The hematological impact of umbilical cord milking versus delayed cord clamping in premature neonates: a randomized controlled trial

Abstract Background The hematological impact of umbilical cord milking (UCM) was compared to that of delayed cord clamping (DCC) as a faster placental transfusion technique for preterm neonates (between 24 and 34 + 6 weeks gestation). A comparison of important neonatal morbidities was also made. Met...

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Main Authors: Hytham Atia, Ahmed Badawie, Osama Elsaid, Mahmoud Kashef, Nourhan Alhaddad, Mohamed Gomaa
Format: Article
Language:English
Published: BMC 2022-09-01
Series:BMC Pregnancy and Childbirth
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Online Access:https://doi.org/10.1186/s12884-022-05046-7
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author Hytham Atia
Ahmed Badawie
Osama Elsaid
Mahmoud Kashef
Nourhan Alhaddad
Mohamed Gomaa
author_facet Hytham Atia
Ahmed Badawie
Osama Elsaid
Mahmoud Kashef
Nourhan Alhaddad
Mohamed Gomaa
author_sort Hytham Atia
collection DOAJ
description Abstract Background The hematological impact of umbilical cord milking (UCM) was compared to that of delayed cord clamping (DCC) as a faster placental transfusion technique for preterm neonates (between 24 and 34 + 6 weeks gestation). A comparison of important neonatal morbidities was also made. Methods This was an open-label randomized trial conducted from June 8, 2017, to April 22, 2019. Two hundred patients with preterm deliveries (24 and 34 + 6 weeks gestation) were assigned to the DCC or UCM group at random at a ratio of 1:1. The study power was 80% for a difference in the hematocrit value of 3% and Hb value of one gram, and an alpha error of 0.05. Results The following variables were analyzed in the comparison of UCM vs. DCC: first draw hemoglobin: 17.0 ± 1.9 vs. 16.8 ± 1.8 gm/dl (95% CI -0.75–0.29, P 0.383); first draw hematocrit: 55.6 ± 6.4 vs. 55.2 ± 6.4% (95% CI -2.18–1.38, P 0.659); peak hematocrit: 56.9 ± 6.4 vs. 56.3 ± 6.7% (95% CI -2.41–1.26, P 0.537); the need for respiratory assistance (47% vs. 30%, P 0.020), inotropes (16% vs. 6%, P 0.040), and blood transfusion (26% vs. 12%, P 0.018); and the occurrence of intraventricular hemorrhage (9% vs. 5%, P 0.407), necrotizing enterocolitis (6% vs. 2%, P 0.279), sepsis (25% vs. 15%, P 0.111), and neonatal death (13% vs. 4%, P 0.40). Conclusion UCM facilitated a rapid transfer of placental blood equivalent to that of DCC for premature neonates. However, it resulted in increased rates of interventions and morbidities, especially in extremely preterm neonates. Trial registration The clinical trial was registered on May 10, 2017, with registration number (NCT03147846).
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spelling doaj-art-cb084c81059942e9bfd568cacf35df872025-08-20T02:37:36ZengBMCBMC Pregnancy and Childbirth1471-23932022-09-012211910.1186/s12884-022-05046-7The hematological impact of umbilical cord milking versus delayed cord clamping in premature neonates: a randomized controlled trialHytham Atia0Ahmed Badawie1Osama Elsaid2Mahmoud Kashef3Nourhan Alhaddad4Mohamed Gomaa5Faculty of Medicine, Zagazig UniversityArmed Forces Hospitals Southern Region, King Faisal Military City HospitalArmed Forces Hospitals Southern Region, King Faisal Military City HospitalArmed Forces Hospitals Southern Region, King Faisal Military City HospitalAl Ahmady HospitalArmed Forces Hospitals Southern Region, King Faisal Military City HospitalAbstract Background The hematological impact of umbilical cord milking (UCM) was compared to that of delayed cord clamping (DCC) as a faster placental transfusion technique for preterm neonates (between 24 and 34 + 6 weeks gestation). A comparison of important neonatal morbidities was also made. Methods This was an open-label randomized trial conducted from June 8, 2017, to April 22, 2019. Two hundred patients with preterm deliveries (24 and 34 + 6 weeks gestation) were assigned to the DCC or UCM group at random at a ratio of 1:1. The study power was 80% for a difference in the hematocrit value of 3% and Hb value of one gram, and an alpha error of 0.05. Results The following variables were analyzed in the comparison of UCM vs. DCC: first draw hemoglobin: 17.0 ± 1.9 vs. 16.8 ± 1.8 gm/dl (95% CI -0.75–0.29, P 0.383); first draw hematocrit: 55.6 ± 6.4 vs. 55.2 ± 6.4% (95% CI -2.18–1.38, P 0.659); peak hematocrit: 56.9 ± 6.4 vs. 56.3 ± 6.7% (95% CI -2.41–1.26, P 0.537); the need for respiratory assistance (47% vs. 30%, P 0.020), inotropes (16% vs. 6%, P 0.040), and blood transfusion (26% vs. 12%, P 0.018); and the occurrence of intraventricular hemorrhage (9% vs. 5%, P 0.407), necrotizing enterocolitis (6% vs. 2%, P 0.279), sepsis (25% vs. 15%, P 0.111), and neonatal death (13% vs. 4%, P 0.40). Conclusion UCM facilitated a rapid transfer of placental blood equivalent to that of DCC for premature neonates. However, it resulted in increased rates of interventions and morbidities, especially in extremely preterm neonates. Trial registration The clinical trial was registered on May 10, 2017, with registration number (NCT03147846).https://doi.org/10.1186/s12884-022-05046-7Cord milkingDeferred clampingHematocritPretermPlacental transfusion
spellingShingle Hytham Atia
Ahmed Badawie
Osama Elsaid
Mahmoud Kashef
Nourhan Alhaddad
Mohamed Gomaa
The hematological impact of umbilical cord milking versus delayed cord clamping in premature neonates: a randomized controlled trial
BMC Pregnancy and Childbirth
Cord milking
Deferred clamping
Hematocrit
Preterm
Placental transfusion
title The hematological impact of umbilical cord milking versus delayed cord clamping in premature neonates: a randomized controlled trial
title_full The hematological impact of umbilical cord milking versus delayed cord clamping in premature neonates: a randomized controlled trial
title_fullStr The hematological impact of umbilical cord milking versus delayed cord clamping in premature neonates: a randomized controlled trial
title_full_unstemmed The hematological impact of umbilical cord milking versus delayed cord clamping in premature neonates: a randomized controlled trial
title_short The hematological impact of umbilical cord milking versus delayed cord clamping in premature neonates: a randomized controlled trial
title_sort hematological impact of umbilical cord milking versus delayed cord clamping in premature neonates a randomized controlled trial
topic Cord milking
Deferred clamping
Hematocrit
Preterm
Placental transfusion
url https://doi.org/10.1186/s12884-022-05046-7
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