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Active clinical trials for "Hemorrhage"

Results 2861-2870 of 2870

Pituitary Dysfunction After Aneurysmal Subarachnoid Hemorrhage

Thyroid DisfunctionSubarachnoid Haemorrhage From Cerebral Aneurism Rupture1 more

Recently, the occurrence and potential impact of pituitary dysfunction after aSAH has gained increasing interest. Several studies have demonstrated pituitary dysfunction after SAH suggesting that pituitary dysfunction may be a contributing factor for residual symptoms after SAH. This is an observational multicentric study aimed to test the prevalence of thyroid abnormalities, other neuroendocrinological dysfunction and their influence on outcome of patients affected by aSAH.

Unknown status2 enrollment criteria

Incidence and Effects of Sleep Apnea on Intracerebral Aneurysms

Sleep Apnea (Defined as Apnea Hypopnea Index > 5/h)Intracranial Aneurysm Size3 more

Patients with intracerebral aneurysm will be screened for sleep apnea using out of center polysomnography/polygraphy. Baseline blood pressure and medication will be assessed. Patients will be followed for up to 5 years to examine the increase in aneurysm size, rupture rate and changes in medication.

Unknown status4 enrollment criteria

Observational Study of Patients With Subarachnoid Hemorrhage

Subarachnoid Hemorrhage

This prospective, observational study aim to identify : Prognostic factor of patients with subarachnoid haemorrhage in neuro intensive care unit The impact of standard therapeutic used (surgery, embolization ; medical treatment of vasospasm ; treatment of complications like hyponatremia, stress myocardiopathy, …)

Unknown status2 enrollment criteria

Etiology and Prognostic Risk Factors of Intracerebral Hemorrhage in Beijing

Intracerebral Hemorrhage

There were lack of data and analysis about medical management, etiology, and long-term outcome of Intracerebral Hemorrhage (ICH) in Beijing. In this study the investigators do acute CT angiography, a non-invasive imaging method to explore etiology and prognostic risk factors of ICH. Further the investigators will aim to develop and validate a risk score for predicting 1-year functional outcome after ICH.

Unknown status5 enrollment criteria

Effect of Sleep Apnea on Blood Pressure Control and Outcome Early After Subarachnoid Hemorrhage...

Subarachnoid HemorrhageSleep Apnea

In this observational study patients with subarachnoid hemorrhage (SAH) will be screened for sleep apnea (SA) to investigate if SA is associated with impaired blood pressure control and worse clinical outcome early after SAH.

Unknown status6 enrollment criteria

Heart Rate and Initial Presentation of Cardiovascular Diseases (Caliber)

Abdominal Aortic AneurysmCoronary Heart Disease NOS13 more

Study of heterogeneity in associations between heart rate and the initial presentation of 12 cardiovascular diseases.

Unknown status4 enrollment criteria

Lung Ultrasound Safety in Humans

Pulmonary Hemorrhage

The purpose of this study is to investigate if diagnostic ultrasound as it is routinely performed in humans causes lung hemorrhage significant enough to appear on thoracic CT. The investigators' hypothesis is that diagnostic lung ultrasound will not cause lung hemorrhage in humans. Damage to the lung in animal models has been shown to be mechanical rather than thermal in nature and evidence suggests that this injury is likely not from inertial cavitation but from alveolar resonance. Models of the alveolar resonance theory predict that hemorrhage should not happen in adult human lungs if the ultrasound frequency is higher than 1.69 MHz and mechanical index (MI) is less than 1.9 which is maintained with standard scanning protocol for thoracic ultrasound. A previous human study showed no gross macroscopic lung hemorrhage in patients undergoing transesophageal echocardiography with pressures of 2.4 MPa and MI 1.3 with exposure durations ranging 7-68 minutes. The investigators propose to perform a routine lung ultrasound exam on patients who are scheduled to undergo chest computed tomography evaluation for pulmonary embolus as part of their routine care. The ultrasound will be performed immediately prior to CT imaging and markers will be placed on the patients chest to ensure the correct lung tissue is being evaluated. There will be two sham markers so the radiologist will be blinded to which tissue had ultrasound applied and which did not. The CT scan will then be evaluated per routine and also to see if there are signs of microscopic or macroscopic hemorrhage under the skin markers.

Unknown status2 enrollment criteria

Thrombelastogram in Patients Receiving Antiplatelet Medication Undergoing Cardiac Surgery

Bleeding

Study Objective is to correlate the results of preoperative platelet mapping derived from modified TEG with clinically significant postoperative bleeding and consumption of blood products.

Unknown status5 enrollment criteria

The Impact of Rockall Risk Scoring System on Management of Upper Gastrointestinal System Bleeding...

Gastrointestinal Hemorrhage

The patients who admit to emergency department with upper gastrointestinal system bleeding will undergo a clinical evaluation with Rockall Risk Scoring System. The patients with Rockall score of 1 or less will be discharged with medical treatment, and will have an elective upper gastrointestinal endoscopy in the end of the 30th day. The impact of Rockall Risk Scoring System on assessing the necessity of emergency endoscopy, length of hospital stay, morbidity, and mortality in low-risk patients will be evaluated.

Unknown status9 enrollment criteria

Pilot Bleeding Study: Risk and Protective Factors Associated With Bleeding in the Hemodialysis Population...

BleedingEnd Stage Renal Disease

This study is examining the risk and protective factors associated with bleeding in the hemodialysis population.

Unknown status2 enrollment criteria
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