The Hemostatic Management of Postpartum Hemorrhage

Postpartum hemorrhage (PPH) is one of the leading causes of maternal morbidity and mortality worldwide. It is typically defined as blood loss exceeding 500 milliliters following vaginal delivery or more than 1000 milliliters after cesarean section. The condition can escalate rapidly, leading to hypovolemic shock, coagulopathy, and death if not managed effectively. The most common causes of PPH are summarized by the «4 Ts»: uterine atony (Tone), retained placental tissue (Tissue), genital tract trauma (Trauma), and coagulation disorders (Thrombin).

Hemostatic management of PPH begins with rapid clinical assessment and stabilization of the patient. Immediate interventions include establishing large-bore intravenous access, initiating fluid resuscitation, and preparing for blood transfusion. Uterine massage and administration of uterotonic agents such as oxytocin are frontline treatments to stimulate uterine contraction and reduce bleeding. Pharmacologic strategies play a central role in hemostatic control. Tranexamic acid (TXA), an antifibrinolytic agent, has been proven to significantly reduce mortality from PPH when administered within three hours of bleeding onset. Transfusion of blood components is often necessary in severe PPH, guided by the patient’s hemodynamic status and laboratory findings. Point-of-care testing, such as viscoelastic testing, allows for targeted transfusion strategies. Fibrinogen levels should be maintained above 2 grams per liter, often requiring supplementation with cryoprecipitate or fibrinogen concentrate.

When pharmacologic measures are insufficient, mechanical or surgical interventions are warranted. In cases where all conservative efforts fail, hysterectomy may be required to save the patient’s life. Hospitals should have welldeveloped massive transfusion protocols and multidisciplinary teams ready to respond rapidly to obstetric hemorrhage. The effective hemostatic management of postpartum hemorrhage depends on early recognition, timely medical and surgical intervention, and coordinated multidisciplinary care. The implementation of evidence-based guidelines and continued education for healthcare providers are essential to improving maternal outcomes in the face of this obstetric emergency.
During this webinar, clinicians, clinical pathologists, PhDs and clinical laboratory staff will have the opportunities to update their knowledge on PPH, how core lab and point of care tesing may help prevent deleterious outcome.