Evidence map›Paper›PMID 34993568›Full record

SynthesisInternational journal of colorectal disease2022

The effect of coffee/caffeine on postoperative ileus following elective colorectal surgery: a meta-analysis of randomized controlled trials.

Tzu-Wei Yang, Chi-Chih Wang, Wen-Wei Sung, Wen-Chien Ting, Chun-Che Lin, Ming-Chang Tsai

Open access · hybridAbstract readMeta-Analysis
In one paragraph

Synthesis in International journal of colorectal disease, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed, 2 pooled it
3.9field-weighted citation impact, top 6% 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, 2 syntheses or guidelines pooled it, 19 citations in OpenAlex.

  1. Pooled it
  2. Gum Chewing and Coffee Consumption but not Caffeine Intake Improve Bowel Function after Gastrointestinal Surgery: a Systematic Review and Network Meta-analysis.Journal of gastrointestinal surgery : official journal of the Society for Surgery of the Alimentary Tract · 2023
    Pooled it
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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 1 country.

Tzu-Wei YangSchool of Medicine and Institute of Medicine, Chung Shan Medical University, Taichung, 402, Taiwan.
Chi-Chih WangSchool of Medicine and Institute of Medicine, Chung Shan Medical University, Taichung, 402, Taiwan.
Wen-Wei SungSchool of Medicine and Institute of Medicine, Chung Shan Medical University, Taichung, 402, Taiwan.
Wen-Chien TingSchool of Medicine and Institute of Medicine, Chung Shan Medical University, Taichung, 402, Taiwan.
Chun-Che LinDepartment of Internal Medicine, China Medical University Hospital, Taichung, 404, Taiwan.
Ming-Chang TsaiSchool of Medicine and Institute of Medicine, Chung Shan Medical University, Taichung, 402, Taiwan. tsaimc1110@gmail.com.
Chung Shan Medical University Hospital · TWChina Medical University · TWChung Shan Medical University · TW

Funding

Chung Shan Medical University Hospital CSH-2018-C-030
6 · The paper itself

Abstract

purposePostoperative ileus (POI) is the most common complication of elective colon resection. Coffee or caffeine has been reported to be useful in improving gastrointestinal function after abdominal surgery. This study aimed to investigate the effect of coffee/caffeine on POI in patients undergoing elective colorectal surgery.

methodsWe searched Cochrane library, Embase, PubMed, and ClinicalTrials.gov (until July 2021) to identify randomized controlled trials (RCTs) evaluating the effect of coffee or caffeine on bowel movements and POI in patients undergoing elective colorectal surgery. The mean difference (MD) for continuous outcomes and risk ratio (RR) for dichotomous outcomes were calculated and are presented with 95% confidence intervals (CIs). A random effects model was used in all meta-analyses.

resultsA total of four RCTs including 312 subjects met the inclusion criteria and were included in the meta-analysis. Postoperative coffee or caffeine consumption decreased the time to first bowel movement (MD, - 10.36 h; 95% CI, - 14.61 to - 6.11), shortened the length of hospital stay (MD, - 0.95 days; 95% CI, - 1.57 to - 0.34), and was associated with a decreased risk of the use of any laxatives after the procedure (RR, 0.64; 95% CI, 0.44 to 0.92). The time to first flatus, time to tolerance of solid food, risk of any postoperative complication, postoperative reinsertion of a nasogastric (NG) tube, and anastomotic leakage showed no statistical differences between groups.

conclusionPostoperative coffee or caffeine consumption improved bowel movement and decreased the duration of hospital stay in patients undergoing elective colorectal surgery. This method is safe and can prevent or treat POI.

Indexed as

Colorectal SurgeryIleusCaffeineCoffeeColectomyHumansPostoperative ComplicationsRandomized Controlled Trials as TopicTime FactorsCaffeineCoffeeCaffeineCoffeeColectomyColorectal surgeryPostoperative ileus

Identifiers

PMID34993568
PMCPMC8885519
OpenAlexW4205782813

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.