Ventricular Assist Device
Definition
A ventricular assist device (VAD) is a battery-operated mechanical system consisting of a blood pump and a control unit used for temporary support of blood circulation. The VAD decreases the workload of the heart while maintaining adequate blood flow and blood pressure.
Purpose
A VAD is a temporary life-sustaining device. VADs can replace the left ventricle (LVAD), the right ventricle (RVAD), or both ventricles (BIVAD). They are used when the heart muscle is damaged and needs to rest in order to heal, or when blood flow from the heart is inadequate. In November 2002, the Food and Drug Administration (FDA) approved the use of one type of LVAD as a form of permanent treatment for patients who are ineligible for a heart transplant. VADs can also be used as a bridge in patients...
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