CORONARY ARTERY STENOSIS: IS REVASCULARIZATION ALWAYS REASONABLE?

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Aim.To determine factors associated with percutaneous coronary intervention (PCI) and/ or coronary artery bypass grafting (CABG) in patients with stable coronary artery disease (CAD), who have no indications for myocardial revascularization.Methods.The data were collected using the Federal CAD Registry. Medical data of 1522 patients with CAD were reviewed. Of them, 326 patients (median age – 54.7±8.7 years; 73.0% – males) who had no indications for PCI and CABG according to 2013 ESC guidelines on stable CAD (ESC 2014) were analyzed.Results.216 patients out of 326 (66%) patients received medical treatment. The rest 110 patients (34%) without any recommended indications underwent myocardial revascularization. Discriminate analysis determined coronary artery stenosis of >70% was the only factor reliably associated with the decision to perform myocardial revascularization in the absence of any indications (р<0.001). Almost 93% of the interventions were performed in asymptomatic patients or patients with mild angina.Conclusion. Patients with stable CAD without any objective indications for coronary intervention may be unreasonably referred to myocardial revascularization (commonly PCI) due to coronary artery stenosis >70% regardless of whether they have or do not have angina symptoms.