Interventional procedures in patients with acute forms of coronary artery disease after surgical revascularization

Abstract

Aim. To evaluate the efficacy of percutaneous coronary interventions (PCI) performed for
unstable forms of coronary artery disease (CAD) in patients with a history of coronary artery
bypass grafting (CABG).
Materials and Methods: The outcomes of PCI were analyzed in 52 patients admitted with
acute coronary syndrome (ACS) after a history of CABG. The average age of patients was
51.2±6.4 years. A total of 75 drug-eluting stents (Resolute Integrity, n=50; Ultimaster, n=25)
were implanted. Stenting of aortocoronary grafts was performed in 22 cases (42.3%), while
native coronary arteries were treated in 30 cases (57.7%).
Results: PCI resulted in positive clinical and angiographic outcomes in all patients. Signs of
myocardial ischemia were reduced or completely resolved. The left ventricular ejection fra
ction (LVEF) increased from 48.5±3.2% to 53.1±5.5% on average. Hypokinetic zones were
reduced in 6 patients (11.5%), myocardial contractility was fully restored in 20 patients
(38.5%), and previously akinetic zones regained kinetics in 3 cases (5.8%). The left ventricu
lar end-diastolic volume (LVEDV) decreased from 192.6±10.5 mL to 178.2±13.5 mL