Temporary Aortic Compression With the Abdominal Tourniquet for Refractory Postpartum Hemorrhage

The AAJT-S is a non-invasive, externally applied medical device designed to achieve temporary occlusion of the abdominal aorta and inferior vena cava by inflating a pneumatic bladder to 250 mmHg. In this study, the device will be used as a temporizing measure for patients with severe postpartum hemorrhage unresponsive to standard uterotonics and balloon tamponade. The device will be applied horizontally over the upper abdomen and inflated using a built-in pressure gauge. The intended effect is to reduce pelvic blood flow and allow time for mobilization of surgical resources and blood transfusion. Maximum application time will not exceed 60 minutes, in accordance with established safety guidelines.