Limitations
This study was prone to limitations. This study was a retrospective review of patients who received unplanned de novo MCS after cardiac surgery, and thus was not randomized. As such, direct comparisons of MCS strategies are not possible within the limits of this study. Mechanical support may be initiated for various reasons, and the choice of bridging support is often tailored to the individual needs of the patient or preferences of the surgeon. As a result, selection bias likely exists. The scope of this study is to report upon a large experience of MCS support following cardiac surgery and to evaluate both early and longitudinal outcomes, and to not advocate the usage of one form of support over another.