View clinical trials related to Hemorrhage.
Filter by:Severe acute brain injury (SABI), including large artery acute ischemic stroke, intracerebral hemorrhage, and severe traumatic brain injury continue to be the leading cause of death and disability in adults in the U.S. Due to concerns for a poor long-term quality of life, withdrawal of mechanical ventilation and supportive medical care with transition to comfort care is the most common cause of death in SABI, but occurs at a highly variable rate (for example in Traumatic Brain Injury (TBI) 45-89%). Decision aids (DAs) are shared decision-making tools which have been successfully implemented and validated for many other diseases to assist difficult decision making. The investigators have developed a pilot DA for goals-of-care decisions for surrogates of SABI patients. This was developed through qualitative research using semi-structured interviews in surrogate decision makers of TBI patients and physicians. The investigators now propose to pilot-test a DA for surrogates of SABI patients in a feasibility trial.
This research study aims to study the use of tranexamic acid (TXA) in total joint replacement (arthroplasty) of the hip (THR) and knee (TKR).
40 pregnant females at term diagnosed with morbidly adherent placenta and planned for elective cesarean section were recruited and randomized to 2 groups. Group A: Internal iliac ligation followed by cesarean hysterectomy. Group B: cesarean hysterectomy.
Introduction: Obstetric hemorrhage is the most feared complication that can occur during childbirth and continues to be the leading cause of death in pregnant women worldwide, about 7 women die every hour in the world. This is defined as an accumulated loss of blood of more than 1000 mL with signs and symptoms of hypovolemia within 24 hours of the birth process. The main objective of resuscitation in these patients is precisely to reduce the deleterious effects that are generated from the depletion of volume and the altered capacity of oxygen transport. The current debate focuses on the safety and efficacy of each particular liquid during resuscitation and on improving long-term patient outcomes. At present, there is no conclusive evidence on the impact at the level of acid-base status, hydroelectrolytic balance and potential kidney injury with respect to the use of balanced solutions such as Plasma-Lyte or Ringer's Lactate. Objective: To determine the differences in the volume of liquids and blood products required with the use of balanced crystalloids (Ringer's Lactate or Plasma-Lyte) in patients with obstetric hemorrhage in the Hospital Universitario Fundación Santa Fe de Bogotá during 2018 - 2019. Design, Materials, and methods: Historical cohort analytical study. All patients over 18 years of age who present an obstetric hemorrhage defined as bleeding> 1000 mL or less associated with signs or symptoms of hemodynamic instability will be included. The most important exclusion criterion is the presence of active infection at the time of the event. Patients will be divided into two groups, those who underwent hydroelectrolytic resuscitation with Plasma-Lyte and Ringer Lactate. Results and conclusions With this study, we intend to describe the differences in the base acid status measured by arterial gases in patients with obstetric hemorrhage. The aim is to find a relationship between the different groups with clinical outcomes, such as days of ICU stay and hospitalization, blood transfusion requirement, electrolyte disorders, acute kidney injury and survival.
This proposed study is unique in that patients will not undergo computed tomography (CT) simulation at any point during their treatment course and will instead have same-session magnetic resonance (MR)-only simulation and treatment planning, on-table, using the adaptive radiotherapy (ART) workflow. In this manner, patients requiring urgent treatment could initiate treatment as early as the day of initial radiation oncology consultation.
In this research study the investigators want to learn more about how a medication called tranexamic acid (TXA) could help reduce bleeding during Periacetabular Osteotomy (PAO) surgery. TXA is approved by the Food and Drug Administration (FDA) for the reduction of bleeding for many types of surgical procedures. TXA works by slowing the breakdown of blood clots and helps to prevent bleeding. From previous studies, TXA has been shown to effectively prevent bleeding in patients undergoing heart, spine and skull remodeling surgeries. As PAO surgery has been associated with significant blood loss when compared to other types of joint surgeries. In order to try and avoid bleeding that may lead to complications, different strategies can be used. In this research study the investigators want to learn more about how a medication called tranexamic acid (TXA) could help reduce bleeding during PAO surgery.
The investigators are planning that can these markers be used a predictive marker at SAH and for this aim we will study both patiens' blood sample and their CT image.
