 Mechanical support can be divided into the following categories:Short-term (<30 days) mechanical support devices1. Extracorporeal membrane oxygenation (ECMO)2. Centrifugal ventricular assist devices (VADs)3. MiscellaneousLong-term (>30 days) mechanical support devices1. Pulsatile types2. Rotary/axial types3. Miscellaneous