 Study Design This is a single-center, prospective cohort study. The project will be carried out at the Main Campus of the Cleveland Clinic Foundation. Comprehensive transthoracic echocardiography will be performed in the Heart Failure Intensive Care Unit at the Cleveland Clinic Foundation. This is an eight bed intensive care unit dedicated to treating patients with acute clinical issues related to heart failure and is staffed by heart failure specialists, medical officers and nurses specializing in heart failure management. 