Prevalence, predictors, and outcomes of in-stent restenosis with calcified nodules.

Background null Calcified nodules (CN) has been reported to be associated with stent failure including in-stent restenosis (ISR). However, there is no systematic study of this condition. null Aims null We aimed to clarify the prevalence, predictors, and midterm results of ISR lesions with CN. null Methods null We examined the clinical characteristics of 651 ISR lesions which underwent percutaneous coronary intervention (PCI) with optical...