159 results
Classic Findings During Hallpike Test in Posterior Canal Benign Paroxysmal Positional Vertigo (BPPV)
 • Latency (delay
Latency (delay in nystagmus ... and torsional nystagmus ... and nystagmus escalates ... 30 seconds • Nystagmus ... sitting position • Nystagmus
HINTS Exam - Bidirectional Nystagmus 

In a patient with vertigo symptoms, this finding is worrisome for
Bidirectional Nystagmus ... a patient with vertigo ... CENTRAL cause of vertigo ... Bidirectional #Nystagmus ... Neurology #Central #Vertigo
HINTS Exam - Unidirectional Nystagmus - Left-beating

In a patient with vertigo symptoms, this finding is reassuring
Unidirectional Nystagmus ... a patient with vertigo ... PERIPHERAL cause of vertigo ... Unidirectional #Nystagmus ... Neurology #Peripheral #Vertigo
The HINTS Exam - Differentiating Central vs Peripheral Vertigo

Head Impulse Test
Nystagmus
Test of Skew

Animation by Dr. Y.
vs Peripheral Vertigo ... Impulse Test Nystagmus ... PhysicalExam #Testing #Vertigo
Causes of Dizziness - Vertigo - Differential Diagnosis Algorithm
True Vertigo - Illusion of Rotary Movement
Peripheral Vestibular
of Dizziness - Vertigo ... Algorithm True Vertigo ... unidirectonal nystagmus ... Paroxysmal Positional Vertigo ... bidirectional nystagmus
Diagnostic Algorithm for Dizziness and Vertigo
Peripheral Vertigo:
 • Attacks: Sudden, severe, can last anywhere from seconds
Dizziness and Vertigo ... Peripheral Vertigo ... minutes to days • Nystagmus ... present Central Vertigo ... vascular causes • Nystagmus
Characteristics of Peripheral and Central Vertigo
PERIPHERAL VERTIGO
 • Onset: Sudden
 • Intensity: Severe initially, often decreasing
Peripheral and Central Vertigo ... PERIPHERAL VERTIGO ... vestibular neuritis • Nystagmus ... BPPV); worsens vertigo ... circulation TIA • Nystagmus
HINTS Exam - Distinguishing Central from Peripheral Vertigo
 • Head Impulse: Head thrust 10° with eyes
from Peripheral Vertigo ... examiners nose • Nystagmus ... Central #Peripheral #Vertigo
Lateral Medullary Syndrome - Wallenberg's Syndrome
Acute continuous vertigo due to Posterior Circulation Stroke (usually Posterior Inferior
Acute continuous vertigo ... Nausea/vomiting/vertigo ... /nystagmus - Vestibular
Labyrinthitis 
Vestibular neuritis + unilateral hearing loss = Labyrinthitis 
1) Vertigo (severe) 
2) Gait instability 
3)
Labyrinthitis 1) Vertigo ... vestibular CN VIII • Nystagmus