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- W108069478 abstract "The histological appearance of stenosis in de novo saphenous venous grafts (DNSVG) consists of diffuse atherosclerosis that contains blood elements, necrotic debris and limited fibrocollagenous tissue. The friable nature of these lesions complicates percutaneous intervention (PCI) procedures. On the other hand, in-stent restenosis (ISR) of SVG is due primarily to atherosclerotic plaque or fibromuscular hyperplasia, with thrombus formation playing a secondary role. The purpose of this study is to compare the results of PCI in these two types of SVG lesions.We reviewed our institutional interventional database from March 1996 through February 2000 and identified all consecutive patients who underwent PCI of at least one SVG. One hundred and ten patients were identified: 89 undergoing DNSVG intervention and 21 patients with ISR lesions.Acute coronary syndromes, degenerated and thrombus-containing lesions were more common in the DNSVG group. Slow-, no-reflow complicated 20% of the DNSVG lesions compared to none of the ISR lesions (p = 0.02). Post-procedural myocardial infarction was higher in the DNSVG group (13.5% versus 0%; p = 0.1) and correlated significantly with the occurrence of slow-, no-reflow (r = 0.43; p = 0.0001). Utilizing statistical modeling to adjust for baseline differences between the groups, ISR lesions were associated with a low risk of procedural complications (r = 0.22; p = 0.03).This study demonstrates that in this relatively high-risk population, PCI is safer in ISR lesions than in de novo SVG lesions." @default.
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- W108069478 date "2001-06-01" @default.
- W108069478 modified "2023-10-16" @default.
- W108069478 title "Percutaneous intervention in saphenous venous grafts: in-stent restenosis lesions are safer than de novo lesions." @default.
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