View clinical trials related to Blood Loss.
Filter by:The purpose of this study is to compare the blood loss during sinus surgery looking at two different types of anesthesia: either intravenous anesthesia with propofol or inhalational anesthesia with sevoflurane.
The purpose of this study is to find out, whether filtration of the blood in patients undergoing cardiac surgery, beneficially influences the coagulation system.
Tranexamic acid(TXA) is an antifibrinolytic agent to reduce blood loss in cardiac surgery. Previous seven RCTs comparing effects of TXA in pediatric cardiac surgery showed conflict results. The reason why they showed mixed results would be the imbalance of patients population with regard to presence of cyanosis. TXA would reduce blood loss in pediatric cardiac surgery with well balanced patients population.
The purpose of this study is to determine if the agent, Floseal, can decrease the amount of blood patients lose after total knee replacement (TKR) surgery. If this product can be found to have an effect on bleeding, it may potentially reduce the problems associated with bleeding after knee replacement surgery such as pain, stiffness, and the need to have a blood transfusion. The subject's overall participation will be over a period of 6 weeks.
Vasoconstrictive agents are increasingly being used in order to decrease blood loss during vaginal hysterectomy. The first reported study of the use of a vasoconstrictive agent for this purpose was on the use of epinephrine injected intracervically preoperatively by England, et. al. They demonstrated a significant decrease in the amount of blood lost during the surgery but also demonstrated a significant increase in the risk of post-operative infections, most frequently a vaginal cuff cellulitis requiring antibiotic treatment. Recent studies using vasopressin as the vasoconstrictive agent have also found the same significant decrease in blood loss while not demonstrating a difference in the rate of post-operative infections. The more recent studies by Speer and Unger , and Kammerer-Doak, et.al. were larger, better designed studies and are considered more credible. More surgeons are therefore injecting vasopressin intracervically preoperatively. Some surgeons believe that the injection of vasopressin intracervically prior to the initial incision of a vaginal hysterectomy effects surgical plains and therefore makes the surgical dissection more difficult. This is thought to possibly both add to operative time and increase the rate of complications. The aforementioned studies used the injection of saline as a control for the injection of vasopressin or epinephrine. To date, no study has compared the use of vasopressin versus no injection in a controlled, randomized manner. We do not know if the injection of saline intracervically may actually increase the amount of bleeding over the baseline and therefore the decreased blood loss caused by the injection of vasopressin my actually be overestimated. We propose to compare the effects of injecting vasopressin intracervically preoperatively versus no preoperative medication. We will not only evaluate the amount of operative blood loss, but also compare operative time and complication rates.
The purpose of this study is to compare the hemoglobin results obtained with 1) the HemoCue™, 2) the Masimo SpHb™, and 3) the UCSF Clinical Laboratory. The goal is to determine if these three values differ from each other during various levels of blood loss in the clinical care of patients for spine revision and hip revision surgery.
The primary objective of this study is to compare blood loss resulting from surgical termination of pregnancy up to 12 weeks gestation between women who are anticoagulated to therapeutic levels and those who are not anticoagulated. This study is based on the hypothesis that anticoagulant therapy does not increase intraoperative blood loss in women receiving surgical abortions up to 12 weeks gestation.