Side-branch occlusion after rotational atherectomy of in-stent restenosis: Incidence, predictors, and clinical significance

Goo Yeong Cho, Cheol Whan Lee, Myeong Ki Hong, Jae Joong Kim, Seong Wook Park, Seung Jung Park

Research output: Contribution to journalArticlepeer-review

15 Citations (Scopus)

Abstract

We evaluated the incidence, predictors, and clinical significance of side-branch occlusion (SBO) after rotational atherectomy (RA) for treatment of in-stent restenosis (ISR) and compared it with those of native coronary artery (NC). RA was performed in 64 patients with 34 ISR (42 side branches) and 30 NC (40 side branches). SBO occurred 14% after RA in ISR group compared with 0% in NC group (P < 0.05), and 33% after adjunctive balloon inflation in ISR group compared with 2.5% in NC group (P < 0.01). Non-Q myocardial infarction developed in seven patients in ISR group and four patients in NC group (P = NS). The presence of significant side-branch (SB) ostial disease (OR = 4.7, P < 0.05) and ISR lesions (OR = 15.5, P < 0.05) were the only independent predictors of SBO by multivariate analysis. The incidence of SBO is higher after RA of ISR than RA of NC and may be associated with an increased risk of non-Q myocardial infarction. (C) 2000 Wiley-Liss, Inc.

Original languageEnglish
Pages (from-to)406-410
Number of pages5
JournalCatheterization and Cardiovascular Interventions
Volume50
Issue number4
DOIs
Publication statusPublished - 2000

All Science Journal Classification (ASJC) codes

  • Radiology Nuclear Medicine and imaging
  • Cardiology and Cardiovascular Medicine

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