Long-term Outcomes of Contemporary Coronary Revascularization by Percutaneous Coronary Intervention or Coronary Artery Bypass Grafting in Young Adults

Background: Current guidelines for choosing between revascularization modalities may not be appropriate for young patients. Objectives: To compare outcomes and guide treatment options for patients < 40 years of age, who underwent percutaneous coronary intervention (PCI) or coronary artery bypass grafting (CABG) between 2008 and 2018. Methods: Outcomes were compared for 183 consecutive patients aged < 40 years who underwent PCI or CABG between 2008 and 2018. Outcomes were compared as time to first event and as cumulative events for non -fatal outcomes. Results: Mean patient age was 36.3 years and 96% were male. Risk factors were similar for both groups. Drug eluting stents were implemented in 71% of PCI patients and total arterial revascularization in 74% of CABG patients. During a median follow-up of 6.5 years, 16 patients (8.6%) died. First cardiovascular events occurred in 35 (38.8%) of the PCI group vs. 29 (31.1%) of the CABG group (log rank P = 0.022), repeat events occurred in 96 vs. 51 (P < 0.01), respectively. After multivariate adjustment, CABG was associated with a significantly reduced risk for first adverse event (hazard ratio [HR] 0.305, P < 0.01) caused by a reduction in repeat revascularization. CABG was also associated with a reduction in overall repeat events (HR 0.293, P < 0.01). There was no difference in overall mortality between CABG and PCI. Conclusions: Young patients with coronary disease treated by CABG showed a reduction in the risk for non -fatal cardiac events. Mortality was similar with CABG and PCI.