Guideline-Directed Medical Therapy for Elderly Patients With Acute Myocardial Infarction Who Undergo Percutaneous Coronary Intervention ― Insights From a Retrospective Observational Study ―

Background: The efficacy of guideline-directed medical therapy (GDMT) in the elderly remains unclear. This study evaluated the impact of GDMT (aspirin or a P2Y12inhibitor, angiotensin-converting enzyme inhibitor or angiotensin receptor blocker, β-blocker, and statin) at discharge on long-term mortality in elderly patients with acute myocardial infarction (AMI) who had undergone percutaneous coronary intervention (PCI).