View clinical trials related to Blood Loss.
Filter by:Assess the effect of skin rewarming during lower body negative pressure upon arterial blood pressure and tolerance to simulated blood loss after exercise in the cold.
The study is a prospective, non-randomized, non-blinded, non-significant risk study enrolling up to 60 healthy adult subjects consented to undergo a 1-unit whole blood draw procedure. Subjects will wear the study device (CM-1500) while positioned in either a supine or reclined position during the blood draw and study-required physiological parameters will be captured pre-, during, and post-donation.
Lower extremity amputation patients represent a frail group of patients with extensive comorbidity. The most common indication of amputation is ischemia, infection and concomitant ischemic pain due to underlying chronic disease, especially arteriosclerosis and diabetes. Prolonged general anesthesia and surgery as well as increased blood loss may result in impaired patient safety. Previous studies have shown total blood loss approx. 1000 mL in transfemoral amputations (TFA). Substantial blood loss during surgery increases the risk of anemic complications and death for this already weakened patient group. The aim of this randomized controlled trial is to improve patient safety by exploring the possibility of a more precautious surgical procedure for TFA. Hence, investigating the total blood loss and secondary differences in complications after TFA between patients operated with use of pneumatic tourniquet versus no tourniquet. Total blood loss is calculated via Nadlers approach. From a pilot series, sample size was calculated to 124, allocated 1:1 in two groups of 62 participants, to ensure detection of at least 200 mL difference in total blood loss. The hypothesis is that use of tourniquet will decrease the total blood loss, the amount of blood transfusions, time of surgery and complications related to postoperative anemia without a higher rate of adverse events. The secondary and explorative outcomes are blood transfusions, intraoperative blood loss, length of stay, time of surgery, risk of readmission, risk of re-operation, risk of mortality, complications during admission, quality of life (QoL), prosthesis use and the prosthesis-specific survey Prothesis Evaluation Questionnaire (PEQ). QoL is measured with the validated questionnaire EQ-5D-5L preoperatively, and at 3, 6, and 12 months postoperatively. The possibility to enhance patient safety is highly relevant, and this trial will aid in establishing evidence-based guidelines for TFA surgery.
The purpose of this study is to access the efficacy of the drug tranexamic acid in reducing blood loss during burn excision surgery.
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.
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.
Study of blood loss in preeclamptic patients using mathematical formulae
Assessing the efficiency of Prophylactic use of local tranexamic acid during vaginal hysterectomy to reduce blood loss during operation
The aim of this study is to investigate whether therapy with intravenous iron carboxymaltose in patients with iron deficiency anemia (IDA) listed for orthotopic liver transplantation (OLT) increases hemoglobin concentrations and reduces intraoperative transfusion of packed red blood cells (PRBCs). The investigators hypothesize that therapy with intravenous iron will increase hemoglobin concentrations and reduce intraoperative transfusion of PRBCs in patients with IDA listed for OLT.
Although angiographic embolization has been introduced for preoperative management of spine metastases in 1975 and is suggested today by many authors in the management of such pathologies, it needs to be confirmed by RCT. It is a minimally invasive procedure, not free from complications. The recent meta-analyzes, due to the limited number of patients included are not exhaustive about the effectiveness of embolization in the reduction of the intraoperative bleeding, especially in the context of poor / moderate metastasis vascularization. We want to evaluate the efficacy of preoperative angiographic embolization of intermediate / poor vascularized spine metastases in reducing intraoperative blood loss during excision surgery.