Abstract

Revascularization of the myocardium in the case of chronic total occlusion (CTO) has become algorithmic and effective due to the rapid development in the field. CTO percutaneous coronary intervention (PCI),
which initially did not yield satisfactory results, has been improved through investment in new technologies and techniques that have raised procedural success rates. Scoring systems designed for CTO PCI allow healthcare institutions and physicians to evaluate the ability of both the institution and the operator to successfully perform the procedure. The use of scoring systems in CTO revascularization is recommended because patients with higher J-CTO scores should be directed to centres that can cover all the steps in the algorithmic approach – from antegrade wiring to retrograde reentry.