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AAA clinical trials

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NCT ID: NCT04080557 Completed - Surgery Clinical Trials

Abdominal Aortic Aneurysm Patients Remain at Risk for Delirium on the Surgical Ward After Intensive Care Unit Dismissal

Start date: November 1, 2018
Phase:
Study type: Observational

The incidence of delirium following open abdominal aortic aneurysm (AAA) surgery is significant, with incidence rates ranging from 12 to 33%. The occurrence of delirium on the surgical ward after intensive care unit (ICU) dismissal in AAA patients remains unclear. Differences in outcomes between a delirium on the ICU and a delirium on the surgical ward have not been previously investigated. Delirium is a frequent complication in patients who underwent open AAA surgery. This study demonstrated that patients on the surgical ward remain at risk for developing a delirium after ICU dismissal. Physicians should therefore maintain a high level of awareness for delirium in AAA patients who return to the surgical ward after ICU dismissal. This simultaneously emphasises the necessity of delirium preventive measures and early recognition on the surgical ward in order to improve clinical outcomes.

NCT ID: NCT03762525 Completed - Angiography Clinical Trials

Iliac Branch Device Movement During Cardiac Cycle (IBD-dynamics)

Start date: October 5, 2016
Phase: N/A
Study type: Interventional

The incidence of isolated common iliac artery (CIA) aneurysms is low, but in combination with an abdominal aortic aneurysm (AAA) they are found in approximately 20-40% of cases. Basically, two different endovascular strategies can be applied to treat a CIA aneurysm with, including 1. the coverage and 2. the preservation of blood flow to the internal iliac artery (IIA). Coil and coverage of the IIA is related to ischemic complications, including buttock claudication, erectile dysfunction and the more severe spinal and colonic ischemia. Iliac branched devices (IBD) have been developed to exclude CIA aneurysms preserving the IIA and currently three alternatives are on the market. Clinical results of these devices are promising but loss of patency is not uncommon. The major difference between the two devices is the IIA component. The Cook IBD uses a -non-dedicated IIA component, while in the GORE® EXCLUDER® Iliac Branch Endoprosthesis (Gore IBE device) a dedicated self expanding stent is used. Stresses and forces exerted onto the endograft by aortic pulsatility may have an effect on the durability and functioning of the endograft. Intermittent hinchpoints could also have an effect on stent integrity and stenosis. By evaluating endograft movement during the cardiac cycle (ECG-gated CTA) it is possible to assess the stress and force exerted onto the endograft. This might help gain insight into mechanisms underlying potential endograft failure, and aid procedural planning and the development of future devices with long-term durability. The choice for device is not part of this study.