Active clinical trials for "Aortic Aneurysm, Abdominal"

This will be a non-randomized, prospective, observational multi-center research study. Its purpose will be to assess the mortality and outcome of EVAR in patients with rAAA. As mentioned in the introduction, EVAR approach for ruptured bdominal aortic aneurysms is nowdays common clinical practice in many vascular centers , and the main treatment option in Hippokrateio General hospital. The same applies in all future participating vascular centers.

The purpose of this study is to compare acute technical outcomes of the Talent AAA Stent Graft system versus Cook Zenith Endograft at two high volume institutions, Albany Medical Center and St. Peter's Hospital in Albany, NY. The investigators are comparing the two devices as part of the evolution of endovascular repair (EVAR) for AAAs. The Zenith AAA Endovascular Graft received FDA approval on May 23, 2003, the Talent Abdominal Stent Graft System on April 15, 2008.

Deep learning applied to plain abdominal radiographic surveillance after Endovascular Aneurysm Repair (EVAR) of Abdominal Aortic Aneurysm (AAA).

This study evaluates a novel noninvasive method to dynamically monitor the effect of abdominal aortic aneurysm (AAA) and endovascular treatment of AAA (EVAR) on arterial pulse wave

Abdominal aortic aneurysm (AAA) disease is an abnormal bulging of the main abdominal artery, which is the called the abdominal aorta. The purpose of this observational study is to identify whether a blood biomarker protein RhoA can predict which small AAA patients may need surgery in the future. Participating patients will receive an ultrasound and blood draw. The patients will be divided into expanding and stable aorta groups after determining each patient's aortic expansion rate. The blood RhoA levels and aortic expansion rates between both groups would then be compared to look for any relationships.

The study is based on the premise that ultrasound is not commonly used in an ambulance. There are some departments that do deploy it into the field, but of those departments there is almost no data collected about its use. Currently Paramedics are not recognized by insurance companies as health care providers capable of performing ultrasound. If there were more data on the subject that may eventually change. We are hoping to prove that not only is ultrasound useful in an ambulance, but that paramedics are good at interpreting the results. We will save images, the paramedic's diagnosis and some basic information about the call. We will not save any protected health information (PHI) or any information linking the subject to the study. The data collected will be sent to a non-biased ultrasound reviewer to grade the images for the accuracy of diagnosis and the quality of the view obtained. This data will be used to formulate a report and statistics on paramedic's ability to perform ultrasound in the field.

Background and rationale of the study: Patients undergoing non-cardiac major surgery show a perioperative cardiac risk and postoperative complications, that can be stratified based on parameters linked to patient's conditions and to surgery types. An accurate identification of this risk could offer numerous advantages for these patients, who's 30-day mortality is around 2%. The identification of the correct risk could lead to a better pre- and postoperative management, that could guarantee a better surgery outcome and a faster postoperative recovery. To this day there is no perfect method to correctly estimate this risk. Various studies show that high BNP levels are linked to cardiac events at 30 and 180 days. Further investigations identify different groups, at low, intermediate and high risk, based on BNP levels. BNP is released by ventricular myocytes in response to a wall distress, due to an increased volume, pressure or myocardial ischemia. So BNP plasma levels could be used as a prognostic and diagnostic marker, improving the cardiac risk stratification in patients undergoing surgery and a much more precise management. This study is determined to do an evaluation of the correlations between pre- and postoperative BNP levels and the incidence of cardiac events in patients undergoing major vascular surgery.

Background: Open repair remains the gold standard for fit patients with complex AAA. In the past decade, an evolution of devices, design, components, and delivery systems expanded the application of EVAR in these challenging anatomies. Fenestrated stent-grafts are now commercially available for the repair of complex AAA in the United States and Europe. Initial reports have demonstrated a high technical success rate, low renal dysfunction rate, and low morbidity and mortality, with promising short- and long-term results. Other reports have shown excessive morbidity and mortality with fenestrated EVAR (FEVAR). Studies comparing endovascular and open repair are sparse, especially when it concerns long-term outcomes. There are till nowadays only two propensity score-matched studies, one showing worse short-term and another long-term clinical outcome for fenestrated-branched EVAR (F/BEVAR) over open surgical repair (OSR). Aim: The aim of this study will be to compare F/BEVAR versus open AAA repair on short- and long-term clinical outcomes for the treatment of juxta- and pararenal AAA. Methodology: This is a prospective cohort study from the four high-volume AAA repair centers: Belgrade/Serbia, Bologna/Italy, Milan/Italy, Dijklander/Netherland, Amsterdam/Netherland, and Helsinki/Finland. Data will be collected on demographics, baseline comorbidities, AAA parameters (diameter and localization), laboratory values, intra-, and postoperative data. Follow-up examinations (clinical visits and color duplex ultrasonography, CT scans) will be performed 1, 6, and 12 months after the intervention, and annually thereafter. Propensity score analysis will be performed by matching open repair patients to endovascularly treated controlling for demographics and baseline comorbidities. Endpoints: Primary endpoints are all-cause mortality and the freedom from aortic-related reintervention. The secondary endpoint is the 30-day complication rate, especially acute kidney injury according to the RIFLE criteria.

The purpose of this study is to examine the percentage of patients who present with abdominal aortic aneurysms (AAA) will also have intracranial aneurysms (IA) and conversely; to examine the percentage of patients who present with intracranial aneurysms will also have abdominal aortic aneurysms.

The ACRIN 7151 trial will use medical records abstraction data from participants with extracolonic findings (ECFs) reported from the ACRIN 6664 National CT Colonography Trial to: 1) measure incidence of diagnostic imaging, hospitalization, and interventional procedures associated with ECFs reported on computed tomography colonography (CTC), delineated by type of ECF; 2) determine potential predictors of follow-up diagnostic imaging, hospitalization, and interventional procedures, delineated by type of ECF; and 3) evaluate the clinical/pathologic diagnoses associated with indeterminate but potentially significant ECFs. These data can be used to incorporate ECFs into existing models on the cost-effectiveness of CTC in colorectal cancer screening and can potentially be used to develop guidelines for the reporting and management of ECFs.