Adverse effect of the Epley maneuver: Anterior canal crisis

In the Epley maneuver performed on patients with posterior semicircular canal-benign paroxysmal positional vertigo-canalolithiasis (P-BPPV-Can), an intense downbeat nystagmus and retropulsion rarely appear as soon as they reach the last upright sitting position. It is considered an anterior canal crisis that appears when the otoliths move to the ampullofugal direction in the anterior semicircular canal by changing head and body positions from the healthy-ear-down 135 ° head position (the third head position) to the upright sitting position (the fourth head position).

Source: Auris, Nasus, Larynx - October 15, 2022 Category: ENT & OMF Authors: Kohichiro Shigeno Tags: Original Article Source Type: research