An anticoagulation protocol for use after congenital cardiac surgery

Area of Science:

• Cardiology
• Pediatric Surgery
• Pharmacology

Background:

• Patients undergoing congenital heart surgery face high risks of postoperative bleeding and thrombosis.
• Standardized anticoagulation protocols are crucial for managing these risks.

Purpose of the Study:

• To describe the design and evaluate the effects of a standardized unfractionated heparin anticoagulation protocol for pediatric patients post-congenital heart surgery.
• To assess the protocol's impact on bleeding and thrombosis events.

Main Methods:

• A tiered guideline was developed for postoperative management of bleeding and thrombosis.
• Unfractionated heparin dose titration utilized anti-factor Xa activity and activated partial thromboplastin time.
• Clinical outcomes, including bleeding and thrombosis, were prospectively collected and adjudicated before and after protocol implementation.

Main Results:

• Clinically relevant bleeding events decreased significantly after protocol implementation (1.62 vs 4.14 events per 100 patient-days).
• The reduction in bleeding was observed particularly in lower RACHS score categories and noninfant patients.
• No significant differences were found in major bleeding or overall thrombosis rates.

Conclusions:

• A standardized anticoagulation protocol using unfractionated heparin is feasible for pediatric postcardiotomy patients.
• The protocol may effectively reduce the incidence of clinically relevant bleeding events.