Mechanical Ventricular Assist Device(VAD) can be used in various patient groups including end stage heart disease waiting for heart transplantation, postcardiotomy shock, or acutely deteriorating patients. The auteome of the VAD application is poor and the overall survival rate is less than 30%. We had applied intraaortic balloon pump and centrifugal type Left Ventricular Assist Device(LVAD) in a patient who had shown no left ventricular wall motion and shock state after mitral valve replacement due to myocardial stunning. The LVAD was successfully weaned after 16 hours 55 minutes. The patient recovered from postcardiotomy shock without any complications, and was discharged on the 21st. postoperative day.