View clinical trials related to Hemorrhage.
Filter by:In all the Western populations, the annual incidence of subarachnoid hemorrhage (SAH) increase with age. In patients older than 70 years, the occurrence of SAH exposes them to high risk of morbidity and a poor quality of life. In this age bracket, the single randomized which compared endovascular coiling to microsurgical clipping (ISAT Study) showed that the relative risk of morbidity increased after coiling. Moreover, some prospectives studies about endovascular coiling described favorable outcome in 48% to 63% of patients, complete occlusion in 51% to 69% and a procedural complication rate in 13% to 19%. From prospectives series, the proportion of favorable outcome after microsurgical clipping was estimated around 66% but the procedural complications are few reported. The outcome for patients treated conservatively was catastrophic. Lastly, the hydrocephalus in this age class is common, occurring in 55% of patients. The study hypothesis is that, in this age class, no difference exists between the 2 obliteration procedures. An accurate evaluation of result in term of functional disability, quality of life and prognosis predictive factors seems a judicious question.
In unselected cirrhotic patients with bleeding esophageal varices to compare the influence on mortality rate, duration of life, quality of life, and economic costs of treatment of: - Emergency portacaval shunt, and - Emergency and long-term endoscopic sclerotherapy.
Upper gastrointestinal tract hemorrhage (UGIH) remains a major cause of morbidity and mortality . Nasogastric aspiration (NGA) is routinely performed in patients with UGIH to obtain important clinical data and make therapeutic decisions. But routine use of NGA remains controversial with studies reporting its usefulness and its redundant clinical information. Early esophagogastroduodenoscopy (EGD) is recommended by most gastrointestinal societies to allow for risk stratification and to perform endoscopic treatments. The results of the NGA may assist to differentiate between high-risk versus low-risk lesions. Our hypothesis is that presence of NGA can identify lesions that require endoscopic treatment and provides important clinical information to guide the treating physician. In addition, we hypothesized that the results of the NGA influence the clinical decision of the treating physician regarding the prediction of the need for endoscopic therapy. This observational randomized cross-sectional study will enroll consecutive patients with presumed UGIH and randomized them to NGA and no NGA recording its results. All patients will receive an EGD and its results will also be recorded. Subsequently, we will evaluate if the NGA is important in identifying endoscopically significant lesions. The information gained will help guide clinicians evaluating patient with UGIH.
Diabetic premacular hemorrhage occurs when blood from preretinal neovascular tissue is entrapped between the retina and the posterior hyaloid in the macular area. It may occur spontaneously or secondary to traction from a localized posterior vitreous detachment. This complication may greatly disturb the central vision and may be an important stimulant of fibrovascular proliferation. Bevacizumab (Avastin, Genentech, Inc.) is a humanized monoclonal antibody against vascular endothelial growth factor (VEGF), which has been used to treat a variety of neovascular ocular diseases. In proliferative diabetic retinopathy, intravitreal bevacizumab has been shown to induce prompt regression of neovascularization and may enhance resolution of vitreous hemorrhage. In this study, we propose that simultaneous intravitreal injection of gas and bevacizumab may be a useful treatment option in diabetic premacular hemorrhage with active fibrovascular tissue. In this procedure, gas is used to displace the blood while bevacizumab may render the neovascularization less active to decrease the likelihood of recurrent hemorrhage.
We believe ongoing bleeding during complex cardiac surgery can be accurately measured and that administration of a specific blood product replacement strategy designed to optimally slow or stop the bleeding can be followed by the during the operation. Patients at risk of significant bleeding after complex cardiac surgery will be approached to allow their operation to be watched by study personnel to see if ongoing blood loss can be accurately measured and to see how quickly a prescribed, standardized blood product replacement protocol to control the bleeding does slow or stop the bleeding. Permission to review the medical record to see if bleeding risk features can be identified and permission to follow the patient after surgery to see how they recover is also requested.
The purpose of this study is to assess if aprotinin (BAY A0128), given intravenously during surgery, is safe and can help reduce the amount of bleeding and the need for a blood transfusion during hip replacement surgery. Patients undergoing major surgery are at risk for significant blood loss. Because of this, there is a need for drugs that will help slow the amount of bleeding during surgery.
The purpose of this study was to determine the efficacy and safety of clevidipine for treating acute hypertension (high blood pressure, defined as systolic blood pressure >160 mmHg) in patients with intracerebral hemorrhage (i.e., bleeding in the brain; stroke).
