 Each patient will undergo echocardiographic assessment with a standard ultrasound machine equipped with a 3.5 MHz transducer and capable of digital image storage. All echocardiograms will be performed on an ultrasound machine at the bedside, capable of two dimensional echocardiography with strain imaging using GE Vivid 7machine, and three dimensional echocardiography using the GE Vivid 7 machine or Phillips ultrasound machine. The reason for the broad range of study periods is to allow flexibility of performing echocardiography to fit into the patients treatment plan in the Heart Failure Intensive Care Unit. Our experience in conducting this kind of study in the Heart Failure Intensive Care Unit has led us to believe that having a range of times is often helpful. Patients admitted overnight or in the weekends, without compromising the objectives of the study. Since the objective of the study is to determine the role of serial echocardiographic parameters with or without hemodynamic data in predicting the need for more invasive interventions or correlating with treatment responses to infusions, this design is close to real-world logistics and will unlikely affect study results. 