Evidence map›Paper›PMID 40093988›Full record

ArticleEClinicalMedicine2025

Impact of delayed cord clamping on respiratory distress in late preterm and early term infants in elective cesarean section: a single centre, phase Ⅲ, randomised controlled trial.

Tingting Wang, Silu Wang, Ming Zhou, Yi Duan, Wei Chen, Liping Pan, Zhen Li, Jianguo Zhou, Jiang-Qin Liu

Abstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in EClinicalMedicine, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed, 1 pooled it
–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 synthesis or guideline pooled it.

  1. Guideline
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

9 authors.

Tingting WangDepartment of Neonatology, Shanghai Key Laboratory of Maternal Fetal Medicine, Shanghai Institute of Maternal-Fetal Medicine and Gynecologic Oncology, Shanghai First Maternity and Infant Hospital, School of Medicine, Tongji University, Shanghai 200092, China.
Silu WangDepartment of Neonatology, Shanghai Key Laboratory of Maternal Fetal Medicine, Shanghai Institute of Maternal-Fetal Medicine and Gynecologic Oncology, Shanghai First Maternity and Infant Hospital, School of Medicine, Tongji University, Shanghai 200092, China.
Ming ZhouDepartment of Neonatology, Shanghai Key Laboratory of Maternal Fetal Medicine, Shanghai Institute of Maternal-Fetal Medicine and Gynecologic Oncology, Shanghai First Maternity and Infant Hospital, School of Medicine, Tongji University, Shanghai 200092, China.
Yi DuanDepartment of Neonatology, Shanghai Key Laboratory of Maternal Fetal Medicine, Shanghai Institute of Maternal-Fetal Medicine and Gynecologic Oncology, Shanghai First Maternity and Infant Hospital, School of Medicine, Tongji University, Shanghai 200092, China.
Wei ChenDepartment of Anesthesiology, Shanghai First Maternity and Infant Hospital, School of Medicine, Tongji University, Shanghai 200092, China.
Liping PanDepartment of Neonatology, Shanghai Key Laboratory of Maternal Fetal Medicine, Shanghai Institute of Maternal-Fetal Medicine and Gynecologic Oncology, Shanghai First Maternity and Infant Hospital, School of Medicine, Tongji University, Shanghai 200092, China.
Zhen LiClinical Research Unit, Shanghai First Maternity and Infant Hospital, School of Medicine, Tongji University, Shanghai 200092, China.
Jianguo ZhouDepartment of Neonatology, Children's Hospital of Fudan University, National Children's Medical Centre, Shanghai, China.
Jiang-Qin LiuDepartment of Neonatology, Shanghai Key Laboratory of Maternal Fetal Medicine, Shanghai Institute of Maternal-Fetal Medicine and Gynecologic Oncology, Shanghai First Maternity and Infant Hospital, School of Medicine, Tongji University, Shanghai 200092, China.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Background: Delayed cord clamping (DCC) has the potential to alleviate respiratory distress by augmenting blood volume and oxygenation, although there is currently a lack of direct evidence to support this. Late preterm and early term infants born via elective cesarean section (CS) are known to be more vulnerable to the neonatal respiratory distress (NRD). This study was designed to examine the effect of DCC on NRD of these infants. Methods: Conducted from January 1, 2019 to January 31, 2024 at Shanghai First Maternity and Infant Hospital, this single-centre, phase Ⅲ, open-label randomised controlled trial included newborns delivered via elective CS between 34 Findings: Of 2610 randomised women, 1418 neonates were included in the DCC group and 1419 in the ICC group. The mean maternal age for both groups was 33 (4) years, and all mothers were of Han ethnicity. The mean gestational age of the neonates was 37.9 (0.9) weeks in both groups. NRD occurred in 119 (8.4%) in DCC versus 135 (9.5%) in ICC (Adjusted Relative Risk [aRR] 0.93, 95% CI 0.75-1.14). There were no significant differences in infant and maternal adverse events such as low Apgar score (aRR 0.74, 95% CI 0.25-2.19), hypothermia (aRR 1.00, 95% CI 0.89-1.12), hypoglycemia (aRR 1.04, 95% CI 0.77-1.38), maternal intrapartum massive bleeding (aRR 0.96, 95% CI 0.76-1.19), or the requirement for transfusion (aRR 0.34, 95% CI 0.10-1.15). Interpretation: Delayed cord clamping was safe for both mothers and infants in late preterm and early term delivered by elective cesarean section, while it did not reduce the risk of early respiratory diseases. Funding: This trial was funded by Shanghai Municipal Health Commission, China in 2019 (201940140) and National Natural Science Foundation of China in 2022 (82204047).

Indexed as

Delayed cord clampingEarly termElective cesarean sectionLate pretermNeonatal respiratory distress

Identifiers

PMID40093988
PMCPMC11909439

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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.