Ventricle Assist Device (VAD) is a medical device used to support the mechanical function of the heart in individuals suffering from severe heart failure. Specifically, it is designed to assist and augment the pumping capacity of the ventricles, the two lower chambers of the heart responsible for pumping oxygenated blood to the body's tissues.
The VAD consists of a pump connected to the ventricles via inflow and outflow cannulae. It is typically implanted surgically, either temporarily or permanently, depending on the patient's specific needs and condition. The device works by drawing blood from the weakened ventricle(s) into the pump through the inflow cannula. The pump then propels the blood forward, transferring it through the outflow cannula into the arteries, ensuring adequate blood flow to the body's organs and tissues.
VADs are particularly beneficial for patients awaiting heart transplantation, as they can help sustain their life until a suitable donor heart becomes available. Additionally, VADs can also be used as a long-term therapy for patients ineligible for transplantation. The device can significantly improve their quality of life by relieving symptoms associated with heart failure, such as fatigue, shortness of breath, and fluid retention.
VADs typically require close monitoring by healthcare professionals to ensure proper functioning and prevent potential complications, such as infections, blood clots, or device malfunction. However, they have proved to be a transformative medical intervention, saving countless lives and providing hope for those with end-stage heart failure.
