title: Behavior of the Posterior Semicircular Canal After Dix-Hallpike Maneuver.
abstract: The objective of the present study is to analyze the quantitative vestibulo-ocular responses in a group of patients with benign paroxysmal positional vertigo (BPPV) canalolithiasis and compare these data with the data of the tridimensional biomechanical model. This study was conducted on 70 patients that presented idiopathic posterior semicircular canal canalolithiasis. The diagnosis was obtained by Dix-Hallpike maneuvers recorded by videonystagmograph. The present study demonstrates that there is a significant correlation between the intensity of the nystagmus and its latency in cases of BPPV-idiopathic posterior semicircular canal canalolithiasis type. These findings are in agreement with those obtained in a tridimensional biomechanical model and are not related to the patients' age.
authors: Maia Clinic , Canoas, RS, Brazil.
authors: Francisco Carlos
authors: FC
authors: Zuma e Maia
authors: Albert Einstein Hospital , São Paulo, SP, Brazil.
authors: Pedro Luiz Mangabeira
authors: PL
authors: Albernaz
authors: Federal University of Pará , Belém, PA, Brazil.
authors: Renato Valério
authors: RV
authors: Cal
keywords: Benign paroxysmal positional vertigo; Dix-Hallpike maneuver