Evolution of Left Ventricular Ejection Fraction After Acute Myocardial Infarction Implications for Implantable Cardioverter-Defibrillator Eligibility

摘要: Background—Implantable cardioverter-defibrillator therapy improves survival in patients with reduced left ventricular ejection fraction (LVEF) after acute myocardial infarction (AMI). Although the risk of sudden cardiac death is highest first month AMI, there no benefit early implantable implantation, and optimal time frame has yet to be established. Thus, aim this study was investigate what proportion post-AMI had improved LV function such an extent that indication for longer present. Methods Results—Patients admitted AMI LVEF (≤40%) were eligible inclusion. Repeat echocardiographic examinations performed 5 days, 1 month, 3 months AMI. We prospectively included 100 31±5.8% At 1-month follow-up, 55% >35%. The main improvement occurred by month. mean difference L...