Occlusion patterns, strategies and procedural outcomes of percutaneous coronary intervention for in-stent chronic total occlusion.

ABSTRACT:

Background

In-stent chronic total occlusion (CTO) presents various occlusion patterns, which complicate percutaneous coronary intervention (PCI).

Aims

The aim of the study was to investigate the initial outcome and strategy of PCI for in-stent CTO according to the angiographic occlusion patterns.

Methods

This study assessed 791 in-stent CTOs from the Japanese CTO-PCI Expert Registry from 2015 to 2018. They were divided into four patterns: pattern A (n=419), CTO within the stent segment; pattern B (n=196), CTO beyond the distal edge; pattern C (n=85), CTO beyond the proximal edge; and pattern D (n=69) CTO beyond both the proximal and distal edges.

Results

There were significant differences in the technical success rates (96.2%, 86.2%, 92.9%, and 75.4% for patter

SUBMITTER: Sekiguchi M 

PROVIDER: S-EPMC9724848 | biostudies-literature | 2021 Oct

REPOSITORIES: biostudies-literature