Acute ST-elevation myocardial infarction (STEMI) in a young woman with unknown mitral stenosis and atrial fibrillation: Case report.

Introduction And Importance: Chronic rheumatic heart disease is the most common cause of mitral stenosis. It remains a major public health problem. In almost half of the cases, paroxysmal or chronic atrial fibrillation occurs during the evolution of mitral stenosis, thereby exposing to an increased risk of thrombo-embolic events.