A Ventricular Assist Devices supports blood flow and heart function in people with weakened hearts

Ventricular Assist Devices
Ventricular Assist Devices

An electromechanical device known as Ventricular Assist Devices (VAD) is used to support cardiac circulation and can either partially or fully replace the function of a failing heart. A VAD pumps blood, but a pacemaker sends electrical impulses to the heart muscle, hence their respective roles in the body are different. Some VADs are for long-term use (months to years to perpetuity), often for patients with advanced heart failure. Some are for short-term use, typically for patients recovering from myocardial infarction (heart attack) and for patients recovering from cardiac surgery.

VADs can either help the left or right ventricles, or both ventricles, depending on its design (RVAD and LVAD) (BiVAD). The pulmonary arterial resistance, which controls the right ventricle's workload, and the type of underlying cardiac disease define the type of Ventricular Assist Devices that should be installed. The most common device used to assist a failing heart is a left ventricular assist device (LVAD), which is usually enough to allow the right side of the heart to benefit from the greatly increased blood flow. However, when pulmonary arterial resistance is high, a right ventricular assist device (RVAD) may be required in order to solve the cardiac circulation issue. A BiVAD is typically utilised in place of separate LVAD and RVAD when both are required.

The long-term VAD is typically used as a bridge to transplantation (BTT), keeping the patient alive, in generally good health, and able to wait outside of the hospital for a heart transplant. Additionally, there are "bridges" to candidacy, decision, and recovery. In other cases, destination therapy also employs VADs (DT). In this case, the patient will not have a heart transplant and will live the rest of his or her life with the Ventricular Assist Devices Market. VADs are different from artificial hearts, which are made to replace the patient's heart and typically need the patient's heart being removed.

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