The primary aim of this study is to evaluate whether pulse oximetry based noninvasive hemoglobin (SpHb) monitoring can reduce the incidence of hemoglobin (Hb) level out of the target range in adult patients undergoing major surgery with the potential risk of bleeding.
Background: Over the past decade, the use of extracorporeal membrane oxygenation (ECMO) for respiratory support in adults has increased. Several trials have highlighted how red blood cells transfusion can cause several negative effects and, currently, a restrictive transfusion trigger in critically ill patients is widely accepted. The optimal management of anticoagulation targets and transfusion practice in veno-venous-ECMO (VV-ECMO) patients is still under debate. Traditionally, the threshold for transfusions of packed red blood cells (PRBC) in ECMO is aimed at keeping hemoglobin (Hb) values in the normal range (12-14 g/dL), but some case series have shown how the Hb target can be lower, and with comparable clinical outcomes. While there are extensive reviews on predicted ECMO survival, and management (even with many debated issues), there is a significant knowledge gap in understanding the benefits and risks of transfusions during VV-ECMO Methods/Design: Prospective observational multicenter study. The principal aim is to describe current effective blood product usage, during VV-ECMO. The secondary aim is to describe in a large cohort of ECMO patients the current anticoagulation strategy and bleeding episodes occurrence. The study will be conducted at a multicenter level including in each center all consecutive adult vv-ECMO patients during one year up. The data collection will include pre-ECMO characteristics, transfusion strategies and blood test results during the first twenty-eight days after ECMO cannulation or until the end of ECMO support if the length is shorter, and clinical outcomes up to the end of ICU stay. The descriptive variable end points for the primary aim will be the daily and the total amount of PRBC and other blood products (Plasma, Platelets, Fibrinogen, Antithrombin III). The descriptive variable end points for the secondary aim will be the type and dose of anticoagulation, and episodes of bleeding according to site and severity. Expected Results: A collaborative combination of ECMO centers will evaluate prospective data of transfusion practices during ECMO. The investigators would be able to describe the currently strategy for administration of blood products, anticoagulation and the effective incidence of bleeding episodes worldwide.
Spontaneous intracerebral hemorrhage (ICH) remains a significant cause of morbidity and mortality around the globe. The most common etiology of nontraumatic spontaneous ICH is hypertensive arteriopathy (HA), while cerebral amyloid angiopathy (CAA) is the most prevalent cause of spontaneous lobar ICH in the elderly. Both HA and CAA belong to the family of cerebral small vessel disease (cSVD). cSVD involves pathological processes that affect the arteries, arterioles, capillaries, and veins on the surface and beneath the brain. The resultant changes of cSVD in the brain vasculatures can be detected with neuroimaging, includes cerebral microbleeds, white matter hyperintensities, lacunes, dilated perivascular spaces, and brain atrophy. Investigators of this study have probe into various imaging markers in patients with cSVD. Investigators found that the lacune and cerebral microbleeds location was related to distinct underlying etiology of cSVD. Further, investigators utilized amyloid PET study to directly quantified the cerebral amyloid burden, and demonstrated the correlation between amyloid deposition and deep/superficial microbleeds ratio. The association between cerebellum microbleeds, which is a novel marker for cSVD, and the underlying pathology in patient with spontaneous ICH has been investigated. Investigators also summarized and published the current research of different cSVD imaging markers and its implication on patient care. Cerebrovascular reactivity (CVR) represents the phenomenon that cerebral vessels dilate or constrict in response to stimuli, which provides insights into the vascular reserve information. The vascular reserve parameter is complementary to steady-state vascular index, such as cerebral perfusion or other neuroimaging markers. Measurement of CVR using advanced MR techniques is an emerging technique with multiple potential clinical utilities, and impaired autoregulation may contribute to the pathogenesis of cSVD. Recently, diminished CVR under visual stimuli has been linked to vascular amyloid deposits and related vascular dysfunction. Clarifying the mechanism of cSVD-related brain injury would be an important step towards identifying candidate treatment approaches. The goal of this study is to understand the features of CVR in patients with cSVD-related spontaneous ICH, for the purpose of establishing new biomarkers in cSVD diagnosis and understanding the underlying pathophysiology.