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The University of Florida maintains a keen interest in the evolving field of
mechanical circulatory support. As the population continues to age and the
prevalence of heart failure continues to increase, this becomes a ubiquitous
problem in society. The rate of cardiac transplantation is limited by donor
heart availability. To appropriately support those patients that either are not
candidates for heart transplantation, or are too ill to endure the waiting
period for a donor heart, other alternatives must be available.
At the University of Florida, we have significant interest and experience in
the surgical management of heart failure. This can include surgical restoration
of the ventricular geometry in order to provide a more efficient pump mechanism.
We are also involved in the pioneering work of several devices to reduce the
dilation of the failing heart.
When these options fail, or are unlikely to be successful, then mechanical
alternatives must be utilized. This usually involves the placement of
ventricular assist devices. A ventricular assist device (VAD) is a mechanical
pump-type device that's surgically implanted. It helps augment the pumping of a
failing heart. These devices can be used to augment either one, or both
ventricles in the failing heart.
This device is sometimes called a "bridge to transplant." People
awaiting a heart transplant often must wait longer than their extreme illness
allows before a suitable heart becomes available. During this wait, the
patient's already-weakened heart may deteriorate and become unable to pump
enough blood to sustain life. A VAD can help a support the patient and "buy
time" until a heart becomes available.
We currently implant several types of VADs, each with its own specific
clinical indication. As this technology continues to evolve, more people will
turn to these mechanical support systems as a means of supporting many patients
who otherwise would not be able to receive heart transplants.
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