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Objective <p>To evaluate video head impulse testing (vHIT) outcomes in patients with benign paroxysmal positional vertigo (BPPV) before canalith repositioning maneuver (CRM), immediately after treatment, and 1 week post-treatment.</p> Study design <p>Prospective before–after study.</p> Setting <p>Tertiary referral center.</p> Patients <p>Of 156 patients with vertigo and positional nystagmus, 63 were diagnosed with BPPV using standard maneuvers; 51 had posterior canal BPPV, 11 had lateral canal BPPV and 1 had anterior canal BPPV. All underwent vHIT to assess vestibulo-ocular reflex (VOR) gain across all 6 semicircular canals and completed the Dizziness Handicap Inventory before and after treatment.</p> Interventions <p>CRMs specific to the affected canal.</p> Main outcome measures <p>VOR gain and Dizziness Handicap Inventory scores before and after CRM.</p> Results <p>At pre-treatment, 59 patients (93.7%) exhibited VOR gains within normative limits. Only four patients (6.3%) showed decreased VOR gains, all of whom were diagnosed with posterior canal BPPV. VOR gain did not differ significantly across pre-treatment, immediate post-treatment, and 1-week assessments. No corrective saccades were detected.</p> Conclusions <p>vHIT showed no significant post-treatment changes and may have limited incremental value in the routine evaluation of isolated BPPV cases.</p>

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Video head impulse testing before and after canalith repositioning for benign paroxysmal positional vertigo

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2026年5月5日

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  • Thanatporn Vongviriyangkoon,
  • Siriporn Limviriyakul,
  • Kanthong Thongyai,
  • Suvajana Atipas,
  • Sarun Prakairungthong,
  • Kanokrat Suvarnsit

摘要

Objective

To evaluate video head impulse testing (vHIT) outcomes in patients with benign paroxysmal positional vertigo (BPPV) before canalith repositioning maneuver (CRM), immediately after treatment, and 1 week post-treatment.

Study design

Prospective before–after study.

Setting

Tertiary referral center.

Patients

Of 156 patients with vertigo and positional nystagmus, 63 were diagnosed with BPPV using standard maneuvers; 51 had posterior canal BPPV, 11 had lateral canal BPPV and 1 had anterior canal BPPV. All underwent vHIT to assess vestibulo-ocular reflex (VOR) gain across all 6 semicircular canals and completed the Dizziness Handicap Inventory before and after treatment.

Interventions

CRMs specific to the affected canal.

Main outcome measures

VOR gain and Dizziness Handicap Inventory scores before and after CRM.

Results

At pre-treatment, 59 patients (93.7%) exhibited VOR gains within normative limits. Only four patients (6.3%) showed decreased VOR gains, all of whom were diagnosed with posterior canal BPPV. VOR gain did not differ significantly across pre-treatment, immediate post-treatment, and 1-week assessments. No corrective saccades were detected.

Conclusions

vHIT showed no significant post-treatment changes and may have limited incremental value in the routine evaluation of isolated BPPV cases.