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Crit Care Med. 2010 Feb;38(2):649-56. doi: 10.1097/CCM.0b013e3181bc816c.

Comparison of two red-cell transfusion strategies after pediatric cardiac surgery: a subgroup analysis.

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  • 1Pediatric Intensive Care Unit, Department of Pediatrics, Université de Montréal, Montréal, QC, Canada.

Abstract

OBJECTIVE:

To determine the impact of a restrictive vs. a liberal transfusion strategy on new or progressive multiple organ dysfunction syndrome in children post cardiac surgery. The optimal transfusion threshold after cardiac surgery in children is unknown.

DESIGN:

Randomized, controlled trial.

SETTING:

Tertiary pediatric intensive care units.

PATIENTS:

Participants are a subgroup of pediatric patients post cardiac surgery from the TRIPICU (Transfusion Requirements in Pediatric Intensive Care Units) study. Exclusion criteria specific to the cardiac surgery subgroup included: age <28 days and patients remaining cyanotic.

INTERVENTION:

Critically ill children with a hemoglobin < or = 95 g/L within 7 days of pediatric intensive care unit admission were randomized to receive prestorage leukocyte-reduced red-cell transfusion if their hemoglobin dropped either <70 g/L (restrictive) or 95 g/L (liberal).

MEASUREMENTS AND MAIN RESULTS:

Postoperative cardiac patients (n = 125) from seven centers were enrolled. The restrictive (n = 63) and liberal (n = 62) groups were similar at baseline in age (mean +/- standard deviation = 31.4 +/- 38.1 mos vs. 26.4 +/- 39.1 mos), surgical procedure, severity of illness (Pediatric Risk of Mortality score = 3.4 +/- 3.2 vs. 3.2 +/- 3.2), multiple organ dysfunction syndrome (46% vs. 44%), mechanical ventilation (62% vs. 60%), and hemoglobin (83 vs. 80 g/L). Mean hemoglobin remained 21 g/L lower in the restrictive group after randomization. No significant difference was found in new or progressive multiple organ dysfunction syndrome (primary outcome) in the restrictive group vs. liberal group (12.7% vs. 6.5%; p = .36), pediatric intensive care unit length of stay (7.0 +/- 5.0 days vs. 7.4 +/- 6.4 days) or 28-day mortality (3.2% vs. 3.2%).

CONCLUSION:

In this subgroup analysis of cardiac surgery patients, a restrictive red-cell transfusion strategy, as compared with a liberal one, was not associated with any significant difference in new or progressive multiple organ dysfunction syndrome, but this evidence is not definitive.

PMID:
19789443
[PubMed - indexed for MEDLINE]
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