Surgical Versus Percutaneous Revascularization in Patients With Reduced Left Ventricular Function (STICH 3.0-NL)

Overview

This randomized multicenter trial compares coronary artery bypass grafting (CABG) with percutaneous coronary intervention (PCI) in 358 patients with ischemic left ventricular dysfunction and multivessel coronary disease. The study evaluates differences in survival, major cardiovascular events, and quality of life over 4 years, and contributes to the international STICH 3.0 collaboration assessing long-term outcomes.

Patients with ischemic left ventricular systolic dysfunction (iLVSD) and multivessel coronary artery disease (CAD) have a poor prognosis. Coronary artery bypass grafting (CABG) has been shown to improve long-term survival in this population compared to medical therapy alone. However, CABG carries higher short-term risks, leading to underutilization in older and comorbid patients. In contrast, percutaneous coronary intervention (PCI) is frequently performed due to perceived lower procedural risk, despite limited evidence supporting its benefit in patients with LV dysfunction. Previous studies comparing PCI with medical therapy excluded patients with clear indications for revascularization, such as those with significant angina or recent acute coronary syndrome, leaving uncertainty about the optimal treatment strategy. The STICH 3.0-NL trial is a prospective, randomized, controlled, open-label, multicenter study designed to compare CABG and PCI in patients with iLVSD (LVEF \<40%) and multivessel CAD who are candidates for coronary revascularization. A total of 358 patients will be enrolled and randomized in a 1:1 ratio to undergo CABG or PCI, aiming for full revascularization. The primary endpoint is a hierarchical composite of all-cause mortality, recurrent major adverse cardiovascular events (MACE: non-procedural myocardial infarction, stroke, or unplanned revascularization), and recurrent hospitalizations for heart failure at 4 years. Secondary endpoints include the individual components of the primary endpoint, cardiovascular mortality, periprocedural myocardial infarction, target vessel and lesion revascularization, changes in quality of life (Seattle Angina Questionnaire and KCCQ), and cost-effectiveness expressed as QALY and ICER. The STICH 3.0-NL trial will contribute approximately 10% of the total cohort to the international STICH 3.0 collaboration, enabling long-term analyses of all-cause mortality at 5 and 10 years and providing critical evidence to guide revascularization strategies in patients with ischemic cardiomyopathy.