Evidence map›Paper›PMID 29234147›Full record

ArticleJournal of perinatology : official journal of the California Perinatal Association2018

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

Ryan M McAdams, Emily Fay, Shani Delaney

Abstract read
PubMed Publisher
In one paragraph

Article in Journal of perinatology : official journal of the California Perinatal Association, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed, 2 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

21 citing papers in PubMed, 2 syntheses or guidelines pooled it.

  1. Singapore Neonatal Resuscitation Guidelines 2026.Singapore medical journal · 2026
    Guideline
  2. Umbilical cord milking versus delayed cord clamping in term infants: a systematic review and meta-analysis.Journal of perinatology : official journal of the California Perinatal Association · 2021
    Pooled it
  3. Trial
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  8. Care of the Newborn and Cord During the Third Stage of Labour (Scientific Impact Paper No. 78).BJOG : an international journal of obstetrics and gynaecology · 2026
    Review
  9. Article
  10. How Delayed Cord Clamping Saves Newborn Lives.Children (Basel, Switzerland) · 2025
    Review
  11. Review
  12. Cord management in non-vigorous newborns.Seminars in perinatology · 2023
    Article
  13. Article
  14. Umbilical cord milking-benefits and risks.Frontiers in pediatrics · 2023
    Review
  15. Review
  16. Article
  17. Review
  18. Article
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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

3 authors.

Ryan M McAdamsDepartment of Pediatrics, University of Washington, Seattle, WA, USA. mcadams@pediatrics.wisc.edu.
Emily FayDepartment of Obstetrics and Gynecology, University of Washington, Seattle, WA, USA.
Shani DelaneyDepartment of Obstetrics and Gynecology, University of Washington, Seattle, WA, USA.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveThe objective of this study is to determine placental transfusion blood volumes with intact and cut umbilical cord milking in term newborns. STUDY

designSixty 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.

resultsMean 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.

conclusionI-UCM provides a greater blood volume than C-UCM. With C-UCM, milking the cord more than twice offers no additional advantage.

Indexed as

Term BirthAdultBlood VolumeConstrictionFemaleGestational AgeHumansInfant, NewbornMalePlacental CirculationPregnancyUmbilical CordYoung Adult

Identifiers

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

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.