Long-term outcomes of Li repositioning maneuver for benign paroxysmal positional vertigo

ZHANG Hao; LI Jinrang; GUO Pengfei

doi:10.3969/j.issn.1672-2922.2015.03.023

Abstract：Objective To study clinical features of benign paroxysmal positional vertigo (BPPV) and to assess long term outcomes of the Li repositioning maneuver in treating patients with BPPV. Methods Clinical manifestations of 258 patients (86 males and 172 females, aged from 13 to 84 years, median=52 years) with single semicircular canal BPPV treated with the Li repositioning maneuver from July 2009 to April 2014 were analyzed retrospectively. The course of disease ranged from half day to 10 years (median = 8.5 days). BPPV was determined to involve the posterior semicircular canal in 72 cases (27.9%), the horizontal semicir-cular canal in 120 cases (46.5%) and the“anterior semicircular canal”in 66 cases (25.6%). Results At one week follow up, symptoms were completed resolved in 196 patients (76.0%), improved in 45 patients (17.4%) and unchanged in 17 patients (6.6%). At 3 months, symptoms remained resolved in 209 patients (81.0%), improved in 15 patients (5.8%) and unchanged in 15 patients (5.8%);and had recurred in 19 patients (7.4%). The short and long term overall effective rates were 93.4%and 86.8%, respectively. After a single session of Li repositioning maneuver, symptoms resolved in 163 patients (63.2%), improved in 80 patients (31.0%) and remained unchanged in 15 patients (5.8%), yielding an overall one session effective rate of 94.2%. The overall long term effective rate was not different when compared among various semicircular ca-nal origins (p>0.05), and similar with results reported in previous studies. Conclusion The Li repositioning maneuver is an effective and simple treatment for patients with BPPV and can be administered in office.