کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5962436 | 1576124 | 2016 | 5 صفحه PDF | دانلود رایگان |
BackgroundFactors of restenosis after percutaneous coronary intervention (PCI) for chronic total coronary occlusion (CTO) have not been fully explored. In particular, although the last ACC/AHA guidelines on PCI suggest that a minimum diameter stenosis of 10% with an optimal goal of as close to 0% as possible should be the new benchmark for lesions treated by stenting, angiographic success of PCI for CTO remains in the literature most often defined as a < 30% residual diameter stenosis. Whether an optimized immediate post-PCI angiographic result (OAR) defined by a minimal diameter stenosis as close to 0% is associated with a lower restenosis rate in this subset of coronary lesions remains unknown.MethodsTherefore, we assessed by quantitative coronary analysis (QCA) both the immediate post-PCI and 6-month follow-up angiographic results of 170 successfully treated true CTO.ResultsPost-PCI QCA immediate residual diameter stenosis was < 30% in all 170 CTOs and OAR defined as a â¤Â 10% residual stenosis was achieved in 133 (78%). Global binary restenosis rate was 21% in the 170 lesions. Restenosis rates were 46% and 14% in the non-OAR group and in the OAR group, respectively (p < 0.0001). Multivariate analysis showed that a non-OAR, a younger age and a retrograde approach were independent factors of restenosis.ConclusionThus, an optimized immediate angiographic result with a minimal diameter stenosis as close to 0% as possible appears to be associated with a lower rate of restenosis after CTO PCI.
Journal: International Journal of Cardiology - Volume 224, 1 December 2016, Pages 343-347