View clinical trials related to Blood Loss.
Filter by:Oxytocin is the first-line drug to promote contraction of the uterus and prevent atony immediately after delivery. Nonetheless, unpredictable uterine atony refractory to oxytocin affects roughly 250,000 parturients annually in the U.S. and rates are increasing. This two-part study will measure the action of oxytocin at cesarean delivery. The first part will measure the pharmacokinetics of a single intravenous (IV) dose of deuterium-labeled oxytocin. The second part will measure the pharmacodynamics of all plasma oxytocin to see how concentrations correspond to the contractile effect on the uterus. After delivery of the fetus, study subjects will receive a bolus of IV deuterated oxytocin followed by an unlabeled oxytocin infusion. Venous blood samples drawn at multiple time points (within 1 hour after delivery) will be analyzed for plasma concentrations of labeled and unlabeled (endogenous + exogenous infused) oxytocin over time. Plasma concentrations will be compared with 0-10 uterine tone scores measuring uterine contraction strength, to describe the concentration-effect relationship. The goal of this study is to define both the pharmacokinetics and pharmacodynamics of oxytocin in parturients to help identify the cause(s) of failed first-line oxytocin therapy.
This study is a prospective cohort study, led by Prof. Zhao Yangyu, from the Department of Gynecology & Obstetrics, Peking University Third Hospital.
This is a prospective, observational exploratory study of the performance of the Quantra System in adult patients that are undergoing an arterio-venous (AV), veno-venous (VV) ECMO or extra-corporeal life support (ECLS) procedure.
Tranexamic acid is an antifibrinolytics agent that has been widely used in the reduction of blood loss at surgeries. Oral clonidine is an alpha-2 adrenergic agonist that has been used in various surgeries including Caesarean section.
Blood loss is an important issue following intertrochanteric femoral fracture and may lead to requiring blood transfusions and transfusion complications. Tranexamic acid is a commonly used drug to decrease blood loss and the number of transfusions. The aim of our study is to determine the effectiveness of tranexamic acid use to reduce total blood loss during proximal femoral nailing for the intertrochanteric femoral fracture in the elderly. Patients aged >65 years and diagnosed with intertrochanteric fracture will be included in the study. The patients will be numbered according to the admission to the hospital and randomly divided into two groups. First group will receive tranexamic acid infusion and second group will not receive tranexamic acid infusion. Total blood loss will be calculated using Nadler formula. The primary outcome of the study is total blood loss. The secondary outcomes are a number of transfusions, and surgical blood loss during the operative procedure.
The overall objectives and purpose of this study is to show that the Smith and Nephew Werewolf Fastseal 6.0 Bipolar Sealer is an effective tool to aide the surgical team in providing significant hemostasis during anterior total hip arthroplasty which would subsequently improve patient outcomes.
The project focuses on the possibility of detecting blood loss using electrical impedance tomography. Based on previous animal experiments, it was found that the bolus of saline significantly affects the signal of chest bioimpedance. It is assumed that blood loss of a similar volume will cause a similar signal change with the opposite trend. The aim of this project is to determine whether there is a significant change in the thoracic electrical impedance tomography signal when blood loss is caused by voluntary blood donation.
To evaluate the effectiveness of topical TXA in reducing blood loss compared to H2O2 wash. The primary outcomes : 1. Estimation of Intraoperative blood loss and blood transfusion. 2. Recording Postoperative blood drainage. 3. Comparing Hemoglobin levels (pre and postoperative). The secondary outcomes : 1. Surgical site infection (SSI) 2. Length of hospital stay.
A comparison of outcomes between use of oral tranexamic acid as compared to oral placebo in the first days after total knee replacement will be made to determine impact on clinical indications and patient reported outcomes.
Blood volume measurements are a critical step in the emergency care of trauma patients. The typical approach to this is to rely on historical information, physical examination and metrics such as heart rate. There is currently no good real-time measure to track blood volume. This study investigates the use of phonocardiography (listening to the sounds made by the heart) to track changes in central blood volume.