Routine external aortic compression versus no aortic compression in elective caesarean delivery to reduce blood loss:...

Area of Science:

• Obstetrics and Gynecology
• Surgical Innovation
• Maternal Health

Background:

• External aortic compression is a known method to reduce blood loss during childbirth.
• Its efficacy in preventing postpartum hemorrhage (PPH) has not been previously evaluated.
• This study addresses the gap in knowledge regarding PPH prevention strategies.

Purpose of the Study:

• To investigate the effectiveness of routine external aortic compression in preventing severe postpartum hemorrhage during elective cesarean delivery.
• To assess the safety and acceptability of this intervention for patients.
• To explore secondary outcomes such as maternal morbidity and healthcare resource utilization.

Main Methods:

• A multicenter, randomized, controlled, open-label trial involving 2246 patients undergoing elective cesarean delivery.
• Participants are randomized to either external aortic compression or standard care (no compression).
• The primary outcome is severe PPH (blood loss >1000 mL or transfusion within 48 hours), analyzed using intention-to-treat principles.

Main Results:

• The study is currently enrolling patients and results are pending.
• Data analysis will employ generalized linear mixed-effects models, adjusting for study center.
• Confirmatory outcomes will be managed using a hierarchical testing procedure to control multiplicity.

Conclusions:

• The findings will provide crucial evidence on the utility of external aortic compression for PPH prevention.
• Results will inform clinical practice guidelines for cesarean delivery.
• The study contributes to enhancing maternal safety and reducing complications in childbirth.