Survival benefit of primary prevention implantable cardioverter-defibrillator therapy after myocardial infarction: Does time to implant matter? A meta-analysis using patient-level data from 4 clinical trials

In this meta-analysis, there was scant evidence that the efficacy of primary prevention ICD therapy depends on time to implantation more than 40 days after MI. Similarly, there was no evidence that the risks of rehospitalizations or complications depend on time more than 40 days after MI.