Acute mitral regurgitation (MR) is not a rare finding following acute myocardial infarction (AMI). It may develop due to papillary muscle rupture (primary MR) or due to rapid remodeling of the infarcted areas leading to geometric changes and leaflets tethering (secondary or functional MR). The clinical presentation can be catastrophic, with pulmonary edema and refractory cardiogenic shock. Acute MR is a potentially life-threatening complication and is linked to worse clinical outcomes. Until recently, medical treatment or mitral valve surgery were the only established treatment options for these patients. However, there is growing evidence for the benefits of safe and effective trans-catheter interventions in this condition, specifically transcatheter edge-to-edge repair (TEER). We aimed to review the current role of TEER in post-MI acute MR patients, focusing on different etiologies.
Keywords: cardiogenic shock; mitral regurgitation; myocardial infarction; papillary muscle rupture; trans-catheter edge-to-edge repair.