EP17.04: True knot of umbilical cord: the benefit of active management

To compare perinatal outcomes between active and routine management in true knot of umbilical cord (TKUC). A retrospective study of all singletons born beyond 226/7 weeks with TKUC. Perinatal outcomes were compared between two groups- 1) prenatally detected TKUC receiving active management and 2) postnatally detected TKUC receiving routine management. Active management included weekly fetal heart rate monitoring (FHRM) from 30 weeks, growth scan at 32 weeks and labour induction at 36-37 weeks. The rates of the following adverse perinatal outcome were compared: fetal death, Caesarean section (CS) or Instrumental delivery due to non-reassuring fetal heart rate (NRFHR), low Apgar score, cord Ph <7, neonatal asphyxia, neonatal intensive care unit (NICU) admission, etc. A composite asphyxia-related outcome composed of selected individual outcomes, was compared. The Active Management (n = 59) and Routine Management (n = 1091) groups demonstrated comparable rates of composite asphyxia-related outcome (16.9% vs 16.8%, p = 0.97). The Active Management group had higher rates of prematurity (27.1% vs 5.3%, p < 0.001), labour induction (53.5% vs 13.2%, p < 0.001), induced prematurity (22% vs 1.7%, p < 0.001), CS (37.3% vs 19.2%, p = 0.003) and NICU admissions (13.6% vs 3%, p < 0.001). Fetal death occurred exclusively under routine management (1.8% vs 0%, p = 0.6). Weekly FHRM and labour induction between 36-37 weeks in TKUC does not appear to confer a proven benefit over routine management. In its current form, active management is associated with higher rates of CS, prematurity, induced prematurity and NICU admissions. Labour induction before 37 weeks should be avoided. Please note: The publisher is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article.

Authors

Institutions

Publication Details

Journal
Ultrasound in Obstetrics and Gynecology
Published
2024-09-01
DOI
https://doi.org/10.1002/uog.28662
Primary Topic
Reconstructive Surgery and Microvascular Techniques
Type
article
Field-Weighted Citation Impact
0.00
Controls
|||
ALL TIME
JAN
FEB
MAR
APR
MAY
JUN
JUL
AUG
SEP
OCT
article

EP17.04: True knot of umbilical cord: the benefit of active management

Alina Weissmann‐Brenner, Raanan Meyer, Boaz Weisz, Tal Weissbach et al.
Ultrasound in Obstetrics and Gynecology
Reconstructive Surgery and Microvascular Techniques
article

EP17.04: True knot of umbilical cord: the benefit of active management

Alina Weissmann‐Brenner, Raanan Meyer, Boaz Weisz, Tal Weissbach, Shir Lev, Abeer Massarwa, T. Elkan Miller, Eran Kassif, Yonatan Back, Shali Mazaki‐Tovi
article en

Abstract

To compare perinatal outcomes between active and routine management in true knot of umbilical cord (TKUC). A retrospective study of all singletons born beyond 226/7 weeks with TKUC. Perinatal outcomes were compared between two groups- 1) prenatally detected TKUC receiving active management and 2) postnatally detected TKUC receiving routine management. Active management included weekly fetal heart rate monitoring (FHRM) from 30 weeks, growth scan at 32 weeks and labour induction at 36-37 weeks. The rates of the following adverse perinatal outcome were compared: fetal death, Caesarean section (CS) or Instrumental delivery due to non-reassuring fetal heart rate (NRFHR), low Apgar score, cord Ph <7, neonatal asphyxia, neonatal intensive care unit (NICU) admission, etc. A composite asphyxia-related outcome composed of selected individual outcomes, was compared. The Active Management (n = 59) and Routine Management (n = 1091) groups demonstrated comparable rates of composite asphyxia-related outcome (16.9% vs 16.8%, p = 0.97). The Active Management group had higher rates of prematurity (27.1% vs 5.3%, p < 0.001), labour induction (53.5% vs 13.2%, p < 0.001), induced prematurity (22% vs 1.7%, p < 0.001), CS (37.3% vs 19.2%, p = 0.003) and NICU admissions (13.6% vs 3%, p < 0.001). Fetal death occurred exclusively under routine management (1.8% vs 0%, p = 0.6). Weekly FHRM and labour induction between 36-37 weeks in TKUC does not appear to confer a proven benefit over routine management. In its current form, active management is associated with higher rates of CS, prematurity, induced prematurity and NICU admissions. Labour induction before 37 weeks should be avoided. Please note: The publisher is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article.

Ultrasound in Obstetrics and GynecologyVol. 64(S1)
Cedars-Sinai Medical Center (US), Tel Aviv University (IL), Sheba Medical Center (IL), Wolfson Medical Center (IL)
Zero hunger
Openalex Percentile: Top 72%
Reconstructive Surgery and Microvascular Techniques
AI Navigator

Ask Laika to Summarize, Analyze, and Connect papers live on the map.

Summarize Papers & Methodologies

Extract key findings, datasets, and comparative methods across publications.

Benchmark Rankings & Visual Analytics

Rank top research institutions, authors, funders, topics, and journals by Field-Weighted Citation Impact (FWCI) and paper volume with instant charts.

Connect Distant Disciplines

Bridge topological clusters on the map to find hidden collaborative intersections.