Evidence map›Paper›PMID 32731903›Full record

ArticleBiomedical engineering online2020

Changes in bowel sounds of inpatients undergoing general anesthesia.

Guojing Wang, Mingjun Wang, Hongyun Liu, Suping Zhao, Lu Liu, Weidong Wang

Registry-linked trialOpen access · goldAbstract read
In one paragraph

Article in Biomedical engineering online, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT07496697 (Investigation of Bowel Motility Changes Following Electroacupuncture at NP82), which is not on this map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed
1.0field-weighted citation impact, top 20% 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.

NCT07496697 nacompletednot on this mapstarted 2026, after this paper: background citation

Investigation of Bowel Motility Changes Following Electroacupuncture at NP82 (Tongbian) and SP15 (Daheng) Acupoint Pair in Healthy Volunteers

TypeinterventionalSponsorUniversity of Medicine and Pharmacy at Ho Chi Minh CityRan2026 to 2026Enrolled30ConditionsGastrointestinal Motility, HealthyArmsElectroacupuncture at NP82 (Tongbian) and SP15 (Daheng)
3 · Its place in the literature

Who cites it

9 citing papers in PubMed, 17 citations in OpenAlex.

  1. Review
  2. Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. Review
  8. Peppermint drop effect on ileus following cesarean section.Journal of family medicine and primary care · 2022
    Article
  9. Automated Bowel Sound Analysis: An Overview.Sensors (Basel, Switzerland) · 2021
    Review
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 1 institution in 1 country.

Guojing WangKey Laboratory of Biomedical Engineering and Translational Medicine, Ministry of Industry and Information Technology, Chinese PLA General Hospital, Beijing, China.ORCID http://orcid.org/0000-0002-6221-7833
Mingjun WangAnesthesia and Operation Center, Chinese PLA General Hospital, Beijing, China.
Hongyun LiuKey Laboratory of Biomedical Engineering and Translational Medicine, Ministry of Industry and Information Technology, Chinese PLA General Hospital, Beijing, China.
Suping ZhaoCollege of Otolaryngology Head and Neck Surgery, Chinese PLA General Hospital, Beijing, China.
Lu LiuCollege of Otolaryngology Head and Neck Surgery, Chinese PLA General Hospital, Beijing, China.
Weidong WangKey Laboratory of Biomedical Engineering and Translational Medicine, Ministry of Industry and Information Technology, Chinese PLA General Hospital, Beijing, China. wang_weidong301@163.com.
Chinese PLA General Hospital · CN

Funding

National Natural Science Foundation of China 61701540
6 · The paper itself

Abstract

backgroundGeneral anesthesia can affect intestinal function, but there is no objective, practical and effective indicator to evaluate the inhibition and recovery of intestinal function. The main objectives of this study were to assess whether bowel sounds (BSs) changed before, immediately after and 3 h after general anesthesia, and whether these changes in BSs are an effective indicator of intestinal function and an accurate guide for postoperative feeding.

methodsWe randomly selected 26 inpatients and collected three sets of 5-min continuous BS data before the operation (Pre-op), immediately after the operation (Pro-op) and 3 h after the operation (3 h-Pro-op) for each patient. Then, the linear and nonlinear characteristic values (CVs) of each effective bowel sound were extracted and paired t tests and rank-sum tests were used to evaluate the changes in the BSs.

resultsThe differences in CVs, between Pre-op and Pro-op, as well as between Pro-op and 3 h-Pro-op, were statistically significant (p < 0.05). However, there are no statistically significant differences between all the CVs between Pre-op and 3 h-Pro-op (p > 0.05).

conclusionBSs change before and after general anesthesia. Furthermore, the BSs are weakened due to general anesthesia and recover to the pre-op state 3 h later. Therefore, the BSs can be an indicator of intestinal function under general anesthesia, so as to provide guidance for postoperative feeding, which is of considerable clinical significance.

Indexed as

SoundAdolescentAdultAgedAnesthesia, GeneralChildFemaleHumansIntestinesMaleMiddle AgedYoung AdultBowel soundsGeneral anesthesiaIntestinal function

Identifiers

PMID32731903
PMCPMC7392822
OpenAlexW3045689845

What OpenQuestion holds

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LicenceCC BY
Read underepoch 390

Registered trials

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.