Clamp late and maintain perfusion (CLAMP) policy: Delayed cord clamping in preterm infants

Angie C. Jelin, Marya G. Zlatnik, Miriam Kuppermann, Steven E. Gregorich, Sanae Nakagawa, Ronald Clyman

Research output: Contribution to journalArticlepeer-review

15 Scopus citations


Objective: Randomized controlled trials have demonstrated that delayed umbilical cord clamping (DCC) in preterm infants results in improved neonatal outcomes, including increased hematocrit, and decreased rates of intraventricular hemorrhage (IVH) and packed red blood cell transfusions. We hypothesized that implementation of a DCC policy in preterm infants would result in similarly improved outcomes, despite initial clinician resistance. Study design: A DCC policy (30-60 s) for singleton infants <35 weeks gestation was implemented in September 2011. We conducted a pre-test/post-test analysis of neonatal outcomes among singletons delivered between 24 0/7 weeks and 34 6/7 weeks gestation from 2009 to 2013 (2 years pre-implementation and 2 years post-implementation). The primary outcomes were rates of policy compliance and four neonatal outcomes. Results: Despite multiple routes of policy dissemination, DCC was attempted in only 49% of the deliveries. In spite of this, infants delivered post-policy implementation (n = 196) had a significant decrease in IVH, significant increase in initial hematocrits, and improved temperatures compared with infants delivered pre-implementation (n = 204). Conclusion: After implementation of a DCC policy, preterm singleton infants had improved temperatures, increased hematocrits and a decreased prevalence of IVH without significant differences in adverse outcomes, suggesting that the benefits of DCC outweighed the risks.

Original languageEnglish (US)
Pages (from-to)1705-1709
Number of pages5
JournalJournal of Maternal-Fetal and Neonatal Medicine
Issue number11
StatePublished - Jun 2 2016
Externally publishedYes


  • Compliance
  • delayed clamping
  • intraventricular hemorrhage
  • neonatal

ASJC Scopus subject areas

  • Pediatrics, Perinatology, and Child Health
  • Obstetrics and Gynecology


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