VAD, or Ventricular Assist Device, is a mechanical pump designed to support the function of a weakened or failing heart. It is surgically implanted in the chest and helps to pump blood from the heart to the rest of the body. VADs are often used as a temporary solution for patients awaiting a heart transplant, or as a long-term treatment for those who are not eligible for a transplant. This life-saving technology has greatly improved the quality of life for individuals with heart failure, allowing them to continue living active and fulfilling lives.