Active clinical trials for "Hemorrhage"

This study was designed to evaluate the efficacy of leucocyte free autologous platelet rich plasma on blood loss, pain, wound healing and functional outcome after total knee arthroplasty. The investigators hypothesized that application of platelet rich plasma would help in reducing blood loss, postoperative pain and expedite wound healing and better short-term functional outcome following total knee arthroplasty.

A quarter of all pregnancy and child-birth related deaths are due to excessive bleeding after the birth, "post-partum haemorrhage" (PPH). In the UK, PPH affects approx 10% of new mothers. PPH can be frightening for women and cause them to need additional treatments prolonging their hospital stay. Commonly PPH is caused by an inadequately contracted womb after childbirth. Giving the mother an injection of "uterotonic" medicine following the birth of their baby can prevent this. It reduces the risk of PPH by 66%. In the UK, the two medicines most commonly used are Syntocinon and Syntometrine. Syntometrine is longer acting, but a published review of trials concluded that Syntometrine is no better at preventing severe blood loss. Syntometrine is associated with more side effects including nausea, vomiting, and high blood pressure, and has been linked with rare, but fatal, cases of stroke. All guidelines therefore recommend Syntocinon for preventing PPH.Following a telephone survey of all maternity units in the UK, 71.4% of units still routinely use Syntometrine. Carbetocin is a newer medicine, already widely used after caesarean section, but not yet after vaginal birth. Other studies have shown that Carbetocin is slightly better at preventing bleeding after birth when compared to Syntometrine, has fewer side effects than Syntometrine, and that it may be just as good as Syntocinon at preventing PPH. No studies have directly compared all three medicines or compared their overall cost; information vital to the NHS. Investigators propose a trial of 5712 women over 13 months, in four maternity units to compare the effectiveness, side effects and cost of Syntocinon, Syntometrine and Carbetocin, for women having a vaginal birth. Women will be randomly allocated to receive one of these drugs. Women and staff will not know which drug they receive. Staff will collect data such as the number of extra drugs and treatments needed and the volume of blood lost. Women will be asked to complete a side effects questionnaire. Investigators will perform an analysis of cost effectiveness once all results are available. Aim: To directly compare the effectiveness, side effects and cost of Syntocinon, Syntometrine and Carbetocin given intramuscularly to prevent PPH in the 3rd stage of labour.

Lowe syndrome is associated with mutations in the OCRL1 gene, which encodes OCRL1, a phosphatidylinositol-4, 5-bisphosphate (PtdIns(4, 5)P (2))5-phosphatase. PtdIns(4, 5)P2, a substrate of OCRL1, is an important signaling molecule within the cell. An abnormal rate of hemorrhagic events was found in a retrospective clinical survey, suggesting platelet dysfunction. The main objective of the study is to confirm the presence of platelet dysfunction in Lowe syndrome and to characterize this abnormality.

The purpose of this study is to determine if giving oxytocin immediately after delivery causes less bleeding, transfusion needs and hastens delivery of placenta.

This is a double-blind 3-arm randomized clinical trial to determine whether higher dose oxytocin regimens (compared to the standard regimen) reduce the frequency of uterine atony and postpartum hemorrhage after vaginal delivery. Uterine atony is a loss of tone in the uterine musculature which can cause acute postpartum hemorrhage, which is the major cause of maternal mortality worldwide. Oxytocin is routinely administered postpartum in the US and effectively reduces uterine atony. The optimal dose of oxytocin for vaginal delivery is not known.

Visual outcomes of the eye with large subretinal hemorrhages (bleeding under the retina) due to Age-Related Macular Degeneration (AMD) are poor. The Submacular Surgery Trial (SST) showed that no statistically significant improvement in vision resulted from surgical removal of the layer of abnormal blood vessels causing the bleeding. However, placement of a gas bubble into the gel of the eye along with removal of the blood has shown some success. However, this does not treat the underlying condition of the AMD. Intravitreal injections (into the gel of the eye) of a drug called Lucentis has been shown to be highly effective in the treatment of AMD, yet its penetration through areas of thick blood caused by subretinal hemorrhage is not known. This study is proposing to treat the AMD causing the subretinal hemorrhage with a vitrectomy (surgery involving removing the gel inside the eye, and membrane layers of the eye) followed by Lucentis placed between the layers of the retina and then with or without a gas bubble. In order to determine if the the subretinal Lucentis alone is beneficial, 5 of the 10 patients enrolled will get a gas bubble and the other 5 will not.

