Canalith repositioning in apogeotropic horizontal canal benign paroxysmal positional vertigo: Do we need faster maneuvering?

Minho Hwang, Sang-Hoon Kim, Kyung-Wook Kang, Dasom Lee, Sae-Young Lee, Myeong-Kyu Kim, Seung-Han Lee
Journal of the Neurological Sciences 2015 November 15, 358 (1-2): 183-7
A correct diagnosis and a proper treatment may yield a rapid and simple cure for benign paroxysmal positional vertigo (BPPV). Although the Gufoni maneuver is widely used to treat apogeotropic horizontal-canal BPPV (HC-BPPV), few studies have clarified the relationship between the speed and intensity of maneuver execution and successful canalith reposition. To evaluate the effect of accelerated execution of the Gufoni maneuver, a prospective randomized controlled study was conducted with HC-BPPV patients in a single dizziness clinic. The patients had been diagnosed with apogeotropic HC-BPPV and were undergoing treatment at the dizziness clinic of a tertiary university hospital from January 2013 to August 2014. Two groups were treated with the maneuver performed at different speeds and the resolution rate was compared. The accelerated maneuver group was subjected to faster position changing-within 1s-during the reposition maneuver, while the non-accelerated maneuver group underwent slower maneuvers. Therapeutic efficacy was defined as dizziness relief or resolution of nystagmus within 1h. Fifty patients with apogeotropic HC-BPPV were enrolled and treated with the Gufoni maneuver in two groups of 25 patients. The overall resolution rate was 48% (24 of 50; p=1.00), regardless of acceleration. Our results suggest that a faster, more intense execution of the Gufoni maneuver provides little benefit in treating apogeotropic HC-BPPV. Detachment of the otolith from the cupula or the gravitational force-when the otolith is in the anterior arm of the HC-may be more important contributors to treatment efficacy.

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