18 results
USMLE Epidemiology and Biostatistics Summary
Meta-Analysis: pools data from several studies (greater power), limited by quality/bias of
limited by quality/bias ... PPV: proportion ... low, then PPV will ... specificity -> higher PPV ... time Lead-time bias
Differentiating Benign Paroxysmal Positional Vertigo (BPPV) From Vestibular Neuritis-Labyrinthitis
BENIGN PAROXYSMAL POSITIONAL VERTIGO
 • Age: More common
Positional Vertigo (BPPV ... Negative (Note: It is ... consistent with BPPV ... ) #Vertigo #BPPV ... Labyrinthitis #diagnosis #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 ... with the ear that is ... When the head is ... DixHallpike #Maneuver #BPPV ... Instructions #Diagnosis #neurology
Epley Maneuver for Treatment of BPPV
1) The patient begins in an upright sitting posture, and the
for Treatment of BPPV ... 2) The patient is ... patient's head is ... Epley #Maneuver #BPPV ... positional #vertigo #neurology
Ocular Nystagmus in PSC BPPV after Dix Hallpike Maneuver

This is a case of posterior semicircular canal
Nystagmus in PSC BPPV ... Maneuver This is ... semicircular canal BPPV ... Ocular #Nystagmus #BPPV ... ophthalmology #neurology
Causes of Peripheral and Central Vertigo
PERIPHERAL VERTIGO
1. Benign paroxysmal positional vertigo (BPPV) - Short-lived (typically less
positional vertigo (BPPV ... Highest incidence is ... with significant neurologic ... attacks with varying neurologic ... differential #diagnosis #neurology
Ocular Nystagmus in PSC BPPV after Dix Hallpike Maneuver

This is a case of right posterior semicircular
Nystagmus in PSC BPPV ... Maneuver This is ... semicircular canal BPPV ... Ocular #Nystagmus #BPPV ... ophthalmology #neurology
EEG/Bispectral Index (BIS) Monitoring - Neuromuscular Blockade

 • Use EEG/BIS monitor to ensure sedation depth is
Bispectral Index (BIS ... • Use EEG/BIS ... evidence that BIS ... @nickmmark #BIS ... Blockade #NMB #neurology
Dix-HaIlpike Maneuver
 • Turn head to 45° and then rapidly lay patient to a supine position
The test is positive ... if there is rotational ... HaIlpike #Maneuver #neurology ... #vertigo #bppv
Dix-Hallpike Maneuver for the Diagnosis of BPPV (Animated)

The Dix–Hallpike test (Nylen Barany test) is a diagnostic
the Diagnosis of BPPV ... Nylen Barany test) is ... identify posterior BPPV ... Maneuver #Diagnosis #BPPV ... #neurology #Animated