Evidence map›Paper›PMID 31842795›Full record

ArticleBMC pregnancy and childbirth2019

Effect of epidural analgesia in trial of labor after cesarean on maternal and neonatal outcomes in China: a multicenter, prospective cohort study.

Jing Sun, Xuetao Yan, Aiwu Yuan, Xiaolei Huang, Yuci Xiao, Liwei Zou, Danyong Liu, Ting Huang, Zhao Zheng, Yuantao Li

Open access · goldAbstract readMulticenter Study
In one paragraph

Article in BMC pregnancy and childbirth, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
7citing papers in PubMed, 1 pooled it
2.8field-weighted citation impact, top 9% 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

7 citing papers in PubMed, 1 synthesis or guideline pooled it, 20 citations in OpenAlex.

  1. FIGO good practice recommendations for vaginal birth after cesarean section.International journal of gynaecology and obstetrics: the official organ of the International Federation of Gynaecology and Obstetrics · 2025
    Guideline
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  6. Observational
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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

10 authors at 3 institutions in 1 country.

Jing SunDepartment of Anesthesiology, Affiliated Shenzhen Maternity & Child Healthcare Hospital, Southern Medical University, No.2004 Hongli Road, Futian District, Shenzhen, 518028, Guangdong, China.
Xuetao YanDepartment of Anesthesiology, Bao'an Maternal and Child Health Hospital, Jinan University, Shenzhen, 518100, China.
Aiwu YuanDepartment of Anesthesiology, Longgang District Maternity & Child Healthcare Hospital of Shenzhen City, Shenzhen, 518172, China.
Xiaolei HuangDepartment of Anesthesiology, Affiliated Shenzhen Maternity & Child Healthcare Hospital, Southern Medical University, No.2004 Hongli Road, Futian District, Shenzhen, 518028, Guangdong, China.
Yuci XiaoDepartment of Anesthesiology, Affiliated Shenzhen Maternity & Child Healthcare Hospital, Southern Medical University, No.2004 Hongli Road, Futian District, Shenzhen, 518028, Guangdong, China.
Liwei ZouDepartment of Anesthesiology, Affiliated Shenzhen Maternity & Child Healthcare Hospital, Southern Medical University, No.2004 Hongli Road, Futian District, Shenzhen, 518028, Guangdong, China.
Danyong LiuDepartment of Anesthesiology, Affiliated Shenzhen Maternity & Child Healthcare Hospital, Southern Medical University, No.2004 Hongli Road, Futian District, Shenzhen, 518028, Guangdong, China.
Ting HuangDepartment of Obstetrics, Affiliated Shenzhen Maternity & Child Healthcare Hospital, Southern Medical University, Shenzhen, 518028, Guangdong, China.
Zhao ZhengDepartment of Anesthesiology, Affiliated Shenzhen Maternity & Child Healthcare Hospital, Southern Medical University, No.2004 Hongli Road, Futian District, Shenzhen, 518028, Guangdong, China.
Yuantao LiDepartment of Anesthesiology, Affiliated Shenzhen Maternity & Child Healthcare Hospital, Southern Medical University, No.2004 Hongli Road, Futian District, Shenzhen, 518028, Guangdong, China. Liyuantao6788@yeah.net.
Shenzhen Maternity and Child Healthcare Hospital · CNSouthern Medical University · CNMaternal and Child Health Care Hospital of Bao'an · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe trial of labor after cesarean section (TOLAC) is a relatively new technique in mainland of China, and epidural analgesia is one of the risk factors for uterine rupture. This study aimed to evaluate the effect of epidural analgesia on primary labor outcome [success rate of vaginal birth after cesarean (VBAC)], parturient complications and neonatal outcomes after TOLAC in Chinese multiparas based on a strictly uniform TOLAC indication, management and epidural protocol.

methodsA total of 423 multiparas undergoing TOLAC were enrolled in this study from January 2017 to February 2018. Multiparas were divided into two groups according to whether they received epidural analgesia (study group, N = 263) or not (control group, N = 160) during labor. Maternal delivery outcomes and neonatal characteristics were recorded and evaluated using univariate analysis, multivariable logistic regression and propensity score matching (PSM).

resultsThe success rate of VBAC was remarkably higher (85.55% vs. 69.38%, p < 0.01) in study group. Epidural analgesia significantly shortened initiating lactation period and declined Visual Analogue Score (VAS). It also showed more superiority in neonatal umbilical arterial blood pH value. After matching by PSM, multivariable logistic regression revealed that the correction of confounding factors including epidural analgesia, cervical Bishop score at admission and spontaneous onset of labor were still shown as promotion probability in study group (OR = 4.480, 1.360, and 10.188, respectively; 95%CI = 2.025-10.660, 1.113-1.673, and 2.875-48.418, respectively; p < 0.001, p = 0.003, and p < 0.001, respectively).

conclusionsEpidural analgesia could reduce labor pain, and no increased risk of postpartum bleeding or uterine rupture, as well as adverse effects in newborns were observed. The labor duration of multiparas was increased, but within acceptable range. In summary, epidural analgesia may be safe for both mother and neonate in the three studied hospitals.

trial registrationChineses Clinical Trial Register, ChiCTR-ONC-17010654. Registered February 16th, 2017.

Indexed as

Trial of LaborAdultAnalgesia, EpiduralAnalgesia, ObstetricalChinaFemaleHumansInfant, NewbornLabor PainLogistic ModelsObstetric Labor ComplicationsPostpartum HemorrhagePregnancyPregnancy OutcomeProspective StudiesRisk FactorsEpidural analgesiaMaternal and neonatal outcomesPropensity score matchingTrial of labor after cesareanVaginal birth after cesarean

Identifiers

PMID31842795
PMCPMC6916071
OpenAlexW2994901280

What OpenQuestion holds

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LicenceCC BY
Read underepoch 390

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.