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Transfusions and Nitric Oxide Level in Preterm Infants

NCT00787124 · Status: COMPLETED · Type: OBSERVATIONAL · Enrollment: 8

Last updated 2018-09-28

Study results available
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Summary

The purpose of this study is to better understand S-nitrosohemeglobin (SNO-Hb) in transfused blood of extremely preterm infants. The long term goal of the project is to identify variation in the SNO-Hb between packed red blood cell units, and between and among individual preterm infants pre and post-transfusion. Duke investigators are developing methods to replenish SNO-Hb, which, if successful, would improve RBC deformation in addition to providing a vasodilatory stimulation to hypoxic tissue, and lead to a randomized clinical trial testing treated vs. untreated RBC transfusions in extremely premature infants.

AIM 1. Measure the Total Hemoglobin (Hb)-bound nitric oxide (NO), Hb \[Fe\] NO, SNO-Hb (a calculated value = (total Hb-NO - Hb \[Fe\] NO) in blood to be transfused in extremely preterm babies, and in samples pre and post- transfusion from the babies.

Hypothesis 1: Measures of NO and SNO-Hb will be low in blood used for transfusion in preterm infants and will be decreased in the post-transfusion samples from the infants compared with the pre-transfusion samples.

AIM 2. Collect clinical data about study participants, including oxygen saturation and measures of perfusion pre and post-transfusion.

Hypothesis 2: Measures of perfusion will be reduced by 20% post-transfusion in extremely preterm infants.

Conditions

  • Prematurity
  • Anemia
  • Necrotizing Enterocolitis

Sponsors & Collaborators

Principal Investigators

  • P Brian Smith, MD MHS · Duke University

Eligibility

Max Age
365 Days
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2008-09-30
Primary Completion
2009-09-30
Completion
2009-09-30

Countries

  • United States

Study Locations

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Diseases
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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT00787124 on ClinicalTrials.gov