Evidence map›Paper›PMID 41610023›Full record

ArticleActa obstetricia et gynecologica Scandinavica2026

Nine years' experience of trial of labor after two previous cesarean sections at a tertiary hospital - A retrospective cohort study.

Kelvin Z X Lee, Binny Priya Sesurajan, Harshaana Ramlal, Tak Yein Lim, Mahesh Choolani, Vanaja Kalaichelvan, Lin Lin Su, Ida Ismail-Pratt, Citra N Z Mattar, Sarah W L Li

Abstract read
In one paragraph

Article in Acta obstetricia et gynecologica Scandinavica, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
–field-weighted citation impact
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

1 citing paper in PubMed.

  1. Article
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.

Kelvin Z X LeeDepartment of Obstetrics and Gynaecology, National University Health System, Singapore, Singapore.ORCID https://orcid.org/0000-0003-2368-8330
Binny Priya SesurajanDepartment of Obstetrics and Gynaecology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore.
Harshaana RamlalDepartment of Obstetrics and Gynaecology, National University Health System, Singapore, Singapore.
Tak Yein LimDepartment of Obstetrics and Gynaecology, National University Health System, Singapore, Singapore.
Mahesh ChoolaniDepartment of Obstetrics and Gynaecology, National University Health System, Singapore, Singapore.
Vanaja KalaichelvanDepartment of Obstetrics and Gynaecology, National University Health System, Singapore, Singapore.
Lin Lin SuDepartment of Obstetrics and Gynaecology, National University Health System, Singapore, Singapore.
Ida Ismail-PrattDepartment of Obstetrics and Gynaecology, Mount Elizabeth Novena, Singapore, Singapore.
Citra N Z MattarDepartment of Obstetrics and Gynaecology, National University Health System, Singapore, Singapore.ORCID https://orcid.org/0000-0003-0068-6957
Sarah W L LiDepartment of Obstetrics and Gynaecology, National University Health System, Singapore, Singapore.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionThe global cesarean section (CS) rate has increased to 21.1% between 1990 and 2018. In Singapore, the annual CS rate has increased by ~ 0.6%, reaching an overall rate of 37.4%. Almost one-third of all cesarean deliveries are performed for at least one previous CS. Women with two CSs are often denied a "trial of vaginal delivery" due to the increased risk of uterine scar rupture. This study aims to examine maternal and neonatal outcomes of women undergoing trials of labor following two CSs (TOLAC-2). MATERIAL AND

methodsWe conducted a retrospective observational study of women with singleton, term pregnancies in cephalic presentation who underwent TOLAC-2 at the National University Hospital, Singapore, between September 2013 and June 2022. Data were obtained through a detailed review of electronic medical records.

resultsAmong 898 women with two previous CSs, 7.0% (63/898) attempted TOLAC-2, of whom 55.6% (35/63) achieved a successful vaginal birth (VBAC-2). Successful TOLAC-2 was associated with a significantly shorter duration of active labor (5.0 vs. 7.7 h, p = 0.013) and lower estimated blood loss (242mLs vs. 423mLs, p ≤ 0.001) compared with failed TOLAC-2. There were no perinatal complications of uterine rupture, APGAR <7 at 5 minutes, meconium aspiration syndrome or hypoxic-ischemic encephalopathy. We observed a trend toward successful VBAC-2 in women with a history of prior vaginal birth (74.6% vs. 48.9% p = 0.07).

conclusionsIn our cohort, more than half of the women attempting TOLAC-2 at term achieved a successful vaginal birth without serious perinatal or maternal complications. TOLAC-2 is a safe and reasonable option for appropriately selected women following adequate counseling, even in the absence of a prior vaginal delivery.

Indexed as

perinatal morbidityTOLAC‐2trial of labor after two cesarean sectionsuterine scar rupturevaginal birth after two cesarean sectionsVBAC‐2

Identifiers

PMID41610023
PMCPMC12942056

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