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Abdominal Aneurysm clinical trials

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NCT ID: NCT01772537 Terminated - Abdominal Aneurysm Clinical Trials

The Effects of Anesthesia on Patients Undergoing Surgery for Repair of a Thoracoabdominal Aneurysm.

Start date: May 2012
Phase: N/A
Study type: Interventional

Alzheimer's disease represents a growing public health problem in developed countries. Although the pathogenesis is not clearly defined, accumulation of extracellular amyloid, neurofibrillary tangles and neuronal loss are the hallmarks of Alzheimer's disease. The effect of anesthetic agents on changes in these proteins in humans is not well characterized, but in-vitro evidence suggests that anesthetic agents can accelerate potential pathogenic mechanisms, such as increasing amyloid formation or rates of apoptosis in cultured cells and increasing amyloid levels in mice. Human data on the effect of anesthetic agents on amyloid and tau proteins is limited to a small series of 11 patients and showed a significant increase in tau levels after exposure to anesthetics. In this study we propose to measure CSF and serum biomarkers in a population of patients with normal CSF dynamics, who are undergoing surgery for repair of a thoracoabdominal aneurysm. We will also obtain preliminary data on whether changes in CSF levels of these proteins are associated with postoperative delirium or cognitive change.

NCT ID: NCT00604552 Terminated - Abdominal Aneurysm Clinical Trials

AneuRx Post Market Study in the Treatment of AAA

Start date: July 2003
Phase: N/A
Study type: Interventional

The aorta is a large blood vessel that carries blood away from the heart to the organs in the rest of the body. An aneurysm is a weakening in the artery wall that will become a bulge in the aorta. If left untreated, this bulge may continue to grow larger and may rupture (break open) with fatal consequences. Abdominal aortic aneurysm (AAA) is a life-threatening lesion that has been treated in recent year via endovascular repair. The purpose of this study is to monitor the long term performance of the AneuRx Stent Graft Systems.