VAD

VAD may refer to:

• Vertebral artery dissection, the development of a flap-like tear in the vertebral artery
• Ventricular assist device, a mechanical circulatory device used to replace the function of a failing heart
• Vitamin A deficiency, a lack of vitamin A in humans
• Voice activity detection, a technique in which the presence or absence of human speech is detected
• Voice-Activated Dialling, the use of speech recognition to identify the destination for a telephone call
• Voluntary Aid Detachment, a voluntary organisation providing field nursing services in the British Empire
• Vincristine, Adriamycin (doxorubicin), Dexamethasone; a chemotherapy regimen used for multiple myeloma

See also Vad (disambiguation).