ... Long symptom-free
Myelopathy - Injury to the entire spinal cord - Signs and Symptoms
 • Ataxia (early sign)
spinal cord - Signs ... and Symptoms ... Ataxia (early sign ... Hyperreflexia (deep-tendon ... #symptoms #msk
Characteristics of Peripheral and Central Vertigo
PERIPHERAL VERTIGO
 • Onset: Sudden
 • Intensity: Severe initially, often decreasing
PERIPHERAL VERTIGO ... vestibular neuritis • Nystagmus ... circulation TIA • Nystagmus ... diagnosis #findings #signs ... #symptoms #comparison
Causes of Peripheral and Central Vertigo
PERIPHERAL VERTIGO
1. Benign paroxysmal positional vertigo (BPPV) - Short-lived (typically less
Long symptom-free ... Positional symptoms ... presenting symptom ... varying neurologic signs ... or symptoms.