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TitleDescriptionSubject
1 Dix-Hallpike maneuver in posterior BPPV with reversal of nystagmus on sitting upThis is a patient with typical posterior canal (PC) benign paroxysmal positional vertigo (BPPV), which is provoked by the Dix-Hallpike maneuver. When the patient is moved into the right Dix-Hallpike maneuver, after a brief latency, upbeat-torsional (towards the lowermost or affected [right] ear) nys...BPPV Posterior, BPPV Diagnosis, Jerk Nystagmus, Vestibular Nystagmus
2 Posterior Canal - BPPV: Epley and Semont maneuversEpley/canalith repositioning maneuver (CRP) To treat right posterior canal (PC)-BPPV (each position maintained for at least 30 seconds or until nystagmus and/or vertigo cease): • First the patient is placed in the long-sitting position • The head is rotated 45 degrees to the right • Then the p...Benign Paroxysmal Positional Vertigo; BPPV; Posterior Canal; Epley Canalith Repositioning Maneuver - CRP; Semont Maneuver; Exam; Examination
3 Posterior canal BPPV pre- and post-Epley maneuverThis is a patient with typical right posterior canal benign paroxysmal positional vertigo (BPPV), which was provoked by the Dix-Hallpike maneuver. When the patient was moved into the right Dix-Hallpike maneuver, after a brief latency, upbeat-torsional (towards the lowermost or affected [right] ear) ...BPPV Posterior, BPPV Diagnosis, BPPV Treatment, Jerk Nystagmus, Vestibular Nystagmus,
4 Posterior canal BPPV treated with Semont maneuverThis is a patient with left posterior canal (PC) benign paroxysmal positional vertigo (BPPV), and upbeat-torsional (towards the left ear) nystagmus was provoked by left Dix-Hallpike maneuver and left side-lying maneuver. This video demonstrates treatment of her left PC BPPV with the Semont maneuver....BPPV Posterior, BPPV Diagnosis, BPPV Treatment, Jerk Nystagmus, Vestibular Nystagmus
5 Posterior canal BPPV with fixation and with fixation removedThis is a 60-yo-woman with positional vertigo. In the right Dix-Hallpike position with fixation removed, there was clear upbeat-torsional nystagmus (towards the lowermost right ear) which led to the diagnosis of right posterior canal BPPV. In right Dix-Hallpike with fixation there was mainly torsion...Benign Paroxysmal Positional Vertigo; BPPV, Dix-Hallpike, posterior canal; Vestibular nystagmus; Jerk nystagmus
6 Relationship between semicircular canals and extraocular musclesFigure 1: When stimulated, each of the 6 angular acceleration detecting semicircular canals (3 on the right and 3 on the left) responds with a conjugate eye movement, with the vector(s) indicated below. PC=posterior canal; HC=horizontal (also known as lateral) canal; AC=anterior (also known as super...Extraocular Muscles
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