Cesarean Section Complications Clinical Trial
Official title:
The Effect of Intramyometrial Tranexamic Acid Versus Intramyometrial Oxytocin in Reducing Blood Loss During and After Elective Cesarean Section in Term Primigravida: A Double-blinded, Randomized, Comparative-placebo Trial
Cesarean section is the most prevalent operation among women globally, 10-15% (1, 2). Recent research has shown Egypt to be the third-largest country globally, with an estimated 52% cesarean sections (3). However, the cesarean section has many serious complications, including the primary postpartum hemorrhage (PPH) (4). During labor, the average blood loss is about 300 to 400 ml. Bleeding postpartum is known as losing over five hundred milliliter of blood following a vaginal birth and losing over one thousand milliliter after the cesarean section (5). The prime cause of maternal death rate is postpartum bleeding, predominately in poor countries, and the estimated mortality number due to postpartum bleeding is one hundred thousand per year (6). Therefore, it is essential to reduce bleeding during and after CS to diminish maternal mortality and morbidity (7). The most successful technique for decreasing PPH is the active third stage labor management, requiring prophylactic uterotonic drugs like oxytocin, ergometrine malate, prostaglandins (E1, E2, and F2α), and combinations of them, or hemostatic agent as tranexamic acid (Kapron) and Etamsylate (Dicynon) (8, 9).
Study design: This study is a double-blinded prospective randomized comparative Clinical trial to compare and evaluate the effectiveness of intra-myometrial oxytocin injection and intra-myometrial tranexamic acid injection in reducing the risk of postpartum bleeding after cesarean delivery in primigravida at term. The study will be conducted in Maternity hospital, Fayoum University, Fayoum, Egypt, during june 2024 to December 2025. After The Ethical Research Committee approval on study protocol, fifty primigravida women at term pregnancy, undergoing elective cesarean delivery will be divided and allocated randomly into two groups after fulfillment eligibility criteria. Fifty women will be included in this clinical study at admission to the labor ward. Written informed permission will be acquired following advising about this study and potential implications. A history in details and clinical examination for all patients to rule out general health problems. Vaginal and Abdominal examinations will be done. Routine preoperative investigations and obstetric ultrasound examinations will be done for all women to ensure that all inclusion criteria were present. The computer will be used for randomization to allocate the patients into two equal groups. Randomization cards will be produced, sealed and stored; sequentially black wrappers will be numbered. The hospital pharmacy is producing packages, and physicians and nurses were unaware of their contents. For the entire length of the trial, all study personnel and participants are blinded to therapy. A senior registrar will execute a cesarean section before the commencement of research, which performs at least 300 cesarean sections. All cesarean section will be operated via spinal anesthesia; the abdomen will be entered through the Pfannenstiel incision. The sealed envelope is carried to the operating room and transferred without informing the researcher or the patients about their contents. The anesthesiologist is administering the medication (Oxytocin or tranexamic acid). After fetal birth and before placental delivery, patients assigned to the oxytocin group (n = 75): 5 I.U of oxytocin (syntocinone 5 I.U/1ML NONARTIS-EGYPT) shall be watered down in 10 cc of saline, and 5 cc shall be injected into each uterine corn before the placental separation. In TXA group (n=75): 1 g from tranexamic acid (kapron®, Amoun, Egypt) shall also be watered down in 10 cc of Saline, and 5 cc shall be injected in each uterine corn before the placenta is separated. The primary outcome is to decrease Intra and postoperative blood loss to reduce PPH risk after CS. After a skin incision, the estimated blood loss would begin. The towels are weighted in (mg) with their covers, using an exact digital balance, before and following the operation, and the weight variation is measured between dryish and saturated towels. Blood loss is counted as follows during the operation: volume contents in the suction container in (ml) (X), the towel weight variation in (gm), (Y) (weight of saturated towels in (gm) - weight of dry towel in (gm)), the amniotic liquid amount in (ml) (Z). Operational blood loss in (ml) = (X+Y) - Z (18). All women are calculated according to the underlying law for permissible blood loss. Allowable blood loss = The estimated volume of blood x (initial hematocrit - final lowest acceptable hematocrit)/ initial hematocrit, an estimated volume of blood = weight of the patient in (kg) multiplies by average volume of blood (75-85 ml/kg) (19). ;
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