This report presents a systematic review of chronic stable angina, a clinical manifestation of myocardial ischemia often linked to atherosclerotic coronary stenosis. The report explores various treatment options, including medical therapy with drugs like ACE inhibitors, beta-blockers, and nitrates, as well as revascularization strategies such as percutaneous coronary intervention (PCI) and coronary artery bypass grafting (CABG). The review analyzes the outcomes of clinical trials, including randomized controlled trials (RCTs), comparing PCI and CABG, and discusses the impact of these interventions on patient outcomes, including revascularization rates, major adverse cardiovascular and cerebrovascular events (MACCE), and overall survival, especially in patients with diabetes. The report highlights the importance of considering factors like the severity of coronary artery disease, the presence of multivessel disease, and the overall health of the patient when deciding between PCI and CABG. The report also presents the PRISMA flow chart and figures to support the findings and conclusion.