Umbilical cord milking in term infants delivered by cesarean section: a randomized controlled trial

J Perinatol. 2012 Aug;32(8):580-4. doi: 10.1038/jp.2011.159. Epub 2011 Nov 17.


Objective: The study's objective was to compare hematocrit (Hct) levels at 36 to 48 h of age in term infants delivered by cesarean section exposed to immediate cord clamping or umbilical cord milking (UCM).

Study design: In this randomized controlled trial, 24 women scheduled for elective cesarean section were randomized to either immediate clamping (<10 s) or UCM (milked × 5 by the obstetrical provider) at birth.

Result: All subjects received their allocated intervention. The milking group had a smaller placental residual blood volume (13.2±5.6 vs 19.2±5.4 ml kg(-1), P=0.01) and higher Hct levels at 36 to 48 h (57.5±6.6 vs 50.0±6.4 %, P=0.01). Five infants (42%) in the immediate group had a Hct of ≤47%, indicative of anemia.

Conclusion: UCM results in placental transfusion in term infants at the time of elective cesarean section with higher Hct levels at 36 to 48 h of age.

Publication types

  • Randomized Controlled Trial
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Cesarean Section / methods*
  • Constriction
  • Female
  • Fetal Blood
  • Hematocrit
  • Humans
  • Hyperbilirubinemia / blood
  • Hyperbilirubinemia / prevention & control
  • Infant, Newborn
  • Jaundice / blood
  • Jaundice / prevention & control
  • Placenta / blood supply
  • Pregnancy
  • Umbilical Arteries
  • Umbilical Cord*