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Hemorrhage clinical trials

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NCT ID: NCT04937868 Recruiting - Aortic Dissection Clinical Trials

Developing a Decision Instrument to Guide Abdominal-pelvic CT Imaging of Blunt Trauma Patients

NEXUS AP CT
Start date: January 15, 2018
Phase:
Study type: Observational

Unrecognized abdominal and pelvic injuries can result in catastrophic disability and death. Sporadic reports of "occult" injuries have generated concern, and physicians, fearing that they may miss such an injury, have adopted the practice of obtaining computed tomography on virtually all patients with significant blunt trauma. This practice exposes large numbers patients to dangerous radiation at considerable expense, while detecting injuries in a small minority of cases. Existing data suggest that a limited number of criteria can reliably identify blunt injury victims who have "no risk" of abdominal or pelvic injuries, and hence no need for computed tomography (CT), without misidentifying any injured patient. It is estimated that nationwide implementation of such criteria could result in an annual reduction in radiographic charges of $75 million, and a significant decrease in radiation exposure and radiation induced malignancies. This study seeks to determine whether "low risk" criteria can reliably identify patients who have sustained significant abdominal or pelvic injuries and safely decrease CT imaging of blunt trauma patients. This goal will be accomplished in the following manner: All blunt trauma victims undergoing computed tomography of the abdomen/pelvis in the emergency department will undergo routine clinical evaluations prior to radiographic imaging. Based on these examinations, the presence or absence of specific clinical findings (i.e. abdominal/pelvic/flank pain, abdominal/pelvic/flank tenderness, bruising abrasions, distention, hip pain, hematuria, hypotension, tachycardia, low or falling hematocrit, intoxication, altered sensorium, distracting injury, positive FAST imaging, dangerous mechanism, abnormal x-ray imaging) will be recorded for each patient, as will the presence or absence of abdominal or pelvic injuries. The clinical findings will serve as potential imaging criteria. At the completion of the derivation portion of the study the criteria will be examined to find a subset that predicts injury with high sensitivity, while simultaneously excluding injury, and hence the need for imaging, in the remaining patients. These criteria will then be confirmed in a separate validation phase of the study. The criteria will be considered to be reliable if the lower statistical confidence limit for the measured sensitivity exceeds 98.0%. Potential reductions in CT imaging will be estimated by determining the proportion of "low-risk" patients that do not have significant abdominal or pelvic injuries.

NCT ID: NCT04935866 Recruiting - Anemia Clinical Trials

Optimal Brain Oxygenation in Neurologic Intensive Care Unit : The NeurO2 Study

NeurO2
Start date: May 7, 2021
Phase:
Study type: Observational

The NeurO2 study is a multicenter observational study looking at NIRS monitoring in neurocrocritically ill patients during the acute phase of care following an acute brain injury. The study is nested within the HEMOTION Trial and the SAHaRA Trial

NCT ID: NCT04916210 Recruiting - Clinical trials for Mild Cognitive Impairment

Determinants of Incident Stroke Cognitive Outcomes and Vascular Effects on RecoverY

DISCOVERY
Start date: March 5, 2021
Phase:
Study type: Observational

The overall goal of the DISCOVERY study is to better understand what factors contribute to changes in cognitive (i.e., thinking and memory) abilities in patients who experienced a stroke. The purpose of the study is to help doctors identify patients at risk for dementia (decline in memory, thinking and other mental abilities that significantly affects daily functioning) after their stroke so that future treatments may be developed to improve outcomes in stroke patients. For this study, a "stroke" is defined as either (1) an acute ischemic stroke (AIS, or blood clot in the brain), (2) an intracerebral hemorrhage (ICH, or bleeding in the brain), (3) or an aneurysmal subarachnoid hemorrhage (aSAH, or bleeding around the brain caused by an abnormal bulge in a blood vessel that bursts). The investigators hypothesize that: 1. The size, type and location of the stroke play an important role in recovery of thinking and memory abilities after stroke, and pre-existing indicators of brain health further determine the extent of this recovery. 2. Specific stroke events occurring in individuals with underlying genetic or biological risk factors can cause further declines in brain heath, leading to changes in thinking and memory abilities after stroke. 3. Studying thinking and memory alongside brain imaging and blood samples in patients who have had a stroke allows for earlier identification of declining brain health and development of individualized treatment plans to improve patient outcomes in the future.

NCT ID: NCT04902248 Recruiting - Clinical trials for Upper Gastrointestinal Bleeding

OTSC vs. Angiographic Embolization in Patients With Refractory Non-variceal Upper Gastrointestinal Bleeding

Start date: November 27, 2021
Phase: N/A
Study type: Interventional

In the management of patients with acute upper non-variceal upper gastrointestinal bleeding, further bleeding is the most important adverse factor predictive of mortality. In the United Kingdom Audit on acute upper gastrointestinal bleeding, clinical evidence of further bleeding was reported in 13% of patients following the first endoscopy and 27% of them died. The use of OTSC has emerged as an alternative before angiographic embolization(TAE) which is often considered most definitive. We propose to define the algorithm in the management of patients with refractory bleeding from their peptic ulcers or other non variceal causes. We hypothesize that endoscopic use of OTSC compares favourably with TAE and both lead to similar outcomes. An equivalence of the two modalities may mean that endoscopic application of OTSC should be attempted before TAE as often we need to document further bleeds with endoscopy and a second treatment should be instituted at the same time.

