The heart device was not audible to a reporter who stood at the base of his bed.
In addition, heart devices are typically not examined after a patient dies to see if its possible failure might have contributed to the death.
And some people will benefit from artificial heart devices.
The group with the heart device experienced 15 deaths, while 39 patients on drugs died during the same period, researchers said.
His research led to a number of heart devices developed by the team that he now leads at Penn State.
This is the highest bridge-to-transplant rate for any heart device in the world.
For all involved, there is big money in heart devices.
All manufacturers of heart devices recall products or have product failures.
There's no doubt in my mind that given enough time and resources we could have a quite excellent total heart device.
The conference also called for increased postmarket studies of heart devices.