Cardiac Medical Equipment: What is the Difference between a C-Pulse and an LVAD?
Patients who have been diagnosed with severe heart failure will often choose to have a left ventricular assist device (LVAD) implanted. These devices work well to keep the heart circulating blood throughout the body. On the other hand, a C-Pulse device can perform much of the same task without coming into contact with the blood. Rather than being an actual pump, the C-Pulse applies pressure to part of the aorta and promotes the circulation of blood without actually coming into contact with it.
Another advantage of the C-Pulse device is its ability to be disconnected by the patient. An LVAD is a permanent “fixture” in the heart and cannot be turned off. However, the C-Pulse is not exempt from its own problems. Because the cuff contracts about 70 times in a minute, this medical equipment could have long-term effects on the aorta or simply wear itself out. Another issue is that since the C-Pulse is only partially implanted, it is able to receive power and compressed air through a tube that is tunneled from the aorta to the abdomen under the skin. There, it connects to another tube that leads to an 8 lb. battery-pack and controller, which can be cumbersome.
LVADs also have an external pack, which means that neither device is very popular with patients, but the tube exposure of the C-Pulse medical equipment means a patient could be vulnerable to infection. What the C-Pulse avoids by not coming into contact with blood, it makes up for in patient infection risk from the tube exposure. As a result, many patients who use the C-Pulse device spend a lot of time swabbing and sterilizing the area where the tube extends from the abdomen. Still, the less invasive nature of the C-Pulse makes it more desirable for most patients than an implanted LVAD, and less intrusive on their lifestyle.






