Why the study?
Despite high procedural success rates and confirmed symptom relief, coronary chronic total occlusion recanalisation remains grossly underutilised.
CTO recanalisation is highly successful and improves symptoms and quality of life, yet remains underutilised.
High success supports symptom-driven CTO PCI in selected patients; leaves open prognostic benefit beyond existing RCTs.
Percutaneous treatment of coronary chronic total occlusions (CTO) has advanced greatly since its advent in the late 1970s through the development of dedicated wires and microcatheters, the improved skills of highly experienced operators and the adoption of new sophisticated strategies to guide procedural planning. The contemporary procedural success rate is 80-90% with a reduction in complications. Although there has been no improvement in prognosis in randomised trials to date, they, and other controlled registries of thousands of patients, confirm the pivotal role of CTO recanalisation in the treatment of angina and dyspnoea and an improvement in quality of life. Despite this evidence, CTO recanalisation is grossly underutilised. This review reports a detailed overview of the history, indications and treatment strategies for CTO recanalisation and hopes to increase interest among new, and especially young, operators in this demanding, rapidly evolving field of interventional cardiology.
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Mario et al. (2022) studied this question.
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