LVAD

特許 係属中 A ventricular assist device (VAD) is an electromechanical circulatory device that is used to partially or completely replace the function of a failing heart. The function of VADs differs from that of artificial cardiac pacemakers. Some VADs are intended for short term use, typically for patients recovering from heart attacks or heart surgery, while others are intended for long-term use (months to years and in some cases for life), typically for patients suffering from advanced congestive heart failure. LVADs are most commonly used, but when pulmonary arterial resistance is high, right ventricular assistance may become necessary. Long term VADs are normally used to keep patients alive with a good quality of life while they wait for a heart transplantation (known as a "bridge to transplantation"). However, LVADs are sometimes used as destination therapy, meaning they will never undergo heart transplant, and sometimes as a bridge to recovery.