Evidence map›Paper›PMID 35562679›Full record

Observational studyBMC pregnancy and childbirth2022

Risk of adverse fetal outcomes following nonobstetric surgery during gestation: a nationwide population-based analysis.

Pei-Han Fu, Chia-Hung Yu, Yi-Chen Chen, Chin-Chen Chu, Jen-Yin Chen, Fu-Wen Liang

Abstract readObservational Study
In one paragraph

Observational study in BMC pregnancy and childbirth, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed
–field-weighted citation impact
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

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3 · Its place in the literature

Who cites it

10 citing papers in PubMed.

  1. Review
  2. Stent-assisted coiling of a ruptured renal artery aneurysm in a third trimester pregnant patient.Journal of vascular surgery cases and innovative techniques · 2026
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4 · The record

Corrections and comments

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5 · Who and what money

Authors and funding

6 authors.

Pei-Han Fu *Department of Anesthesiology, Chi Mei Medical Center, Tainan, Taiwan.
Chia-Hung Yu *Department of Anesthesiology, Chi Mei Medical Center, Tainan, Taiwan.
Yi-Chen ChenDepartment of Medical Research, Chi Mei Medical Center, Tainan, Taiwan.
Chin-Chen ChuDepartment of Anesthesiology, Chi Mei Medical Center, Tainan, Taiwan.
Jen-Yin ChenDepartment of Anesthesiology, Chi Mei Medical Center, Tainan, Taiwan.
Fu-Wen LiangDepartment of Public Health, College of Health Sciences, Kaohsiung Medical University, Kaohsiung, Taiwan. fliang81@gmail.com.

Funding

Chi Mei Medical Center CMFHR10926Ministry of Science and Technology, Taiwan MOST 110-2314-B-037-055
6 · The paper itself

Abstract

backgroundLiterature suggests that nonobstetric surgery during gestation is associated with a higher risk of spontaneous abortion, prematurity, and a higher cesarean section rate, but the direct impact on fetal outcomes is still unclear. In this study, we aimed to investigate whether nonobstetric surgery during pregnancy is associated with negative fetal outcomes by analysing a nation-wide database in Taiwan.

methodsThis population-based retrospective observational case-control study was based on the linkage of Taiwan's National Health Insurance Research Database, Birth Reporting Database, and Maternal and Child Health Database between 2004 and 2014. For every pregnancy with nonobstetric surgery during gestation, four controls were randomly matched according to maternal age and delivery year. We estimated adjusted odds ratios (aOR) and 95% confidence intervals (CIs) of adverse fetal outcomes with the non-surgery group as the reference. The primary outcomes involved stillbirth, prematurity, low birth weight, low Apgar scores, and neonatal and infant death.

resultsAmong 23,721 identified pregnancies, 4,747 underwent nonobstetric surgery. Pregnancies with nonobstetric surgery had significantly higher risks of prematurity (aOR: 1.46; 95% CI: 1.31-1.62), lower birth weight (aOR: 1.49; 95% CI: 1.33-1.67), Apgar scores < 7 (1 min, aOR: 1.58; 95% CI: 1.33-1.86; 5 min, aOR: 1.34; 95% CI: 1.03-1.74), neonatal death (aOR: 2.01; 95% CI: 1.18-3.42), and infant death (aOR: 1.69; 95% CI: 1.12-2.54) than those without nonobstetric surgery after adjustment for socioeconomic deprivation, hospital level, and other comorbidities. Surgery performed in the third trimester was associated with a significantly increased rate of prematurity (aOR: 1.38; 95% CI: 1.03-1.85), but lower rates of stillbirth (aOR: 0.1; 95% CI: 0.01-0.75) and Apgar score < 7 at the 5

conclusionsPregnancies with nonobstetric surgery during gestation were associated with increased risks of prematurity, low birth weight, low Apgar scores, neonatal and infant death, longer admission, and higher medical expenses than those without surgery. Furthermore, surgery in the third trimester was associated with a higher rate of prematurity than surgery performed in the first trimester.

trial registrationNot applicable.

Indexed as

Premature BirthStillbirthCase-Control StudiesCesarean SectionChildFemaleHumansInfantInfant DeathInfant, NewbornPregnancyPregnancy OutcomeRetrospective StudiesFetal outcomesNeonatal outcomesNonobstetric surgery

Identifiers

PMID35562679
PMCPMC9102935

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Registered trials

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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.