Active clinical trials for "Hemorrhage"

This will be a multicenter prospective observational study carried out in China. The investigators will collect data in a pre-specified Case Report Form. Main data from each patient will include demographics, endoscopy classification, and both endoscopy and pharmacological treatments received by patients. Data from each patient will be prospectively collected from the day the patient is diagnosed as peptic ulcer bleeding by endoscopy and receives endoscopy treatment if the investigator thinks it is needed and up to 30 days afterwards. The proportion of peptic ulcer bleeding patients who are at high risk is the primary outcome variable. High risk is defined as the patients with endoscopy Forrest classification Ia to IIb. The rate and type of endoscopic treatment, the rate of successful endoscopy treatment, the re-bleeding rate and the endoscopic re-treatment rate in high risk peptic ulcer bleeding patients will be collected. The surgery rate and mortality rate in high risk and overall patient population will be calculated.

Delayed ischemia caused by cerebral vasospasm remains a common cause of morbidity and mortality after aneurysmal subarachnoid hemorrhage. A great deal of drugs has been tested in the last years. Phase II randomized clinical trials have demonstrated that statin decreases the incidence of symptomatic cerebral vasospasm after spontaneous subarachnoid hemorrhage. Clinical, double blind, randomized controlled trials with placebo. Discussion: Even though some articles have shown that statins provide better prognosis, some issues remain in debate, e.g., treatment duration and the choice of the statin.

Since the introduction of vitrectomy in 1971, this procedure has become the third most frequently performed ophthalmic surgery. Approximately 225,000 vitrectomies are performed annually in the United States and indications continue to expand. Known long-term complications of vitrectomy are relatively few and include retinal detachment and cataract formation. Although much has been written in the literature concerning acute rises in intraocular pressure (IOP) in the immediate postoperative period, there is surprisingly little information on long term IOP outcomes after vitrectomy. A recent report by Chang given at the LXII (62) Edward Jackson Memorial Lecture hypothesized a causal relationship between vitrectomy and open-angle glaucoma (OAG) via oxidative stress exacerbated by removal of the crystalline lens. A second report by Luk and colleagues reported similar conclusions in a modified cohort. Both studies, were retrospective in nature and did not perform baseline evaluations to exclude pre-existing glaucoma. Furthermore neither study accounted for natural history. Finally, our analysis has not reproduced similar results. The primary purpose of this study is to analyze the full spectrum of optic nerve and macular changes between vitrectomized study eyes and their non-vitrectomized fellow eyes to control for natural history. Baseline evaluations will include examination by fellowship trained retina and glaucoma specialists, fundus photography, autofluorescence, optical coherence tomography (macula and optic nerve) and automated visual field testing. At 3 month then annually for 5 years after vitrectomy surgery, the cohort will undergo similar evaluation.

The purpose of this study is to estimate the proportion of Ventricular Assist Device (VAD) patients with abnormal gastrointestinal bleeding as assessed by HemoQuant fecal occult blood test. Also, in patients with gastrointestinal bleeding present, to summarize the extent of gastrointestinal bleeding; to examine the behavior of HemoQuant fecal occult blood test over time by estimating the proportion of VAD patients with a positive test prior to implantation; at one week, one month, three months, six months and one year post implantation, and after explantation of the VAD and to evaluate whether presence of any abnormal fecal HemoQuant test is predictive of a future major bleeding event.

This study is conducted in Europe. The aim of this prospective, observational study are to describe the different clinical practice and detailed haemostatic management of activated recombinant human factor VII (NovoSeven®) in patients with acquired haemophilia in France. The secondary aim is to assess the primary haemostasis disorder associated with the coagulation disorders, if available.

The purpose of this study is explore how cerebrospinal fluid (CSF) drainage impacts outcomes for patients diagnosed with subarachnoid hemorrhage (SAH). This is a non-randomized observational study of two physician-prescribed approaches to managing intracranial pressure monitoring and CSF drainage for SAH patients. The study will enroll only those patients who have intracranial pressure (ICP) monitoring in situ. Because this is an observational study, there are no physical risks to the patient, the only risk is loss of confidentiality.

Increasing air travel has resulted in a significant increase in aeromedical evacuation over the past decade. However there is only a small amount of epidemiological data available on the diagnosis, costs and transport characteristics of aeromedical evacuation cases. In the present study Cases of aeromedical evacuation by a relief organization (Workers' Samaritan Federation Germany) were analyzed based on the following criteria: age, sex and diagnosis of the patient, ventilation mode, days of illness before transport, type of transport, flight routes, flying time, flight distance, type of aircraft, type and distance of connecting transport from the destination airport to the final hospital, total cost per repatriation, and costs per flight-minute of each transport type.

A wide variety of individuals are at risk for bleeding, but even though bleeding symptoms are common it is difficult to compare different people's symptoms. Recent research has found that carefully designed surveys can be used to calculate a bleeding score that is useful for diagnosing bleeding disorders, but normal individuals have not been specifically studied in large numbers with a comprehensive survey. Whether factors like race, ethnicity, age, sex, aspirin use, and previous trauma and surgery influence bleeding scores is also unknown. The primary goal of this study is to use a comprehensive computerized questionnaire to record the bleeding symptoms of normal individuals and then assess the range and severity of bleeding symptoms in this normal population. Secondary goals include determining whether race, ethnicity, age, sex, aspirin use, and previous trauma and surgery correlate with bleeding symptoms.

Advances in newborn intensive care have lead to dramatic improvements in survival for the most premature infants-often weighing 1 pound at birth. Unfortunately, cerebral palsy, mental retardation, and developmental delay affect more than 10,000 of these premature infants in the U.S. annually. In his studies, Dr. Jeffrey R. Kaiser is trying to understand why these premature infants are at such high risk of brain injury, and to learn ways to prevent injury. Experts believe that disturbances of brain blood flow regulation are important in causing these injuries. Using a novel continuous monitoring system, Dr. Kaiser is able to determine an infant's capacity for normal brain blood flow regulation. Contrary to previous thinking, he has shown that many of these babies in fact due have normal regulation of their brain blood flow. He has observed that brain blood flow may be disturbed during suctioning of the breathing tube. Further, he has also shown that infants with high carbon dioxide, those not breathing well, have impaired regulation of their brain blood flow. Thus, even stable infants are prone to disturbed brain regulation during routine intensive care, which may lead to bleeding in the brain and long-term neurologic problems. Dr. Kaiser will study up to 200 infants to determine 1) the developmental pattern of normal regulation of cerebral blood flow; 2) in those with impaired regulation, determine when it develops during the first week of life; and 3) determine the relationship between impaired brain blood flow regulation and brain injury. Results from this study will help us recognize when premature infants are most vulnerable to developing brain injury, allowing prevention and intervention strategies to be initiated in a timely fashion.

Introduction and Aims: The objective of this prospective study is to evaluate the risk factors of minor head injury in all consecutive patients of one year.