Evaluation of efficacy by determination of transfusion requirements and safety by determination of adverse events in administration of Von Willebrand factor concentrate F VIII (Haemate).

A large dose of PPI is effective in preventing peptic ulcer rebleeding. The investigators hypothesize that 40 mg/q6h pantoloc is equivalent to 8mg/h pantoloc in preventing rebleeding.

Prophylactic antibiotics have been routinely recommended for cirrhotic patients with upper gastrointestinal bleeding recently. However, the regimen and duration of its use remain an inconclusive issue. Quinolones and 3rd generation cephalosporins have been more often used for prophyalxis recently. The duration for antibiotic usage were variable in the literatures, ranged from 4-10 days. The latest guideline from AASLD in 2007 was 7 days. In the survey of infections in cirrhotic patients with UGI bleeding performed by Bernard et al, most infections occurred in the first 5 days and half within the first 48 hours. Therefore, considering the cost-effectiveness and drug resistance issues, the necessity for such prophylaxis for 7 days may need to be re-evaluated. The purpose of our study is to investigate the antibiotic prophylaxis duration for cirrhotic patients with acute gastro-esophageal variceal bleeding. We will enroll those patients suffering from variceal bleeding documented by endoscopic examination and without apparent evidence of infection. Those who have received antibiotics within 2 weeks, are less than 18 years old, get pregnant, have malignancy other than HCC, have allergy to ceftrioxone are excluded. After receiving well explanation and giving consent, these patients are randomly allocated to 2 groups and receive prophylactic antibiotic just after endoscopic examination; Group I: receiving ceftriaxone 500 mg iv bolus stat and then q12h for 3 days, Group II: receiving ceftriaxone 500 mg iv bolus stat and then q12h for 7 days. They will receive appropriate endoscopic treatment for gastro-esophgeal varices and glypressin 1mg q6h for 3 days. They will start to feed on the 2nd day if not contraindicated. The 2nd endoscopic treatment for varices will be performed 2 weeks later. We record the demographic data, vital signs, transfusion amount; check hemogram, U/A, CXR, ascites routine (with apparent ascites), classification of variceal size and Child-Pugh classification. We monitor the events of rebleeding & infection, transfusion amount and hospitalization days We use rebleeding rate within 14 days as the primary end point. It is defined as the following events after initial stabilization of vital signs for 24 hours; (1): recurrence of hematemesis or bloody stool (2); need of transfusion more than 2 unit of blood and systolic pressure < 100 mmHg or pulse rate > 100/mn. We use infection rate during admission and mortality rate within 28 days as secondary end points.

The bleeding caused by hip replacement surgery (CRT) is an important source of demand for blood in the hospital. Tranexamic acid (TXA) is a drug that has proved useful in reducing bleeding associated with other surgeries and CRT results have been positive, but the variety of dosages difficult to evaluate the results To determine the efficacy and safety of TXA in reducing bleeding caused by surgery of total hip replacement. PATIENTS: Patients ASA(American Society of Anesthesiologists) I-III that they are to perform hip replacement surgery and cementless unilateral total that have signed the informed consent. Group A: 1st dose 15mg/kg of TXA in 100ml saline 0.9% after the completion of regional anesthesia, and before the start of surgery. 2nd dose: intravenous infusion over 10 minutes in 100ml of saline 0.9% at three hours after the first administration. Group B: 1st dose: 10mg/kg of TXA in 100ml 0.9% saline after the completion of regional anesthesia, and before the start of surgery. 2nd dose: intravenous infusion over 10 minutes of 10mg/kg of TXA in 100ml saline 0.9% at three hours after the first administration. Group C: 1st dose: intravenous infusion over 10 minutes in 100ml of 0.9% saline after the completion of regional anesthesia, and before the start of surgery. 2nd dose: intravenous infusion over 10 minutes in 100ml of saline 0.9% at three hours after the first administration. STATISTICAL ANALYSIS Comparison of blood loss in groups and comparison of adverse events