Evidence map›Paper›PMID 42159675›Full record

SynthesisJournal of anesthesia2026

Efficacy of BiPAP/CPAP versus COT in patients with obstructive sleep apnea or obesity undergoing sedated gastroenteroscopy: a meta-analysis.

Weizhong Wang, Pan Zhang, Ting Xu, Zhijuan Wang

Abstract readMeta-AnalysisReview
PubMed Publisher
In one paragraph

Synthesis in Journal of anesthesia, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing papers in PubMed
–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

0 citing papers in PubMed.

No citing paper in PubMed yet.

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

4 authors.

Weizhong WangDepartment of Surgical Intensive Care Unit, Shaoxing People's Hospital, Shaoxing, Zhejiang, China.
Pan ZhangDepartment of Surgical Intensive Care Unit, Shaoxing People's Hospital, Shaoxing, Zhejiang, China.
Ting XuDepartment of Surgical Intensive Care Unit, Shaoxing People's Hospital, Shaoxing, Zhejiang, China.
Zhijuan WangNursing Department, Shaoxing People's Hospital, No. 568 North Zhongxing Road, Shaoxing, 312000, Zhejiang, China. 296942649@qq.com.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Patients with obstructive sleep apnea or obesity are at high risk for hypoxemia during sedated gastroenteroscopy. This meta-analysis compares the efficacy of bilevel or continuous positive airway pressure versus conventional oxygen therapy in preventing hypoxemia and reducing airway interventions. We systematically searched PubMed, Embase, Cochrane Library, and Web of Science for RCTs up to September 2025. Eight RCTs (1012 patients) were included; all controls received conventional oxygen therapy. Compared to conventional oxygen therapy, bilevel or continuous positive airway pressure was associated with a significant reduction in hypoxemia (OR 0.26, 95% CI 0.16-0.42), severe hypoxemia (OR 0.15, 95% CI 0.05-0.39), and need for jaw lift (OR 0.21, 95% CI 0.14-0.32), with no significant difference in nausea/vomiting. Subgroup analyses consistently favored bilevel or continuous positive airway pressure. The simplified device SuperNO

Indexed as

Continuous Positive Airway PressureEndoscopy, GastrointestinalHypoxiaObesityOxygen Inhalation TherapySleep Apnea, ObstructiveHumansRandomized Controlled Trials as TopicAirway interventionBilevel positive airway pressureColonoscopyContinuous positive airway pressureGastroscopyHypoxemiaObesityObstructive sleep apnea

Identifiers

PMID42159675

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.