Related Experiment Video
Updated: Mar 28, 2026

Laparoscopic Extracorporeal Knot-Tying for Uterine Vessel Occlusion during Hysterectomy with Cervical Cerclage in Large Uteri
Published on: September 12, 2025
Obstetric hemorrhage
1Baylor College of Medicine, Texas Children's Hospital, Texas Children's Hospital, Women's Pavilion, 6651 Main St, Suite F1096, Houston, TX 77030.
Despite the availability of potent drugs, effective surgical techniques, and extensive blood banking facilities, post-partum hemorrhage remains a major cause of death in the United States. A hemorrhage bundle developed by the New York Safe Motherhood Initiative provides clear guidelines for reducing such deaths. This bundle focuses on risk assessment, preparation, diagnosis, and the provision of several management algorithms. Implementation of the protocols and approaches contained in this document, or their equivalent, on a systems basis and a consideration of several additional recommendations for individual care will reduce the likelihood of death from hemorrhage.
Despite the availability of potent drugs, effective surgical techniques, and extensive blood banking facilities, post-partum hemorrhage remains a major cause of death in the United States. A hemorrhage bundle developed by the New York Safe Motherhood Initiative provides clear guidelines for reducing such deaths. This bundle focuses on risk assessment, preparation, diagnosis, and the provision of several management algorithms. Implementation of the protocols and approaches contained in this document, or their equivalent, on a systems basis and a consideration of several additional recommendations for individual care will reduce the likelihood of death from hemorrhage.
Related Concept Videos
Epistaxis
Etiology
Possible causes of this condition include high blood pressure, trauma, low humidity, upper respiratory tract infections, allergies, foreign bodies, nasal inhalation of corticosteroids or illicit drugs, excessive use of decongestant nasal sprays, facial or nasal surgery, anatomic malformation, tumors, or systemic...
Disorders of Hemostasis
Thromboembolic Disorders
Two factors primarily cause thromboembolic conditions.
Measurement of Blood Pressure
Ovarian Cycle
Blood Pressure Imbalances and Circulatory Shock
Blood Pressure: Hypertension and Hypotension
Normal blood pressure is 120/80 mm Hg. Elevated blood pressure is 120-129/under 80 mm Hg. Hypertension, warranting treatment at 130/80 mm Hg, is often asymptomatic and can lead to severe cardiovascular events, aneurysms, peripheral arterial disease, chronic renal disease, or cardiac...
Fetal Circulation
Two umbilical arteries transport blood from the fetus to the placenta. At the placenta, the blood absorbs oxygen and nutrients while simultaneously eliminating waste products. This oxygen-enriched and nutrient-rich blood then returns to the fetus through one...