NCT ID: NCT04879485 Recruiting - Hemorrhage Clinical Trials

Prehospital Transfusion Strategy in Bleeding Patients

Start date: May 3, 2021
Phase: N/A
Study type: Interventional

The aim of study is to compare clinical and biochemical effect of three different transfusion strategies among patients with major hemorrhage requiring prehospital transfusion. A) Present prehospital standard treatment including a mixture of plasma and Red blood cell transfusion (RBC) transfusion B) Red blood cell transfusion (RBC) only C) Plasma transfusion only Hypothesis: 1. Transfusion strategy including a mixture of RBC and plasma is superior as compared with only plasma or only RBC strategy in terms of initial treatment of circulatory shock (expressed as base deficit). 2. Endothelial function and ability of clot formation is preserved to a greater extent in patients receiving plasma.

NCT ID: NCT04877184 Recruiting - Clinical trials for Intracerebral Hemorrhage

Feasibility Study of Transcranial Ultrasound Stimulation (TUS) on Stroke Patients

Start date: July 8, 2021
Phase: N/A
Study type: Interventional

Currently, the main treatment method for Intracerebral Hemorrhage (ICH) is medication or surgery. However, the effectiveness of medicines is moderate and there are several side effects. In this clinical trial, we would like to enhance the protein levels of brain derived neurotrophic factor in the brain by the transcranial ultrasound stimulation (TUS). By this technology, the symptoms of ICH could be alleviated and the side effects of medicines might be avoided. Preclinical trials have also shown that low-intensity pulsed ultrasound can alleviate the degree of neuroinflammation, neurodegeneration and significantly improve motor and cognitive deficits after brain injury. The purpose of this clinical trial is to evaluate the safety and feasibility of TUS for the treatment of patients with hypertensive intracerebral hemorrhage. The primary safety assessment indexes are brain magnetic resonance imaging (MRI) and brain magnetic resonance angiography (MRA). The secondary safety assessment indexes include weight, vital signs, electrocardiogram, general blood biochemical tests, adverse reaction events, and concurrent drug tracking. The feasibility assessment includes blood specific biomarker expression and neurological function & quality of life scales.

NCT ID: NCT04867837 Recruiting - Clinical trials for Acute Major Bleeding

Study of OCTAPLEX in Patients With Acute Major Bleeding on DOAC Therapy With Factor Xa Inhibitor

Start date: September 1, 2021
Phase: Phase 3
Study type: Interventional

This is a multicentre, prospective, randomised, double-blinded, group-sequential, parallel-group, adaptive design, phase 3 study to demonstrate the haemostatic efficacy and safety of four-factor prothrombin complex concentrate, OCTAPLEX, in patients with acute major bleeding on DOAC therapy with factor Xa inhibitor. Patients will be randomised 1:1 to either of two study groups: low-dose vs. high-dose OCTAPLEX.

NCT ID: NCT04867109 Recruiting - Clinical trials for Endometrial Neoplasms

HE4 in the Diagnostic Approach of Endometrial Cancer in Patients With Postmenopausal Bleeding

METRODEC
Start date: June 25, 2021
Phase:
Study type: Observational

This study aims to explore the sensitivity of an innovative marker, HE4, in the diagnosis approach of endometrial cancer in case of postmenopausal bleedings.

NCT ID: NCT04857632 Recruiting - Clinical trials for Intracerebral Hemorrhage

Statin for Neuroprotection in Spontaneous Intracerebral Hemorrhage

STATIC
Start date: August 6, 2021
Phase: Phase 2/Phase 3
Study type: Interventional

Brain injury after spontaneous intracerebral hemorrhage results from pathophysiologic responses in the brain parenchyma due to hematoma formation, release of clot components, and surrounding edema. Inflammatory cascade activation in the perihematomal brain parenchyma has been implicated in the pathogenesis of secondary brain injury. Statins have been identified as a potential neuroprotective agent that targets the inflammatory response to intracerebral hemorrhage. In preclinical studies, statin treatment in animal intracerebral hemorrhage models has consistently demonstrated neuroprotective and recovery enhancement effects. Clinical investigations in humans reported better patient outcomes associated with statin use in patients with intracerebral hemorrhage, including reduced perihematomal edema, lower mortality rates, and improved functional outcomes.

NCT ID: NCT04855877 Recruiting - Clinical trials for Anterior Cruciate Ligament Rupture

Oral Administration of Tranexamic Acid in Anterior Cruciate Ligament Surgery Reduce Postoperative Haemarthrosis

Start date: July 6, 2021
Phase: Phase 4
Study type: Interventional

To find superiority relationship between oral and intravenous administration of tranexamic acid on peroperative and postoperative blood loss, haemarthrosis prevalence and improvement functional prognosis in anterior cruciate ligament arthroscopy.