The time of clamping the umbilical cord. (A controversial aspect of stem cell research)

Norman Ende, Nuris Portuondo, Leslie Iffy

Research output: Contribution to journalArticle

1 Scopus citations

Abstract

Progress in the field of stem cell research has generated a variety of new ethical and legal problems in the United States. Some hotly debated issues relate to the opportunity of harvesting stem cells from the placental blood immediately after delivery. The optimum time for cutting the umbilical cord is widely assumed to be different from the point of view of the child and from that of the cord bank seeking the maximum obtainable blood volume. The article draws attention to the fact that relatively little is known about the circumstances where the neonate benefits from increased or reduced blood volume. Besides, the direction of the feto-placental blood transfer is subject to the forces of gravity. The effect of the latter is generally different in vaginal and abdominal deliveries. Consequently, the often emotionally charged dispute with regard to the optimum time of cord clamping for the purpose of fetal blood banking rests upon relatively limited scientific basis. The appropriate timing of omphalotomy requires, therefore, further investigation.

Original languageEnglish (US)
Pages (from-to)5-8
Number of pages4
JournalMagyar Noorvosok Lapja
Volume69
Issue number1
StatePublished - Mar 7 2006

All Science Journal Classification (ASJC) codes

  • Reproductive Medicine
  • Obstetrics and Gynecology

Keywords

  • Blood banks
  • Cord clamping
  • Stem cells
  • Umbilical cord blood

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