Evidence map›Paper›PMID 40968235›Full record

SynthesisAnnals of surgical oncology2026

The Effect of Chewing Gum on Postoperative Gastrointestinal Function Recovery: A Systematic Review and Meta-analysis.

Chaoyang Wang, Bing Li, ZiQian Wang, XinXin Ji, YiWei Cao, ShuXin Xue, YaGuang Han, Kejia Liu, ZeXin Li

Erratum issuedAbstract readSystematic ReviewMeta-Analysis
PubMed Publisher
In one paragraph

Synthesis in Annals of surgical oncology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Not yet cited in PubMed.

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0cells of the map it votes in
0citing papers in PubMed
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1 · What the graph read from it

What it found

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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

5 · Who and what money

Authors and funding

9 authors.

Chaoyang WangDepartment of Colorectal and Anal Surgery, Huaihe Hospital of Henan University, Kaifeng, China. wangchaoyang10475@163.com.
Bing LiDepartment of Colorectal and Anal Surgery, Huaihe Hospital of Henan University, Kaifeng, China.
ZiQian WangDepartment of Colorectal and Anal Surgery, Huaihe Hospital of Henan University, Kaifeng, China.
XinXin JiSchool of Mathematics and Statistics, Henan University, Kaifeng, China.
YiWei CaoDepartment of Colorectal and Anal Surgery, Huaihe Hospital of Henan University, Kaifeng, China.
ShuXin XueDepartment of Colorectal and Anal Surgery, Huaihe Hospital of Henan University, Kaifeng, China.
YaGuang HanDepartment of Colorectal and Anal Surgery, Huaihe Hospital of Henan University, Kaifeng, China.
Kejia LiuDepartment of Colorectal and Anal Surgery, Huaihe Hospital of Henan University, Kaifeng, China.
ZeXin LiDepartment of Hepatobiliary, Pancreatic, and Splenic Surgery & Bariatric and Metabolic Surgery, Huaihe Hospital of Henan University, Kaifeng, China. lizexin403@126.com.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveThis study systematically evaluates the effectiveness of chewing gum as a nonpharmacological intervention to facilitate gastrointestinal recovery after gastrointestinal surgery.

methodsA literature search was conducted in PubMed, Embase, and Cochrane Library databases up to factor influencing patient recovery. 18, 2025, focusing on randomized controlled trials comparing chewing gum use versus standard care postsurgery. Data were synthesized through systematic review and meta-analysis according to PRISMA guidelines. Key outcomes included time to first postoperative flatus and bowel movement, hospital stay length, and incidence of postoperative bowel obstruction.

resultsThirty-five trials involving 4,898 patients met the inclusion criteria. Meta-analysis showed significant reductions in time to first postoperative flatus (weighted mean difference [WMD] = -12.19 hours; 95% confidence interval [CI] [-15.41, -8.98]; P < 0.00001), time to first bowel movement (WMD = -19.54 hours; 95% CI [-25.39, -13.68]; P < 0.00001), and hospital stay (WMD = -0.93 days; 95% CI [-1.3, -0.56]; P < 0.00001). A decrease in postoperative bowel obstruction incidence was also noted (relative risk [RR] = 0.7; 95% CI [0.56, 0.89]; P = 0.004). No significant effects on bloating, vomiting, nausea, or time to first feeding were observed.

conclusionsChewing gum is a safe and cost-effective adjunct to postoperative care, enhancing gastrointestinal recovery. Its inclusion in postoperative protocols is recommended for appropriate patients to improve recovery outcomes. Further studies are needed to examine long-term benefits and implementation in clinical settings.

Indexed as

Chewing GumDigestive System Surgical ProceduresIntestinal ObstructionPostoperative ComplicationsRecovery of FunctionHumansLength of StayRandomized Controlled Trials as TopicChewing GumChewing gumGastrointestinal functionGastrointestinal surgeryMeta-analysis

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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.