The impact of coronary perforation in percutaneous interventions involving the left main stem coronary artery in the United Kingdom 2007–2014: Insights from the British Cardiovascular Intervention Society database

Background Percutaneous coronary intervention (PCI) is increasingly utilized for treatment of coronary disease involving the unprotected left main stem (ULMS). However, no studies to date have examined the outcomes of such interventions when complicated by coronary perforation (CP). Methods Using the British Cardiovascular Intervention society (BCIS) database, data were analyzed on all ULMS‐PCI procedures complicated by CP in England and Wales between 2007 and 2014. Multivariate logistic regressions were used to identify predictors of ULMS CP and to evaluate the association between this complication and outcomes. Results During 10,373 ULMS‐PCI procedures, CP occurred more frequently than in non‐ULMS‐PCI (0.9 vs. 0.4%, p