IdeNtifying High riSk Patients Post Myocardial Infarction With REduced Left Ventricular Function Using External Loop Recorders (INSPIRE-ELR Study)

Patients must meet all of the below criteria to be eligible for the study: * Patients must provide written informed consent/data release consent to * participate in the study. * Acute Myocardial Infarction (STEMI or non-STEMI) documented within 10 days of onset, matching one of the following criteria: * Acute ST segment elevation greater than or equal to 0.1 mv on ECG in 2 or more leads or new LBBB, with symptoms of ischemia * In all other situations, including non ST segment elevation MI, at least one cardiac biomarker value \[preferably cardiac troponin (cTn)\] above the 99th percentile of a normal reference population (upper reference limit (URL)) AND with at least one of the following (1) new or presumed new ST-T changes (2) Symptoms or signs of Ischemia (3) Development of pathological Q waves in the ECG (4) Identification of an intracoronary thrombus by angiography * LVEF less than or equal to 35 percent as measured by echocardiography Simpsons method, biplane one day before or on the day of hospital discharge Exclusion Criteria * Patients who cannot be discharged from the hospital within14 days after index Myocardial Infarction event * Age less than 18 years * Psychologically incapacitated * Patient is pregnant, or is expecting to become pregnant during the course of the trial per Investigator discretion. * Patients contraindicated for NUVANT system * Comorbidities likely to limit survival to less than the minimal study duration (12 months) * Participation in an investigational study with known or suspected cardiac effect expected to confound the results of this study (e.g. stem cell trials, stent trials, cardiac intervention trials, drug trials) * Patients with an existing pacemaker or ICD implanted. * Patients that are dialysis dependent at discharge