Active clinical trials for "Postpartum Hemorrhage"

Postpartum hemorrhage (PPH) is a leading cause of maternal morbidity and mortality worldwide and is caused most commonly by poor uterine muscle (myometrium) tone after delivery. The first line agent used in the prevention and treatment of PPH is oxytocin. Women who require augmentation of labor with intravenous oxytocin because of inadequate labor progression have been shown to be at increased risk of PPH. Typically, for augmentation of labor, oxytocin is used as a continuous infusion, with no consensus on the initial dose, its increments or maximal limit. High concentration continuous oxytocin infusions are not without theirs risks, which include hyperstimulation, fetal distress, as well as uterine rupture. Studies have shown the clinical benefits of pulsatile oxytocin delivery for labor induction and augmentation with regards to requirement of less total oxytocin, similar uterine contractility and similar rates of caesarean delivery when used for labor induction and augmentation. However, the rate of PPH as a primary outcome measure has not been investigated. Therefore we currently do not know the effect of pulsatile oxytocin delivery on the rate of PPH. The investigators hypothesize that the effect of myometrial desensitization following pulsatile oxytocin exposure would be lower when compared to continuous oxytocin exposure. These results will help in establishing whether myometrial contractility and sensitivity to oxytocin can be better preserved by delivery of pulsatile oxytocin, rather than continuous oxytocin for labor induction and augmentation, and thereby result in less PPH.

This study is a randomized, double-blind, placebo controlled trial that will enroll 250 women (125 per study arm). The objective of the study is to determine the efficacy and tolerability of oral tranexamic acid when used as an adjunct to misoprostol for treatment of postpartum hemorrhage (PPH). Women will be diagnosed with postpartum hemorrhage if blood loss reaches 700ml in the calibrated receptacle. If diagnosed with postpartum hemorrhage , the woman will be randomized to receive either tranexamic acid or placebo, both in tablet form. All participants will receive 800 mcg sublingual misoprostol (4 tablets 200mcg each). The investigators hypothesize that tranexamic acid (in tablet form) as an adjunct to misoprostol will be more effective than misoprostol alone in stopping postpartum bleeding without recourse to further treatment in significantly more women.

The purpose of this study is to determine the effects of peripartum hysterectomy for maternal hemorrhage.

The purpose of this study is to compare the ability of an isolated sample of uterine muscle tissue (in a tissue bath) to contract in the presence of various drugs. The drugs studied--uterotonics--are typically used to contract the uterus when a pregnant patient continues to bleed after delivery. Oxytocin is an old standard, but seems to suffer from a desensitization phenomenon. Carbetocin, a similar drug, has recently been suggested to clinicians as a replacement for oxytocin directly after certain types of Cesarean section. The investigators will be testing isolated uterine muscle samples after pre-treatment with oxytocin OR nothing (control) to increasing concentrations of oxytocin OR carbetocin. Contractile measures will be measured and compared between all groups. The investigators hypothesize that oxytocin pre-treatment will reduce contractions in both oxytocin- and carbetocin-induced contractions, and oxytocin and carbetocin will induce different patterns of contractions.

Post-partum hemorrhage (PPH) is a major cause of maternal death worldwide. Oxytocin is the most common uterotonic drug used to prevent and treat PPH in North America, however, there are some limitations to its use. Oxytocin has a very short duration of action, which requires a continuous infusion to achieve sustained uterotonic activity. The Society of Obstetricians and Gynecologists of Canada (SOGC) has recently recommended a single 100mcg dose of carbetocin at elective Cesarean delivery to promote uterine contraction and prevent post partum hemorrhage (PPH), in lieu of the more traditional oxytocin regimens. Carbetocin lasts 4 to 7 times longer than oxytocin, with a similar side effect profile and apparent greater efficacy rate. However, a dose response study to determine the minimum effective dose of carbetocin has not yet been published. The investigators hypothesize that the minimum effective dose (ED90) is at least 20mcgs (or perhaps below) in women undergoing elective Cesarean delivery.

The purpose of this study is to evaluate the effectiveness of two doses of carbetocin (50 mcg vs 100 mcg) in preventing uterine atony during elective cesarean section.

Post-partum hemorrhage (PPH) is a major cause of maternal death worldwide. Oxytocin is the most common uterotonic drug used to prevent and treat PPH in North America, however, there are some limitations to its use. Oxytocin has a very short duration of action, which requires a continuous infusion to achieve sustained uterotonic activity. The Society of Obstetricians and Gynecologists of Canada (SOGC) has recently recommended a single 100mcg dose of carbetocin at elective Cesarean delivery to promote uterine contraction and prevent post partum hemorrhage (PPH), in lieu of the more traditional oxytocin regimens. Carbetocin lasts 4 to 7 times longer than oxytocin, with a similar side effect profile and apparent greater efficacy rate. However, a dose response to determine the minimum effective dose of carbetocin has not yet been published. The investigators hypothesize that the minimum effective dose (ED90) is above 20mcgs and below 80mcgs in women undergoing elective Cesarean delivery.

The aim of this clinical research project is to evaluate the use of the recombinant human activated factor VII (rhFVIIa), given as a salvage therapy, in women with a dramatic postpartum hemorrhage still ongoing after all the currently available medical and surgical treatments. We are going to compare its early use, before elective surgery or arterial embolization, to its late use, after embolization or surgery, before salvage hysterectomy.

The purpose of this study is to test whether misoprostol is as effective as oxytocin for treating primary postpartum hemorrhage (PPH) with uterine atony as the suspected cause in two circumstances: 1) where women have received prophylactic uterotonics in the third stage of labor; and 2) where no prophylactic uterotonics have been given in the third stage of labor.

Postpartum haemorrhage (PPH) remains a leading cause of maternal mortality, despite treatment with conventional methods. Uncontrolled reports and three small randomised controlled trials have suggested that misoprostol may have an additive effect to routine treatment, and there is a serious danger that this method will be used widely without research to document the effectiveness or risks of this method. In this randomised controlled trial (RCT), we propose to test whether 600 μg of sublingually administered misoprostol in women requiring additional uterotonics after delivery, and after routine syntocinon to all women during or after delivery, has additional effects above the additional conventional uterotonics in reducing PPH. Women with measured blood loss greater than or equal to 500 mls in 4 Karachi hospitals who give consent will be given locally routine treatment for PPH. In addition, they will be enrolled by drawing the next of a series of randomised treatment packs containing misoprostol or placebo. The primary outcome measure will be blood loss greater than or equal to 500 mls after enrolment.