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Optimal reassessment time for treatment response in posterior canal benign paroxysmal positional vertigo
Author(s) -
Song Mee Hyun,
Kong Tae Hoon,
Shim Dae Bo
Publication year - 2020
Publication title -
the laryngoscope
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.181
H-Index - 148
eISSN - 1531-4995
pISSN - 0023-852X
DOI - 10.1002/lary.28005
Subject(s) - medicine , benign paroxysmal positional vertigo , posterior semicircular canal , nystagmus , vertigo , otorhinolaryngology , surgery , significant difference , anesthesia , audiology
Objectives/Hypothesis The present study aimed to evaluate the optimal reassessment time for treatment response in posterior canal benign paroxysmal positional vertigo (PC‐BPPV) following the initial Epley maneuver. Study Design Prospective, single‐blinded, randomized study. Methods One hundred eight patients with PC‐BPPV agreed to participate. These patients received a single modified Epley maneuver (recommended by the 2008 American Academy of Otolaryngology–Head and Neck Surgery guidelines) daily until positional nystagmus disappeared during the Dix‐Hallpike maneuver 24 hours after the treatment. Repeated Dix‐Hallpike testing to reassess the treatment response was performed at 1 hour (post‐1 hour), every 24 hours (post‐24 hours) until the positional nystagmus resolved, 1 week (post‐1 week), and 1 month (post‐1 month) following the therapeutic maneuver. The difference in the resolution rates at post‐1 hour and post‐24 hours reassessment was analyzed, and the recurrence rates at post‐1 week and post‐1 month were evaluated. Results The resolution rate was 67.6% at post‐1 hour, which increased to 79.6% at post‐24 hours reassessment. There was a statistically significant difference in the results of the Dix‐Hallpike test between post‐1 hour and post‐24 hours follow‐up. After complete resolution, nine out of 108 patients (8.3%) demonstrated recurrence within 1 month. Conclusions Reassessment after 24 hours following the initial Epley maneuver is more advantageous than a 1‐hour follow‐up in patients with PC‐BPPV. This information may be helpful for clinicians in deciding the appropriate follow‐up period after treatment for PC‐BPPV. Level of Evidence 1b Laryngoscope , 130:496–499, 2020