In‐stent chronic total occlusion angioplasty in the LATAM‐CTO registry

Objectives To inform about contemporary PCI practice of in‐stent (IS) chronic total occlusions (CTO) from a large international registry in Latin America. Background IS‐CTO represent a distinctive challenge for PCI, but literature is limited and restricted to high‐resource regions of the world. Methods Patients undergoing CTO PCI enrolled in the LATAM CTO registry from 42 centers in eight countries were included. We analyzed demographics, angiographic, procedure technique, success and postprocedural outcomes between IS‐CTO and non‐IS‐CTO PCI. Results From 1,565 patients IS‐CTO was present in 181 patients (11.5%). IS‐CTO patients had higher prevalence of diabetes and hypertension than patients without IS‐CTO. IS‐CTOs had less calcification (32.5 vs. 46.7%, p