The patients on whom an EM was performed had a six and half times more chance of their clinical symptoms improving compared to the control group of patients (OR=6.52 95% CI, 4.17–10.20). The meta-analysis was performed using the program RevMan 5.0. The search words used were: canalith repositioning procedure, canalith repositioning manoeuvre, Epley manoeuvre, Dix-Hallpike, benign vertigo, benign positional vertigo, benign paroxysmal positional vertigo and BPPV. Searches were made in the databases of MEDLINE (PubMed), in the Cochrane collection (Cochrane Register of controlled studies), BIREME and LILACS (all of them up to December 2008). To evaluate the effectiveness of Epley manoeuvre (EM) in the treatment of BPPV using a critical review of the medical literature and a meta-analysis. Benign paroxysmal positional vertigo (BPPV) is one of the most common conditions that cause the physiognomy of peripheral vertigo.
