Post-myocardial infarction ventricular septal defects: incidence and treatment trends during and after the COVID-19 pandemic.

Ventricular septal defect (VSD) is a serious complication of myocardial infarction (MI), with its global incidence significantly reduced in recent years due to advances in coronary reperfusion techniques. However, during the COVID-19 pandemic, there was an unexpected rise in the incidence of post-MI VSD, likely driven by delays in seeking treatment. This study retrospectively analyzed 10 cases of post-MI VSD treated at our hospitals from March 2018 to August 2023, comparing incidence rates across pre-pandemic, pandemic, and post-pandemic periods.