Insights into the Global Total Occlusion Crossing Algorithm.

An algorithmic approach to chronic total occlusion (CTO) percutaneous coronary intervention has led to an increase in the success rate and safety of the procedure. The global CTO crossing algorithm is a consensus document that was developed by 121 expert operators from 50 countries and published during the COVID-19 pandemic. It provides standardisation while allowing flexibility in CTO crossing strategy selection, and can facilitate teaching of CTO percutaneous coronary intervention across various regions of the world. In this review, the 10 steps of the global CTO crossing algorithm are discussed in detail.