Platelet Transfusion for PDA Closure in Preterm Infants: A Randomized Controlled Trial

Area of Science:

• Neonatal Medicine
• Pediatric Cardiology
• Hematology

Background:

• Thrombocytopenia, a common complication in preterm infants, is linked to delayed closure of patent ductus arteriosus (PDA).
• Limited research exists on the efficacy of platelet transfusions for treating PDA in this vulnerable population.

Purpose of the Study:

• To compare the effectiveness of liberal versus standard platelet transfusion criteria in achieving earlier closure of hemodynamically significant PDA (hs-PDA).
• To evaluate the impact of liberal platelet transfusion on time to PDA closure in thrombocytopenic preterm neonates.

Main Methods:

• A randomized controlled trial involving thrombocytopenic preterm neonates (<35 weeks' gestation) with hs-PDA.
• Patients were assigned to either liberal (platelet count >100,000/µL) or standard transfusion groups.
• Echocardiography monitored PDA closure, with survival analysis used for primary outcome comparison.

Main Results:

• Median time to PDA closure was similar between liberal (72 hours) and standard (72 hours) transfusion groups (P=.697).
• Liberal platelet transfusion did not significantly hasten PDA closure.
• A higher incidence of intraventricular hemorrhage was observed in the liberal transfusion group (41%) compared to the standard group (4.5%, P=.009).

Conclusions:

• Liberal platelet transfusion strategies do not accelerate PDA closure in thrombocytopenic preterm neonates.
• The findings suggest that liberal platelet transfusions may increase the risk of adverse events like intraventricular hemorrhage without providing clinical benefit for PDA closure.