Haemostatic changes in the puerperium '6 weeks postpartum' (HIP Study) - implication for maternal thromboembolism

Area of Science:

• Obstetrics and Gynecology
• Hematology
• Thrombosis Research

Background:

• Postpartum women experience significant physiological changes.
• Understanding thrombotic risk in the postnatal period is crucial for maternal health.
• Existing literature lacks comprehensive data on coagulation dynamics up to six weeks postpartum.

Purpose of the Study:

• To quantify thrombotic changes during the first six weeks postpartum.
• To determine the duration and extent of the hypercoagulable state after delivery.
• To assess the clinical implications of these coagulation alterations.

Main Methods:

• Prospective observational study involving 50 women.
• Serial measurements of coagulation parameters including hemoglobin, platelets, fibrinogen, PT, APTT, Protein C, S, and antithrombin.
• Rotational thromboelastometry (ROTEM) analysis from predelivery to six weeks postpartum.

Main Results:

• Platelets and fibrinogen levels were significantly elevated in the early postpartum period.
• Prothrombin time (PT) and activated partial thromboplastin time (APTT) were reduced post-delivery.
• ROTEM analysis indicated a hypercoagulable state with reduced clotting time and increased clot firmness persisting for up to three weeks.

Conclusions:

• Coagulation screening and ROTEM suggest a sustained hypercoagulation state in the first three weeks postpartum.
• These findings highlight a critical window of thrombotic risk.
• Further research is warranted to explore clinical management strategies for this period.