View clinical trials related to Aneurysm.
Filter by:The Iliac Branch Endoprosthesis (IBE) 12-04 study will be a prospective, nonrandomized, multicenter, single-arm evaluation designed to assess the safety and efficacy of the IBE Device in subjects with common iliac artery aneurysms (CIAA) or aorto-iliac aneurysms (AIA).
To determine the prevalence of Abdominal Aortic Aneurysm (AAA) in the Spanish men over 60 years through a screening program in Primary Health Care using a hand-held ultrasound and to analyze the relationship between cardiovascular risk factors and cardiovascular disease in patients with AAA.
Abdominal aortic aneurysms (AAAs) continue to be a leading cause of death in older age groups. In the 60-85 year-old population, AAA represents the 14th-leading cause of death. Federal funding through Medicare has been allocated for early detection using abdominal ultrasound screening programs. Despite these more aggressive screening programs and concerted efforts by surgeons for timely repair, the incidence of ruptured AAA has continued to increase. Endovascular aneurysm repair (EVAR) has been the most common type of repair since 2006. Multiple studies reflecting decreased perioperative morbidity and mortality over open repair make this an attractive option for patients. EVAR requires more intensive follow-up than standard open surgical repair, however. Secondary interventions are more common to maintain "seal" of the endograft within the aorta and subsequent exclusion of the aneurysmal component. The term endoleak is specific to EVAR, and describes the primary means by which endografts fail. Type I endoleaks occur because of inadequate graft seal proximally or distally, resulting in perigraft flow and aneurysm sac pressurization. Type II endoleaks occur when branch arteries arising from the aneurysmal aorta back-bleed into the aneurysm sac due to collateral flow. Type III endoleaks occur when flow persists between segments of a modular graft. Type IV endoleaks occur when flow persists through endograft material (graft porosity). Type V endoleaks have also been called "endotension", and occur when pressurization of the sac occurs in the absence of any demonstrable endoleak. Type I and Type III endoleaks are most concerning for rupture, although persistent Type II endoleaks can also lead to aneurysm rupture and premature death. The most common method of EVAR follow-up is computed tomographic angiography (CTA). These studies allow accurate measurement of aneurysm sac diameters and volumes. They also are highly sensitive and specific for endoleaks. Type II endoleaks are treated if they remain persistent and are present in the setting of aneurysm sac enlargement. Type I and III endoleaks are immediately treated when identified. Type IV endoleaks are rarely seen with current endograft technology.
An investigator-initiated, prospective, consecutively enrolling, non-randomized single institution clinical evaluation of the safety and effectiveness of branched and fenestrated-branched endovascular stent grafts to preserve branch vessels when used in the treatment of patients with thoraco-abdominal aortic aneurysms. The study evaluates non-FDA-approved off the shelf and custom made branched and fenestrated-branched stent grafts manufactured by Cook Medical. The primary objectives of this study are to determine whether fenestrated-branched and branched endovascular grafts are a safe and effective method of treating patients with thoraco-abdominal aortic aneurysms.
The prevalence of Abdominal Aortic Aneurysm among 65 years old individuals worldwide is 1-2%. when diagnosis is confirmed by abdominal Ultrasound the prevalence is 5.5% in men and 1% in women. As abdominal aortic aneurysm and coronary heart disease share common risk factors, patients with acute coronary syndrome represent a high risk population in which screening for another atherosclerotic site is recommended. Patients admitted for ACS undergo routinely TTE. during the same study, TTE may offer the opportunity to evaluate the cardiac morphology and function and to screen for Abdominal Aortic aneurysm. It was reported by different studies that the Sensitivity of this technique was between 91-96% for AAA screening. In addition, this method is cheap, available and requires only 2-3 minutes to be added to the standard TTE. we plan to examine patients admitted with ACS in our Intensive Care Unit for screening AAA by TTE in subcostal views in addition to the standard TTE examination.
Prospective randomized comparison between endovascular procedures performed with iodinated contrast or carbon dioxide as intraarterial contrast.
The purpose of this study is to investigate the prevalence of abdominal aortic aneurysms (AAA) among male patients with transient ischemic attack (TIA) symptoms. Ethiology of AAA is known to be common with atherosclerotic arterial diseases (coronary artery disease, peripheral artery disease and carotid artery disease), so the hypothesis is that AAA should be more common among these TIA patients, thus making screening of these patients (for AAA) more cost-efficient. Study will be carried out as a prospective screening study. Data will be collected in North Karelia Central Hospital within one year. All male patients with TIA symptoms will be recruited for the study and screened for AAA with ultrasound.
X-ray computed tomography imaging (CT) is routinely used in follow-up after endovascular aneurysm repair (EVAR). Contrast-enhanced ultrasound (CEUS) has been shown to give accurate information about endoleak after EVAR. Benefits of CEUS over CT include less radiation exposure, avoidance of renal function deterioration due to repeated X-ray contrast agent application and decrease in the cost of EVAR follow-up. This study is designed to investigate if results from literature are reproducible in St Olavs Hospital in Trondheim (Norway), to gain experience with the technique and to introduce CEUS as an alternative for detection of endoleak in this hospital.
The study is aimed at investigating whether repair of endoleak type II can be improved by adding navigation technology. Can this technology increase precision by guiding the needle that punctures through the skin as used during the repair procedure? Can the procedure logistics be improved by using navigation technology instead of computed tomography (CT) guidance of the needle puncture? Parameters logged during the procedure: - was the needle placement successful? - number of needle punctures? - time used on guidance procedure - X-ray exposure dose
Delayed vasospasm (DCVS) is the most serious complication of aneurysmal subarachnoid hemorrhage (aSAH) perioperative period ,the incidence rate up to 30% to 90%, and often can cause severe brain ischemia or brain damage of delayed ischemic and even lead to cerebral infarction, to be the main factor of deadly and severe disability . (aSAH) perioperative delayed vasospasm (CVS) is the bottleneck to restrict the long-term effect. Since there is no standard clinical treatment programs, limiting the advantages and characteristics of traditional Chinese medicine to play.Guangdong Provincial Hospital of TCM is the province's Medical Center encephalopathy, treated 100 brain aneurysm patients each year, more than 80 times craniotomies and surgical interventions , with a rich source of patiengs to carry out the study. In this study, on the basis studies on hemorrhagic stroke of a yin and yang syndrome and comprehensive treatment programe of the State 1995,the 15th research , in accordance with characteristics of the pathophysiology and understanding of cause and pathogenesis in aSAH perioperative period , through expert advice and review of the literature, under the guidance of Liu Maocai who isChinese medicine practitioners of Guangdong province , from diagnosis, diagnosis and treatment,prescription drugs, and other aspects of efficacy evaluation, developmenting a standardized treatment program of delayed CVS after aSAH . To evaluate the efficacy of the standardized program by prospective, randomized,controlled clinical trial,improving the postoperative results, reducting significantly the mortality and morbidity patients with cerebral aneurysms.