Decreasing transfusion exposure risk during extracorporeal membrane oxygenation (ECMO)

Area of Science:

• Neonatal Medicine
• Cardiovascular Surgery
• Hematology

Background:

• Extracorporeal membrane oxygenation (ECMO) is critical for neonatal pulmonary hypertension.
• ECMO therapy carries a substantial risk of transfusion-related complications.

Purpose of the Study:

• To evaluate the impact of revised transfusion protocols on blood product exposure in neonatal ECMO survivors.
• To quantify changes in packed red blood cell (PRBC) and platelet exposure before and after protocol changes.

Main Methods:

• Retrospective review of 17 neonatal ECMO survivors, divided into pre- (Group I) and post-protocol change (Group II) cohorts.
• Quantification of PRBC units and platelet volume transfused, along with blood withdrawal volumes and bypass duration.
• Analysis of transfusion requirements including ECMO circuit priming and maintenance of hematocrit/platelet levels.

Main Results:

• Revised protocols reduced PRBC exposure by 71% (3.9 +/- 0.7 units) through single-donor unit utilization (P < 0.05).
• Platelet volume transfusion decreased by 41% using volume-reduced platelet packs.
• Overall transfusion exposure reduced by 59% (20.8 +/- 17.8 to 8.6 +/- 2.4 donor units).
• No transfusion complications were observed during 1,926 hours on bypass.

Conclusions:

• Neonates on ECMO face significant transfusion exposure, escalating with longer therapy duration.
• Implementing concentrated platelet packs and single-donor PRBC transfusions effectively minimizes transfusion risks.
• Optimized transfusion strategies enhance safety for neonates undergoing ECMO.