Evidence map›Paper›PMID 34595864›Full record

ArticleJournal of clinical neurology (Seoul, Korea)2021

Diagnostic Value of Straight Head Hanging in Posterior Canal Benign Paroxysmal Positional Vertigo.

Xia Ling, Hyo Jung Kim, Jong Hee Lee, Jeong Yoon Choi, Xu Yang, Ji Soo Kim

Open access · diamondAbstract read
In one paragraph

Article in Journal of clinical neurology (Seoul, Korea), 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed
0.5field-weighted citation impact, top 37% 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

4 citing papers in PubMed, 7 citations in OpenAlex.

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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

6 authors at 3 institutions in 2 countries.

Xia LingDepartment of Medicine, Seoul National University College of Medicine, Seoul, Korea.ORCID https://orcid.org/0000-0001-7773-6129
Hyo Jung KimResearch Administration Team, Seoul National University Bundang Hospital, Seongnam, Korea.ORCID https://orcid.org/0000-0002-2027-6341
Jong Hee LeeDizziness Center, Seoul National University Bundang Hospital, Seongnam, Korea.ORCID https://orcid.org/0000-0002-3629-291X
Jeong Yoon ChoiDizziness Center, Seoul National University Bundang Hospital, Seongnam, Korea.ORCID https://orcid.org/0000-0003-2159-9967
Xu YangDepartment of Neurology, Aerospace Center Hospital, Peking University Aerospace School of Clinical Medicine, Beijing, China.ORCID https://orcid.org/0000-0002-3615-3063
Ji Soo KimDizziness Center, Seoul National University Bundang Hospital, Seongnam, Korea.ORCID https://orcid.org/0000-0002-1508-2024
Seoul National University · KRSeoul National University Bundang Hospital · KRPeking University · CN

Funding

MYUNG-IN PHARM.CO., LTD. 06-2019-224
6 · The paper itself

Abstract

background and purposeTo determine the diagnostic value of straight head hanging (SHH) in benign paroxysmal positional vertigo involving the posterior semicircular canal (PC-BPPV).

methodsWe retrospectively included 62 patients (age=56.2±15.0 years, 47 female) with unilateral PC-BPPV who underwent both the Dix-Hallpike maneuver and SHH before receiving canalith repositioning therapy (CRT) between September 2017 and July 2020 at the Dizziness Center of Seoul National University Bundang Hospital in South Korea (16 patients, 25.8%) or the Neurology Outpatient Clinic of Aerospace Central Hospital in China (46 patients, 74.2%). SHH was performed before (

resultsTorsional upbeat nystagmus typical of PC-BPPV was induced during SHH in 52 (83.9%) patients, and the incidence of this type of positional nystagmus did not differ between the groups A and B (79.3% vs. 87.9%,

conclusionsSHH is effective for diagnosing PC-BPPV. Given its simplicity, SHH may be performed before the Dix-Hallpike maneuver, and CRT may be attempted thereafter when the typical positional nystagmus for unilateral PC-BPPV is induced during SHH.

Indexed as

benign paroxysmal positional vertigodizzinessnystagmusvertigo

Identifiers

PMID34595864
PMCPMC8490902
OpenAlexW3193501734

What OpenQuestion holds

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LicenceCC BY-NC
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.