Preemptive Lung Impedance-guided Therapy of Evolving Acute Heart Failure in Acute Myocardial Infarction Patients

It is well known that 20-25% of patients hospitalized for acute myocardial infarction will develop acute heart failure during their hospitalization. Currently, the investigators have no reliable parameter for prediction of evolving acute heart failure in such a group of patients. As a result, the investigators have no way of preventing acute heart failure. Treatment of these patients only begins after appearance of clinical signs of acute heart failure. Lung impedance monitoring may be a good non-invasive parameter for prediction of evolving acute heart failure. This study will attempt to address whether preemptive lung impedence-guided therapy may prevent the development of overt acute heart failure and improve their clinical outcome.