The Relationship between Prognosis and Change of Nystagmus during Maneuvers Based Treatment for BPPV

Autor:	Yukiko Takakuwa, Norihiko Murai, Tomoko Okumura, Shogo Shinohara, Tatsunori Sakamoto, Etsuo Yamaoto, Kazutomo Kitajima, Takayoshi Itaya, Yasuyuki Tasaka
Rok vydání:	1997
Předmět:	medicine.medical_specialty Benign paroxysmal positional vertigo genetic structures business.industry Nystagmus medicine.disease eye diseases Surgery Physical medicine and rehabilitation Otorhinolaryngology Improvement rate Medicine Neurology (clinical) medicine.symptom business
Zdroj:	Equilibrium Research. 56:436-440
ISSN:	1882-577X 0385-5716
Popis:	Several benign paroxysmal positional vertigo (BPPV) treatments, including Particle Repositioning Maneuver (PRM) and Liberatory Maneuver (LM), are based on the "canalolithiasis" theory, and the usefulness of these treatments has been confirmed. We examined whether the accuracy of prognosis can be improved by checking the direction of nystagmus during treatment (secondary nystagmus). When secondary nystagmus occurred in the same direction as the provoked initial position, the efficacy of treatment was 90.9%. When secondary nystagmus was reversed, the efficacy was 30.8%. When there was no nystagmus appearing after the initial position, all cases improved. These results support the canalolithiasis theory and the spontaneous improvement rate seems to be about 30%. It is thus important to check secondary nystagmus to predict the prognosis of the BPPV after positioning treatment.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::e77f56ce10ec95ae137b3206570f5b42 https://doi.org/10.3757/jser.56.436 Zobrazit plný text záznamu