BECN1 and cardiac arrhythmia: In this study, the correlation analysis between autophagy and VFT after MI showed that there was a significant negative correlation between cardiomyocyte autophagy-related proteins Beclin1, LC3II/LC3I, and VFT, and a significant positive correlation between P62 expression and VFT, suggesting that the overactivation of myocardial autophagy after MI was related to the increased risk of arrhythmia.