Active clinical trials for "Hemorrhage"

Dapsone is a drug that has been used clinically for several decades due to its anti-infective effect, making it widely available. Its neuroprotective effects have been found through its glutamate receptors antagonistic effect. Their main objective was to study the neuroprotective properties in patients with aneurysmal subarachnoid hemorrhage and high-risk factors for the development of cerebral vasospasm. Both the placebo and the dapsone used in this clinical trial were provided by the institution's neurochemistry laboratory.

Postpartum haemorrhage continues to be a leading cause of maternal morbidity and mortality worldwide and that is according to the estimates of the World Health Organization in 1998. Average blood loss during delivery progressively increases with the type of delivery, vaginal delivery (500 ml), cesarean section (1000 ml) and emergency hysterectomy (3500 ml) of blood. A reduction of operative blood loss at cesarean section has a great benefit to the patients in terms of decreased postoperative morbidity and a decrease in risks associated with blood transfusions. The routine use of oxytocin is associated with a significant reduction in the occurrence of postpartum hemorrhage. Excessive blood loss as estimated by a 10% drop in the hematocrit value postdelivery or by need for blood transfusion, occurs in approximately 4% of vaginal deliveries and 6% of cesarean births. Although many delivery units use oxytocin as the first line agent to prevent uterine atony at cesarean section, it may not be the ideal agent for prevention of postpartum haemorrhage especially in compromised patients with preeclampsia, cardiac disease or prolonged labor. Oxytocin and specifically its preservative chlorobutanol increases the heart rate and has negative inotropic, antiplatelet and antidiuretic effects. Misoprostol, a prostaglandin E1 analogue, has been shown in many studies to be an effective myometrial stimulant of the pregnant uterus which binds to prostanoid receptors. Misoprostol administration, either by oral or rectal route, has been shown to be effective in prevention of postpartum haemorrhage and is considered as an effective alternative to other conventional oxytocics especially in developing countries as it is cheap and thermostable. Pharmacokinetic studies suggested that the bioavailability of misoprostol after sublingual administration was higher than those after oral or vaginal administration. A few studies are now available for the use of sublingual misoprostol in the prevention of postpartum haemorrhage following vaginal delivery and have reported it as an effective and convenient route of administration. However, none of the studies conducted so far have evaluated the response of sublingual misoprostol for prevention of postpartum haemorrhage during cesarean section.

to compare effectiveness and tolerability of carbetocin versus syntometrine in prevention of Postpartum hemorrhage after cesarean section

To determine whether there is a difference in effectiveness of routine uterine tonus assessment (every 15 minutes, for 2 hours) when performed by a midwife or self-administered by a patient on the incidence of postpartum haemorrhage, mean blood loss, and other maternal and neonatal outcomes.

The purpose of this study is to compare the efficacy between video capsule endoscopy and CT enterography in diagnosis of obscure gastrointestinal bleeding.

The purpose of this study will be to evaluate a standardized, evidence-based protocol versus a conventional approach for the dosing of oxytocin in vaginal delivery.

The objective of this study is to compare two community-level strategies: either selective, early administration of 800 mcg sublingual misoprostol to women for secondary prevention of postpartum hemorrhage (PPH) or universal use of 600 mcg oral misoprostol at the time of delivery for prophylaxis of PPH. The significance of this cluster randomized non-inferiority trial is its potential to inform service delivery programs on clinical outcomes, program feasibility, cost, and acceptability of two different community models of PPH care using misoprostol.1. The study hypothesizes that a service delivery model that administers misoprostol for secondary prevention is non-inferior to a model that administers misoprostol for universal prophylaxis.

Background: Repeated episodes of bleeding from gastrointestinal vascular malformations refractory to endoscopic or surgical therapy often pose a major therapeutic challenge. Methods: The investigators will perform a randomized, double blind, placebo controlled study of thalidomide as a retreatment therapy for recurrent gastrointestinal bleeding due to vascular malformation. Patients with failure of first course treatment of thalidomide will be randomly grouped, prescribed a second four-month course regimen of 25 mg of thalidomide or placebo orally four times daily. All patients will be monitored for at least one year. The primary end point is defined as the patients whose rebleeds decrease from baseline by ≥ 50% at 12 months and the cessation of bleeding. Rebleeding is defined based on a positive fecal occult blood test (FOBT) (monoclonal colloidal gold color technology) at any visit after treatment. Secondary outcomes include the participants dependent on blood transfusions and changes from baseline in transfused packed red cell units, bleeding episodes, and hemoglobin levels at 12 months. Statistical significance is defined at P < 0.05.

250 women will be randomly divided into 2 equal groups using computer generated random numbers. Group 1 will receive Carbetocin 100 µgm (Pabal® Ferring, UK) and group 2 will receive oxytocin 5IU (Syntocinon®, Novartis, Switzerland). Both drugs will be diluted in 10ml saline and will be given by the slowly intravenously after delivery of the anterior shoulder. The investigators will not include a control group for ethical reasons.

This trial will address the effect of uterine artery ligation during Cesarean section in cases with placenta previa to decrease blood loss.