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A ventricular assist device (VAD), also known as a heart pump, is a mechanical device that helps pump blood from the heart to the rest of your body.
A VAD can be implanted in the chest or worn outside the body. If it is implanted, surgery is done to place it in the chest area. The pump part of the VAD is placed in a small space in your upper abdomen. Batteries that power the pump are usually worn on a belt or pouch outside your body. After the VAD has been implanted, your doctor will make another small incision in your side to connect the electrical wires that power the device.
A VAD can help pump blood from the left side, right side, or both sides of your heart, depending on your type of heart failure.
A VAD helps pump blood when the heart is not able to pump enough blood on its own. It removes blood from your heart and pumps it to the rest of your body. This way, most of the blood that your heart would normally pump is pumped by the VAD instead. Most VADs have an automatic mode that adjusts to different levels of activity. For example, if you begin to walk, your VAD can increase how much blood it pumps.
A VAD can be used as a temporary or long-term treatment for severe heart failure. A VAD may be used for only a short time if a person's heart gets strong again and is able to pump blood well enough by itself. VADs are typically used to help people who are waiting for a heart transplant. In some cases, VADs can be used long-term along with other heart failure treatments like medicines.
VADs used before a heart transplant can help people live until they receive the transplant.
VADs used for long-term therapy may help lower the risk of death compared to medical treatment alone. And a VAD might help a person feel better and be able to do better with daily activities.
Risks from VADs include problems like stroke, excessive bleeding, infection, device malfunction, and blood clotting. These complications may need hospital care.
Most people with a VAD feel better and have a better quality of life. They can be active, drive, work, be social, and enjoy hobbies.
If you have a VAD, you will have a team of specialists who will help you. They will see you regularly at follow-up visits. They will teach you how to care for your VAD at home and how to prevent problems. Self-care that you might do at home includes checking the device and changing the dressing.
Other Works Consulted
- Givertz MM (2011). Ventricular assist devices: Important information for patients and families. Circulation, 124(12): e305–e311.
- Joyce D, et al. (2011). Surgical treatment of heart failure and mechanical ventricular support. In V Fuster et al., eds., Hurst’s The Heart, 13th ed., vol. 1, pp. 798–809. New York: McGraw-Hill.
- Mehra MR, Griffith BP (2012). Assisted circulation in the treatment of heart failure. In RO Bonow et al., eds., Braunwald's Heart Disease: A Textbook of Cardiovascular Medicine, 9th ed., vol. 1, pp. 617–626. Philadelphia: Saunders.
- Slaughter MS, et al. (2009). Advanced heart failure treated with continuous-flow left ventricular assist device. New England Journal of Medicine, 361(23): 2241–2251.
|Primary Medical Reviewer||Rakesh K. Pai, MD, FACC - Cardiology, Electrophysiology|
|Specialist Medical Reviewer||Stephen Fort, MD, MRCP, FRCPC - Interventional Cardiology|
|Last Revised||September 12, 2012|
Last Revised: September 12, 2012
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