Ventricular assist device
Ventricular Assist Device (VAD)[edit | edit source]
Introduction[edit | edit source]
A Ventricular Assist Device (VAD) is an electromechanical device designed to support cardiac circulation. It is used to either partially or completely replace the function of a failing heart, differing significantly from an artificial cardiac pacemaker which delivers electrical impulses to the heart muscle rather than pumping blood.
Types of VADs[edit | edit source]
VADs can be classified based on their function and duration of use.
Short-Term VADs[edit | edit source]
Short-term VADs are typically used for patients recovering from heart attacks or cardiac surgery. These devices provide temporary support during the healing process.
Long-Term VADs[edit | edit source]
Long-term VADs are used for patients with advanced heart failure, potentially running for months to years. In some cases, these devices are used as a permanent solution, especially for patients awaiting heart transplants.
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Function and Mechanism[edit | edit source]
VADs function by taking over the pumping action of the heart. They are connected to the heart's ventricles and the aorta, assisting or completely taking over the pumping function of the ventricles.
Indications and Usage[edit | edit source]
VADs are indicated for severe heart failure cases where conventional treatments have failed. This includes patients awaiting heart transplants or those who are ineligible for transplantation.
Risks and Complications[edit | edit source]
The use of a VAD carries certain risks, such as blood clots, infection, and device malfunction. Ongoing medical supervision is required to manage these risks.
Advancements in VAD Technology[edit | edit source]
Recent advancements in VAD technology have focused on making the devices smaller, more efficient, and less prone to complications.
Patient Quality of Life[edit | edit source]
The use of VADs can significantly improve the quality of life for patients with severe heart failure, allowing them more mobility and a better overall quality of life.
See Also[edit | edit source]
References[edit | edit source]
External Links[edit | edit source]
- Mayo Clinic - Ventricular Assist Device
- National Center for Biotechnology Information - Ventricular Assist Devices
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