Disparities in therapies for coronary artery disease with reduced left ventricular ejection fraction

Abstract

Revascularization through percutaneous coronary intervention (PCI) or coronary artery bypass grafting (CABG) is used to manage left ventricular systolic dysfunction (LVSD) due to coronary artery disease (CAD). This review provides an overview of coronary revascularization for CAD with reduced left ventricular ejection fraction (LVEF), focusing on disparities in management. CABG provides more complete revascularization, and lower long-term all-cause mortality and reintervention and MI rates compared to PCI in patients with LVSD and CAD. Consequently, CABG is recommended as the primary revascularization therapy for CAD with reduced LVEF, with PCI being reserved for patients who are high-risk or have unfavorable coronary anatomy. Although LVSD increases revascularization risk, differential outcomes can be attributed to patients’ biological, behavioral, and socioeconomic factors as well as health system deficiencies. Women and racially and/or ethnically minoritized patients often present with progressive disease and greater comorbidity, experience delays in diagnosis and treatment, and have higher morbidity and mortality rates post-revascularization. These disparities may be explained by biological differences compounded by social determinants of health. Patients with CAD with LVSD pose unique medical challenges, which may be further complicated by disparities in care. Increased representation of minoritized patients in cardiovascular trials is needed to elucidate these differences and their long-term impact.

Keywords

Coronary artery disease / left ventricular systolic dysfunction / heart failure / coronary artery bypass grafting / percutaneous coronary intervention / disparities

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