14 results
HINTS Exam - Bidirectional Nystagmus 

In a patient with vertigo symptoms, this finding is worrisome for
Bidirectional Nystagmus ... a patient with vertigo ... Bidirectional #Nystagmus ... Video #Positive #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 ... Unidirectional #Nystagmus ... Video #Negative #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 ... Central #Peripheral #Neurology
Causes of Dizziness - Vertigo - Differential Diagnosis Algorithm
True Vertigo - Illusion of Rotary Movement
Peripheral Vestibular
of Dizziness - Vertigo ... unidirectonal nystagmus ... Dysfunction - Imbalance, neurologic ... bidirectional nystagmus ... #Neurology #Differential
Diagnostic Algorithm for Dizziness and Vertigo
Peripheral Vertigo:
 • Attacks: Sudden, severe, can last anywhere from seconds
minutes to days • Nystagmus ... Varies • No neurologic ... vascular causes • Nystagmus ... position change • Neurologic ... differential #diagnosis #neurology
HINTS Exam - Distinguishing Central from Peripheral Vertigo
 • Head Impulse: Head thrust 10° with eyes
from Peripheral Vertigo ... examiners nose • Nystagmus ... Central #Peripheral #Vertigo ... #diagnosis #neurology
Characteristics of Peripheral and Central Vertigo
PERIPHERAL VERTIGO
 • Onset: Sudden
 • Intensity: Severe initially, often decreasing
Peripheral and Central Vertigo ... PERIPHERAL VERTIGO ... vestibular neuritis • Nystagmus ... circulation TIA • Nystagmus ... symptoms #comparison #neurology
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 ... #Wallenbergs #neurology
Differentiating Benign Paroxysmal Positional Vertigo (BPPV) From Vestibular Neuritis-Labyrinthitis
BENIGN PAROXYSMAL POSITIONAL VERTIGO
 • Age: More common
Paroxysmal Positional Vertigo ... PAROXYSMAL POSITIONAL VERTIGO ... and torsional nystagmus ... reproduction of vertigo ... Labyrinthitis #diagnosis #neurology
Mastoiditis: Pathogenesis and clinical findings

Acute or Chronic Otitis Media -> 
Stage 1: Hyperemeia of the mastoid
Erythema, fluctuant, tender ... vomiting, dizziness, vertigo ... , nystagmus