Thomas W Umscheid

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PURPOSE To evaluate the efficiency of totally percutaneous endovascular aortic aneurysm repair in a large cohort of patients and to define risk factors for failure with a 10-F vascular closure system. METHODS A prospective study examined the feasibility and safety of percutaneous femoral artery closure with a single Prostar XL 10-F vascular closure device(More)
BACKGROUND Local and regional anesthesia was used in endovascular aortic aneurysm repair (EVAR) shortly after its introduction, and the feasibility has been documented several times. Nevertheless, locoregional anesthesia has not become accepted on a large scale, probably owing to a traditional surgical attitude preferring general anesthesia. This study(More)
There is still controversy as to which surgical method is the most suitable for repair of abdominal aortic aneurysm with concomitant horseshoe kidney (AAA-HSK). We report three cases of AAA-HSK treated with endovascular aneurysm repair. In one of these patients we sacrificed the accessory renal artery by applying coils before the operation. Renal(More)
BACKGROUND The development of newer-generation endografts for the endovascular treatment of abdominal aortic aneurysms has resulted in considerable improvements in clinical performance. However, long-term outcome data are still scarce. To assess long-term clinical and radiographic outcomes after use of the Talent stent graft, a retrospective analysis was(More)
OBJECTIVE The objective of the current study was to share a 6-year experience with the iliac bifurcation device (IBD) and determine its safety and effectiveness in patients with common iliac artery aneurysms. METHODS Between 2001 and 2006, 46 patients were prospectively enrolled in a single institution study on the IBD. Indications included unilateral or(More)
PURPOSE To compare anesthesia techniques in high-risk versus low-risk patients treated with endovascular aortic aneurysm repair (EVAR) with respect to outcomes. METHODS From July 1997 to August 2004, 5557 patients were enrolled in the EUROSTAR registry by 164 centers. Low-risk and high-risk patients were each divided into 3 groups according to anesthesia(More)
PURPOSE To present a 7-year single-center clinical experience with fenestrated endografts and side branches. METHODS Between April 1999 and August 2006, 63 patients (57 men; mean age 70.5+/-11.6 years, range 25-89) received custom-designed Zenith fenestrated endoprostheses for a variety of aneurysms (59 abdominal, 1 thoracoabdominal, and 3 thoracic). They(More)
Extracellular RNA (exRNA) has been characterized as a molecular alarm signal upon cellular stress or tissue injury and to exert biological functions as a proinflammatory, prothrombotic, and vessel permeability-regulating factor. In this study, we investigated the contribution of exRNA and its antagonist RNase1 in a chronic inflammatory joint disease,(More)
PURPOSE To report a rare case of hemangiosarcoma after endovascular aneurysm repair (EVAR). CASE REPORT A 50-year-old man with Klinefelter syndrome presented 5 years after EVAR with a mass at the infrarenal aorta outside the stent-graft. Radiomorphologic and clinical signs were misleading because there had been evidence of an inflammatory process for more(More)
PURPOSE To investigate the use of fenestration and branch artery stenting during endovascular stent-graft repair of para-anastomotic aneurysms (PAA). METHODS A retrospective review was conducted of 9 patients (all men; mean age 71 years, range 60-80) who received custom-designed fenestrated endoprostheses for PAA repair. Eight tubular fenestrated devices(More)