Skip to main content

Lund University Publications

LUND UNIVERSITY LIBRARIES

Bilirubin Levels in Neonates ≥ 35 Weeks of Gestation Receiving Delayed Cord Clamping for an Extended Time - an Observational Study

Wilander, Maria LU ; Sandblom, Johan LU ; Thies-Lagergren, Li LU orcid ; Andersson, Ola LU orcid and Svedenkrans, Jenny LU (2023) In Journal of Pediatrics 257.
Abstract

OBJECTIVE: To describe bilirubin levels in neonates ≥ 35+0 gestational weeks, receiving delayed cord clamping (CC), in relation to the updated Bhutani nomogram.

STUDY DESIGN: This was a retrospective, observational study based on data from medical records and local data sheets. Singleton neonates, born vaginally at a gestational age (GA) ≥ 35+0, and with a registered time to CC and at least one registered bilirubin, were included. We excluded neonates with positive direct antiglobulin test (DAT) or hemolytic disorders. Adjusted analyses were performed using analysis of variance, and linear or logistic regression.

RESULTS: We analyzed 558 neonates, mean GA (SD) 39.9 (1.3) weeks. CC was performed at a median (interquartile... (More)

OBJECTIVE: To describe bilirubin levels in neonates ≥ 35+0 gestational weeks, receiving delayed cord clamping (CC), in relation to the updated Bhutani nomogram.

STUDY DESIGN: This was a retrospective, observational study based on data from medical records and local data sheets. Singleton neonates, born vaginally at a gestational age (GA) ≥ 35+0, and with a registered time to CC and at least one registered bilirubin, were included. We excluded neonates with positive direct antiglobulin test (DAT) or hemolytic disorders. Adjusted analyses were performed using analysis of variance, and linear or logistic regression.

RESULTS: We analyzed 558 neonates, mean GA (SD) 39.9 (1.3) weeks. CC was performed at a median (interquartile range (IQR)) time of 6 (5-8) minutes. The dataset contained 1330 bilirubin measurements. Median (IQR) age at bilirubin measurement was 37 (22-54) hours. Bilirubin percentiles in neonates with CC time ≥ 2 min were similar, or lower, compared with the Bhutani nomogram between 12 and 72 hours, but with higher 95
th percentile at later hours of age. Phototherapy was initiated in 13 (2.3 %) of the neonates. We found no association between time to CC and hyperbilirubinemia (β = -0.05, p=0.07). Need for phototherapy was marginally higher in neonates with shorter time to CC.

CONCLUSION: Bilirubin levels were not correlated to time to CC. Our findings indicate that CC beyond 2 minutes can be performed without additional monitoring for jaundice.

(Less)
Please use this url to cite or link to this publication:
author
; ; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Journal of Pediatrics
volume
257
article number
113326
publisher
Academic Press
external identifiers
  • scopus:85150832413
  • pmid:36646247
ISSN
1097-6833
DOI
10.1016/j.jpeds.2023.01.005
project
Sustained cord circulation Awaiting VEntilation
language
English
LU publication?
yes
additional info
Copyright © 2023 The Author(s). Published by Elsevier Inc. All rights reserved.
id
2ea8bc18-ddb5-450c-a1e0-d5cc2518eab7
date added to LUP
2023-01-24 10:25:23
date last changed
2024-06-15 01:20:14
@article{2ea8bc18-ddb5-450c-a1e0-d5cc2518eab7,
  abstract     = {{<p>OBJECTIVE: To describe bilirubin levels in neonates ≥ 35+0 gestational weeks, receiving delayed cord clamping (CC), in relation to the updated Bhutani nomogram.</p><p>STUDY DESIGN: This was a retrospective, observational study based on data from medical records and local data sheets. Singleton neonates, born vaginally at a gestational age (GA) ≥ 35+0, and with a registered time to CC and at least one registered bilirubin, were included. We excluded neonates with positive direct antiglobulin test (DAT) or hemolytic disorders. Adjusted analyses were performed using analysis of variance, and linear or logistic regression.</p><p>RESULTS: We analyzed 558 neonates, mean GA (SD) 39.9 (1.3) weeks. CC was performed at a median (interquartile range (IQR)) time of 6 (5-8) minutes. The dataset contained 1330 bilirubin measurements. Median (IQR) age at bilirubin measurement was 37 (22-54) hours. Bilirubin percentiles in neonates with CC time ≥ 2 min were similar, or lower, compared with the Bhutani nomogram between 12 and 72 hours, but with higher 95 <br>
 th percentile at later hours of age. Phototherapy was initiated in 13 (2.3 %) of the neonates. We found no association between time to CC and hyperbilirubinemia (β = -0.05, p=0.07). Need for phototherapy was marginally higher in neonates with shorter time to CC.<br>
 </p><p>CONCLUSION: Bilirubin levels were not correlated to time to CC. Our findings indicate that CC beyond 2 minutes can be performed without additional monitoring for jaundice.</p>}},
  author       = {{Wilander, Maria and Sandblom, Johan and Thies-Lagergren, Li and Andersson, Ola and Svedenkrans, Jenny}},
  issn         = {{1097-6833}},
  language     = {{eng}},
  month        = {{01}},
  publisher    = {{Academic Press}},
  series       = {{Journal of Pediatrics}},
  title        = {{Bilirubin Levels in Neonates ≥ 35 Weeks of Gestation Receiving Delayed Cord Clamping for an Extended Time - an Observational Study}},
  url          = {{http://dx.doi.org/10.1016/j.jpeds.2023.01.005}},
  doi          = {{10.1016/j.jpeds.2023.01.005}},
  volume       = {{257}},
  year         = {{2023}},
}