24 results
Diagnostic Algorithm for Dizziness and Vertigo
Peripheral Vertigo:
 • Attacks: Sudden, severe, can last anywhere from seconds
Diagnostic Algorithm ... minutes to days • Nystagmus ... worsen with head position ... auditory findings BPPV ... • Short-lived, positional
Ocular Nystagmus in PSC BPPV after Dix Hallpike Maneuver

This is a case of posterior semicircular canal
Ocular Nystagmus ... Dr Sudhir Kothari ... sudhir_kothari #Ocular ... #Nystagmus #BPPV ... ophthalmology #neurology
Characteristics of Peripheral and Central Vertigo
PERIPHERAL VERTIGO
 • Onset: Sudden
 • Intensity: Severe initially, often decreasing
vestibular neuritis • Nystagmus ... circulation TIA • Nystagmus ... Central #Vertigo #diagnosis ... #findings #signs ... symptoms #comparison #neurology
Ocular Nystagmus in PSC BPPV after Dix Hallpike Maneuver

This is a case of right posterior semicircular
Ocular Nystagmus ... Dr Sudhir Kothari ... sudhir_kothari #Ocular ... #Nystagmus #BPPV ... ophthalmology #neurology
Causes of Dizziness - Vertigo - Differential Diagnosis Algorithm
True Vertigo - Illusion of Rotary Movement
Peripheral Vestibular
- Differential Diagnosis ... Benign Paroxysmal Positional ... Dysfunction - Imbalance, neurologic ... symptoms/signs, ... Dizziness #Vertigo #Neurology
Differentiating Benign Paroxysmal Positional Vertigo (BPPV) From Vestibular Neuritis-Labyrinthitis
BENIGN PAROXYSMAL POSITIONAL VERTIGO
 • Age: More common
Benign Paroxysmal Positional ... Vertigo (BPPV) ... and torsional nystagmus ... Labyrinthitis #diagnosis ... #neurology #comparison
HINTS Exam - Distinguishing Central from Peripheral Vertigo
 • Head Impulse: Head thrust 10° with eyes
examiners nose • Nystagmus ... uncover each eye Dr ... Peripheral #Vertigo #diagnosis ... #neurology #bppv
Parinaud's Syndrome
What?
 - Impaired upgaze
 - Light-near dissociation
 - Convergence retraction nystagmus
 - Eyelid retraction (Collier's
Convergence retraction nystagmus ... → "setting sun sign ... disease (stroke) Dr ... Parinauds #Syndrome #diagnosis ... #pineal #neurology
Dix-Hallpike Maneuver for BPPV

Procedure:
1. Make the patient sit on examination table, such that the shoulders would
Dix-Hallpike Maneuver for BPPV ... Nystagmus 2. ... DixHallpike #Maneuver #BPPV ... #Instructions #Diagnosis ... #neurology
Parinaud's syndrome
What?
 • Light-near dissociation (tectal pupils)
 • Convergence retraction nystagmus
 • Eyelid retraction (Collier's sign)
Convergence retraction nystagmus ... "setting sun" sign ... pretectal area By Dr ... Parinauds #syndrome #neurology ... #diagnosis