Application of the reformed canalith repositioning maneuver by videonystagmography guarding for benign paroxysmal positional vertigo

Objective To investigate the clinical value of the modified canalith repositioning maneuver by videonystagmography guarding for benign paroxysmal positional vertigo(BPPV).Methods Dix-Hallpike test and turning head test were applied to diagnose the 56cases of BPPV. The modified Epley maneuver or modified Semont and Epley maneuver was applied to 44cases of PC-BPPV,the modified Barbecue maneuver was applied to 12cases of HC-BPPV.Results After treatment of modified Epley maneuver or modified Semont and Epley maneuver in 44cases of PCBPPV,positional vertigo disappeared completely in 38cases(86.36%),and in 4cases(9.09%)the therapy was effective.In 2case(4.55%)the therapy had no effect.After treatment of modified Barbecue maneuver in 12cases of HC-BPPV,positional vertigo disappeared completely in 8cases(66.67%),and in 4(33.33%)the therapy was effective.1patient transformed from PC-BPPV to HC-BPPV during modified Epley maneuver,and which got well by modified Barbecue maneuver.Conclusion For benign paroxysmal positional vertigo,the canalith repositioning maneuver by videonystagmography guarding was recommended.