Whole blood volumes associated with milking intact and cut umbilical cords in term newborns

ABSTRACT OBJECTIVE The objective of this study is to determine placental transfusion blood volumes with intact and cut umbilical cord milking in term newborns. STUDY DESIGN Sixty women at

≥37 weeks’ gestation were enrolled. Following delivery, the umbilical cord was immediately clamped and cut to separate the newborn. Either intact umbilical cord milking (I-UCM) of the

placental–umbilical cord unit or cut umbilical cord milking (C-UCM) of the cut umbilical cord segment was performed. For I-UCM, the cord underwent milking three or four times while being

attached to placental circulation. For C-UCM, a 10, 20, or 30 cm cord segment was cut separately and milked four times. Blood volumes were compared between I-UCM and C-UCM methods. RESULTS

Mean blood volume with I-UCM (×4) was increased compared to the 30 cm C-UCM technique (48.5 ± 19.0 vs. 24.8 ± 4.0 mL, _P_ < 0.001). For C-UCM, blood volume increased proportionally to

cord length and, by the second milking, 98.1 ± 4.5% of blood volume was delivered. CONCLUSION I-UCM provides a greater blood volume than C-UCM. With C-UCM, milking the cord more than twice

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our FAQs * Contact customer support SIMILAR CONTENT BEING VIEWED BY OTHERS UMBILICAL CORD MILKING VERSUS DELAYED CORD CLAMPING IN TERM INFANTS: A SYSTEMATIC REVIEW AND META-ANALYSIS Article

24 September 2020 PLACENTAL TRANSFUSION DURING NEONATAL RESUSCITATION IN AN ASPHYXIATED PRETERM MODEL Article 30 April 2022 NEONATAL FACTORS IMPACTING UMBILICAL CORD BLOOD UNIT

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at birth: physiological considerations. Matern Health Neonatol Perinatol. 2016;2:4. Article  PubMed  PubMed Central  Google Scholar  Download references ACKNOWLEDGEMENTS We gratefully

acknowledge the technical assistance of Jan Hamanishi in preparing the figures and the statistical advice provided by Jens Eickhoff. There were no sources of funding for this project. Data

from this study were presented as a poster at the ACOG Annual Clinical and Scientific Meeting in San Diego, CA, in May 2017 and the Pediatric Academic Society Meeting in San Francisco, CA,

in May 2017. AUTHOR INFORMATION AUTHORS AND AFFILIATIONS * Department of Pediatrics, University of Washington, Seattle, WA, USA Ryan M. McAdams * Department of Obstetrics and Gynecology,

University of Washington, Seattle, WA, USA Emily Fay & Shani Delaney * Department of Pediatrics, University of Wisconsin School of Medicine and Public Health, Madison, WI, USA Ryan M.

McAdams Authors * Ryan M. McAdams View author publications You can also search for this author inPubMed Google Scholar * Emily Fay View author publications You can also search for this

author inPubMed Google Scholar * Shani Delaney View author publications You can also search for this author inPubMed Google Scholar CORRESPONDING AUTHOR Correspondence to Ryan M. McAdams.

ETHICS DECLARATIONS COMPETING INTEREST The authors declare that they have no competing financial interest. RIGHTS AND PERMISSIONS Reprints and permissions ABOUT THIS ARTICLE CITE THIS

ARTICLE McAdams, R.M., Fay, E. & Delaney, S. Whole blood volumes associated with milking intact and cut umbilical cords in term newborns. _J Perinatol_ 38, 245–250 (2018).

https://doi.org/10.1038/s41372-017-0002-x Download citation * Received: 14 June 2017 * Revised: 08 September 2017 * Accepted: 04 October 2017 * Published: 12 December 2017 * Issue Date:

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