Evidence map›Paper›PMID 37664131›Full record

ArticleNeurology. Clinical practice2023

Prevalence of Horizontal Canal Variant in 3,975 Patients With Benign Paroxysmal Positional Vertigo: A Cross-sectional Study.

Rajneesh Bhandari, Anita Bhandari, Yu-Hsiang Hsieh, Jonathan Edlow, Rodney Omron

Open access · greenAbstract read
In one paragraph

Article in Neurology. Clinical practice, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed, 2 pooled it
5.8field-weighted citation impact, top 3% of its field
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

17 citing papers in PubMed, 2 syntheses or guidelines pooled it, 47 citations in OpenAlex.

  1. Guideline
  2. Pooled it
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  4. Trial
  5. Article
  6. A Prospective Multi-Center Implementation Study to Improve the Diagnosis and Treatment of Benign Paroxysmal Positional Vertigo.Academic emergency medicine : official journal of the Society for Academic Emergency Medicine · 2026
    Article
  7. Proposal of a standardized testing protocol for BPPV: Using 3D simulations for insights into movement of otoliths during positional tests.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 · 2025
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  16. Case Report: Keep your eyes open! Nystagmus guides atypical BPPV.Frontiers in rehabilitation sciences · 2024
    Article
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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

5 authors at 1 institution in 1 country.

Rajneesh BhandariNeuroEquilibrium Diagnostic Systems Pvt Ltd. (RB); Vertigo and Ear Clinic (AB), Jaipur, India; Johns Hopkins School of Medicine (Y-HH, RO), Baltimore, MD; and Harvard Medical School (JE), Boston, MA.ORCID https://orcid.org/0000-0002-8351-6664
Anita BhandariNeuroEquilibrium Diagnostic Systems Pvt Ltd. (RB); Vertigo and Ear Clinic (AB), Jaipur, India; Johns Hopkins School of Medicine (Y-HH, RO), Baltimore, MD; and Harvard Medical School (JE), Boston, MA.ORCID https://orcid.org/0000-0002-4134-8885
Yu-Hsiang HsiehNeuroEquilibrium Diagnostic Systems Pvt Ltd. (RB); Vertigo and Ear Clinic (AB), Jaipur, India; Johns Hopkins School of Medicine (Y-HH, RO), Baltimore, MD; and Harvard Medical School (JE), Boston, MA.ORCID https://orcid.org/0000-0002-1616-8014
Jonathan EdlowNeuroEquilibrium Diagnostic Systems Pvt Ltd. (RB); Vertigo and Ear Clinic (AB), Jaipur, India; Johns Hopkins School of Medicine (Y-HH, RO), Baltimore, MD; and Harvard Medical School (JE), Boston, MA.ORCID https://orcid.org/0000-0001-6855-0912
Rodney OmronNeuroEquilibrium Diagnostic Systems Pvt Ltd. (RB); Vertigo and Ear Clinic (AB), Jaipur, India; Johns Hopkins School of Medicine (Y-HH, RO), Baltimore, MD; and Harvard Medical School (JE), Boston, MA.ORCID https://orcid.org/0000-0002-6981-2846
Greater Baltimore Medical Center · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Background and Objectives: Current understanding based on older studies is that pc-BPPV is far more common than hc-BPPV. Such studies are limited by small sample sizes, and often the supine roll test for hc-BPPV is not performed. To better estimate the prevalence of hc-BPPV, we studied a large cross-section of patients with VOG-diagnosed BPPV. Methods: Using a cross-sectional study of patients with BPPV, we investigated patients referred to NeuroEquilibrium specialty clinics throughout India between January 1, 2021, and December 31, 2021. All patients were evaluated with video oculography (VOG) during positional tests, and all diagnoses were confirmed by a neurotologist and neurologist. Results: Of 3,975 patients with VOG-confirmed and specialist-diagnosed BPPV (median age, 51 years; 56 Discussion: This study found that hc-BPPV is far more common than previously reported. It is important to perform the supine roll test in addition to the Dix-Hallpike in all patients suspected with BPPV. Better training to diagnose patients with BPPV and to accurately recognize the nystagmus pattern of hc-BPPV should be a priority.

Identifiers

PMID37664131
PMCPMC10473829
OpenAlexW4386100642

What OpenQuestion holds

Textmetadata
Read underepoch 390

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.