Evidence map›Paper›PMID 39833058›Full record

SynthesisMedicine2025

Postural crisis in patients undergoing canalith repositioning procedures for posterior canal benign paroxysmal positional vertigo: A systematic review and meta-analysis.

Yee-Hyuk Kim, Hee-Jun Park, Jae-Ho Yoo

Abstract readSystematic ReviewMeta-Analysis
In one paragraph

Synthesis in Medicine, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed, 1 pooled it
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

3 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Guideline
  2. Shigeno correction technique is effective in reducing postural crises in the treatment of posterior canal benign paroxysmal positional vertigo.European archives of oto-rhino-laryngology : official journal of the European Federation of Oto-Rhino-Laryngological Societies (EUFOS) : affiliated with the German Society for Oto-Rhino-Laryngology - Head and Neck Surgery · 2026
    Article
  3. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

3 authors.

Yee-Hyuk KimDepartment of Otorhinolaryngology-Head & Neck Surgery, Daegu Catholic University School of Medicine, Daegu, Korea.ORCID 0000-0002-3412-6758
Hee-Jun ParkDepartment of Otorhinolaryngology-Head & Neck Surgery, Daegu Catholic University Medical Center, Daegu, Korea.
Jae-Ho YooDepartment of Otorhinolaryngology-Head & Neck Surgery, Daegu Catholic University Medical Center, Daegu, Korea.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe Epley or Semont maneuver is performed for posterior canal benign paroxysmal positional vertigo (PC-BPPV). The postural crisis indicates the phenomenon that the patient experiences severe dizziness, is unable to maintain the sitting posture, and suddenly falls backward or sideways on the examination table when returning to the sitting position, which is the final step of the canalith repositioning procedure (CRP). The postural crisis increases the risk of falls during CRP. This meta-analysis aimed to determine the incidence of postural crisis among patients who underwent CRP for PC-BPPV.

methodsLiterature searches were conducted on PubMed, Embase, Cochrane Library, Web of Science, and Google Scholar. The random-effects model was utilized based on the results of the heterogeneity using the Tau2 test and I2 statistic.

resultsWe included 5 nonrandomized studies that reported the total number of cases of CRP for PC-BPPV and postural crisis. In each study, postural crisis occurred in 4.0% to 14.9% of the subjects. Of a total of 1177 cases, the incidence of postural crisis in all CRP cases was 10% (95% confidence interval = 6%-15%).

conclusionBPPV is the most common among peripheral vestibular diseases, usually occurring in the posterior semicircular canal. Therefore, 10% of cases with CRP for PC-BPPV is significant. When performing CRP for PC-BPPV, considering that the postural crisis related to increasing the risk of falls may occur, preparations for the phenomenon should be made in advance.

Indexed as

Benign Paroxysmal Positional VertigoDizzinessPatient PositioningAccidental FallsHumansPostureSemicircular Canals

Identifiers

PMID39833058
PMCPMC11749583

What OpenQuestion holds

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Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.