Annually, almost 5,000 extremely low birth weight (9 ounces to about 2 lbs) infants born in the US survive with severe bleeding in the brain (intraventricular hemorrhage); this devastating complication of prematurity is associated with many problems, including mental retardation, cerebral palsy, and learning disabilities, that result in profound individual and familial consequences. In addition, lifetime care costs for these severely affected infants born in a single year exceed $3 billion. The huge individual and societal costs underscore the need for developing care strategies that may limit severe bleeding in the brain of these tiny infants. The overall goal of our research is to evaluate disturbances of brain blood flow in these tiny infants in order to predict which of them are at highest risk and to develop better intensive care techniques that will limit severe brain injury. 1. Since most of these infants require ventilators (respirators) to survive, we will investigate how 2 different methods of ventilation affect brain injury. We believe that a new method of ventilation, allowing normal carbon dioxide levels, will normalize brain blood flow and lead to less bleeding in the brain. 2. We will also examine how treatment for low blood pressure in these infants may be associated with brain injury. We believe that most very premature infants with low blood pressure actually do worse if they are treated. We think that by allowing the infants to normalize blood pressure on their own will allow them to stabilize blood flow to the brain leading to less intraventricular hemorrhage. 3. In 10 premature infants with severe brain bleeding, we have developed a simple technique to identify intraventricular hemorrhage before it happens. Apparently, the heart rate of infants who eventually develop severe intraventricular hemorrhage is less variable than infants who do not develop this. We plan to test this method in a large group of infants, to be able to predict which infants are at highest risk of developing intraventricular hemorrhage and who could most benefit from interventions that would reduce disturbances of brain blood flow.
Bleeding is a frequent complication during surgery. The peri-operative administration of blood products, including packed red blood cells, thrombocytes and fresh frozen plasma (FFP), is often deemed necessary. Therefore the transfusion of allogenic blood products mandates strategies to optimize the clinical decision to transfuse. The decision to administer FFP is usually made in the absence of any data. Point of care testing of prothrombin time ensures that a major parameter of coagulation is readily available. The test is fast, easy to perform, inexpensive and may enable physicians to rationally determine the need for FFP. Objective of the study is to determine the effectiveness of point of care coagulation testing of prothrombin time to reduce the administration of FFP.
A large number of patients are currently on Antiplatelet inhibition using aspirin or Plavix therapy (A Thieno pyridine - ADP mediated platelet inhibitor). A group of these patients often require Cardiac and/or Vascular surgical procedures. These patients are at a higher risk for perioperative bleeding complications and higher re-operation/re-exploration for bleeding and subsequent blood product transfusions. The aim of this protocol is to assess platelet function via the "Verify Now" device prior to surgery. The Verify Now device requires a small drop of fresh blood for each sample and is an FDA approved device. The investigators initial goal is to establish if a certain degree of platelet function abnormality can predict a higher bleeding complication or higher transfusions (Phase I, 20 patients). This initial study will allow us to determine a sample size for Phase II. Phase II will maintain the same protocol, however after completion of Phase I, a more accurate sample size determination can be made. Additionally, the investigators want to establish if knowledge of platelet dysfunction will change procedure technique or preparation to lower bleeding and/or lead to cancellation/rescheduling of procedure (Phase III). Participants will be those patients who are taking plavix and are undergoing vascular or cardiac surgery. They will undergo a platelet function evaluation measured as Platelet Response Unit (PRU) via the "verify now" device on admission/pre surgery. This test involves taking 1 drop of blood from the patient, one time, before the procedure. The Verify Now device is FDA approved. Perioperative bleeding will be assessed by absolute drop in hematocrit immediate post-op compared to the immediate preoperative value. An additional discharge hematocrit will be used if no blood products have been used during the initial hospital stay. Hematocrit evaluation via a complete blood count is a part of standard patient care. Additionally, utilization of blood products (factors, PLT, PRBC's, etc.) will be assessed. In order to conduct the research, patients will be identified by reviewing the OR schedule. All consecutive patients on ASA/Plavix will be mailed a letter in order to introduce them to the study. The letter provides a phone number to call if the patient does NOT want to receive a phone call from the investigative staff. This letter is uploaded under item 18-02 of the study application. If patients do not call the office, then the investigative staff will call the potential participants to introduce the study. Final consent will be completed in PACU on arrival at the hospital for planned surgical procedure. A Hematocrit will be performed on the consented patient preoperatively, immediately post-op, and at discharge. A PRU will be assessed using a few drops of the patients' blood preoperatively (PACU). Patients' records will be reviewed to assess use of blood products. No additional follow up is required. Patients' care will be no different than current standard of care, other than the 1 "verify now" test, which is done before the procedure.