A major artery supplying blood to your heart is severely blocked. For years, the gold standard treatment has been coronary artery bypass grafting (CABG), a major open-heart surgery. The less invasive alternative is percutaneous coronary intervention (PCI), where doctors thread a stent through a blood vessel to prop the artery open. The big, lingering question has been: which one helps people live longer?
A decade-long study followed over 1,200 patients across Europe who had this specific, serious blockage. All were carefully selected by a team of heart specialists as being suitable candidates for either procedure. The researchers then randomly assigned them to get either the stent procedure or the bypass surgery and tracked them for 10 years.
The key finding was clear: there was no significant difference in the chance of dying from any cause over that decade. About a quarter of patients in each group had passed away after 10 years, with the numbers being nearly identical. This result comes from a robust randomized trial, which is the best type of study to compare treatments.
It's important to understand what this study does and doesn't tell us. The patients were carefully chosen—they weren't the highest-risk cases, and they didn't have other complex heart blockages. The trial was also 'open-label,' meaning everyone knew which treatment they got, which can sometimes influence results. Most notably, the provided results only tell us about survival; we don't have information from this summary on heart attacks, repeat procedures, strokes, or how patients felt day-to-day after their treatment.