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

ABSTRACT:

Background

Calcified nodules (CN) have been reported as being associated with stent failure including in-stent restenosis (ISR). However, there is no systematic study of this condition.

Aims

We aimed to clarify the prevalence, predictors, and midterm results of ISR lesions with CN.

Methods

We examined the clinical characteristics of 651 ISR lesions in patients who underwent percutaneous coronary intervention (PCI) with optical coherence tomography (OCT) between October 2008 and July 2016, and their 6- to 8-month follow-up angiography results. CN was defined as a high backscattering mass with small nodular calcium depositions which protruded into the vessel lumen.

Results

Thirty-two ISR lesions (4.9%) had CN. Multivariable analysis showed that calcified lesion (

SUBMITTER: Tada T 

PROVIDER: S-EPMC9743251 | biostudies-literature | 2022 Mar

REPOSITORIES: biostudies-literature