by Pete Williams
Former Vice President Dick Cheney underwent surgery last week to have a tiny pump implanted to assist in the functioning of his heart, a family spokesman says.
The surgery, to insert a left ventricular assist device, was performed at Fairfax Hospital in Virginia.
Cheney, 69, has suffered five heart attacks, the first when he was 37. His most recent heart attack, described as "mild," was in February.
"A few weeks ago, it became clear that I was entering a new phase of the disease when I began to experience increasing congestive heart failure," Cheney said in a statement. After a series of recent tests and discussions with my doctors, I decided to take advantage of one of the new technologies available and have a Left Ventricular Assist Device (LVAD) implanted."
A doctor, who is part of his medical team, told NBC News that Cheney is "doing well now," but that the former vice president was short of breath and was experiencing "heart failure" before the device was implanted. He was "running on 3 cylinders. Now he's on 8," the doctor said.
The American Heart Association website defines the LVAD device as "a battery-operated, mechanical pump-type device that's surgically implanted. It helps maintain the pumping ability of a heart that can't effectively work on its own."