Evidence map›Paper›PMID 34938879›Full record

ArticleLaryngoscope investigative otolaryngology2021

Multitime point pepsin testing can double the rate of the diagnosis of laryngopharyngeal reflux.

Jinhong Zhang, Jinrang Li, Yanping Zhang, Qian Nie, Ran Zhang, Xiaoyu Wang, Xingwang Jiang, Yingying Wu, Runze Wu, Xinxin Bi and 4 more

Open access · goldAbstract read
In one paragraph

Article in Laryngoscope investigative otolaryngology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed
2.5field-weighted citation impact, top 10% 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

8 citing papers in PubMed, 17 citations in OpenAlex.

  1. Salivary Pepsin Test in the Diagnosis of Laryngopharyngeal Reflux Disease: Reality or Fallacy?World journal of otorhinolaryngology - head and neck surgery · 2026
    Article
  2. Observational
  3. [Characteristics performance of laryngopharyngeal reflux in narrow band imaging].Lin chuang er bi yan hou tou jing wai ke za zhi = Journal of clinical otorhinolaryngology head and neck surgery · 2023
    Article
  4. Review
  5. [Consistency analysis of pepsin immunohistochemistry and pepsin test box in the diagnosis of laryngopharyngeal reflux].Lin chuang er bi yan hou tou jing wai ke za zhi = Journal of clinical otorhinolaryngology head and neck surgery · 2023
    Article
  6. In response to the importance of 24-h hypopharyngeal-esophageal impedance-pH monitoring for the treatment of laryngopharyngeal reflux.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 · 2022
    Article
  7. Does hypopharyngeal-esophageal multichannel intraluminal impedance-pH monitoring for the diagnosis of laryngopharyngeal reflux have to be 24 h?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 · 2022
    Article
  8. 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

14 authors at 1 institution in 1 country.

Jinhong ZhangDepartment of Otolaryngology School of Medicine, South China University of Technology Guangzhou China.ORCID https://orcid.org/0000-0001-6293-9871
Jinrang LiDepartment of Otolaryngology School of Medicine, South China University of Technology Guangzhou China.
Yanping ZhangDepartment of Otolaryngology The Eighth Medical Center of Chinese PLA General Hospital Beijing China.
Qian NieDepartment of Otolaryngology The Sixth Medical Center of PLA General Hospital of Beijing Beijing China.ORCID https://orcid.org/0000-0002-3544-4387
Ran ZhangDepartment of Otolaryngology The Sixth Medical Center of PLA General Hospital of Beijing Beijing China.
Xiaoyu WangDepartment of Otolaryngology The Sixth Medical Center of PLA General Hospital of Beijing Beijing China.
Xingwang JiangDepartment of Otolaryngology The Eighth Medical Center of Chinese PLA General Hospital Beijing China.
Yingying WuDepartment of Otolaryngology The Eighth Medical Center of Chinese PLA General Hospital Beijing China.
Runze WuDepartment of Otolaryngology The Eighth Medical Center of Chinese PLA General Hospital Beijing China.
Xinxin BiDepartment of Otolaryngology The Eighth Medical Center of Chinese PLA General Hospital Beijing China.
Xiaohuan CuiDepartment of Otolaryngology The Eighth Medical Center of Chinese PLA General Hospital Beijing China.
Hui SongDepartment of Otolaryngology The Eighth Medical Center of Chinese PLA General Hospital Beijing China.
Taotao RanDepartment of Otolaryngology The Eighth Medical Center of Chinese PLA General Hospital Beijing China.
Lina LiDepartment of Otolaryngology The Eighth Medical Center of Chinese PLA General Hospital Beijing China.
Chinese PLA General Hospital · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveTo study the value of multitime point salivary pepsin testing (MTPSPT) for the diagnosis of laryngopharyngeal reflux (LPR). STUDY

designProspective noncontrolled.

methodsFor patients who met the enrollment criteria, the reflux symptom index (RSI) and reflux finding score (RFS) were calculated and salivary pepsin testing was performed. The pepsin test was performed every hour from 7:00 a.m. to 6:00 p.m. by collecting fresh saliva samples. A single positive test result was needed for the diagnosis of LPR. The consistency in the diagnosis of LPR between the two methods was compared with the weighted Cohen's kappa statistic.

resultsA total of 204 patients were included. The kappa value between the two methods was 0.566 (

conclusionThe use of the result of a single salivary pepsin test in the morning yields a relatively higher rate of missed diagnosis of LPR, and multitime point testing through a day increased the accuracy and sensitivity of detection of LPR twofold compared to a single morning fasting sample. LEVEL OF EVIDENCE: 3.

Indexed as

consistencylaryngopharyngeal refluxpepsinsaliva

Identifiers

PMID34938879
PMCPMC8665477
OpenAlexW3215859730

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.