Four years ago, while hanging out in the living room with his family, Bear just fell down for no discernible reason. “Looking back, we had heard him fall several times out of our sight, which we attributed to him slipping on our hardwood floors,” says Marsha. But she was shocked to watch him drop right in front of her. So she took Bear to the family vet, OSU alum Dr. Dan Lewer, who detected a problem with Bear’s heartbeat and immediately contacted the cardiology department at the OSU Veterinary Teaching Hospital.
The following Monday, Bear was in surgery and a pacemaker was implanted next to his heart. The procedure went well and, after several weeks of rest, he resumed normal activity. “He was out running and playing and enjoying life to the fullest,” says Marsha.
Pacemakers are relatively simple devices that consist of a battery, a computerized generator, and a wire. The wire, also called a lead, feeds through a vein connecting the generator to the heart. When sensors on the lead tell the computer that the heart is not beating properly, the generator sends electrical pulses to the heart.
Each year 600,000 pacemakers are implanted in humans. But, despite 78 million pet dogs in the U.S., only 300 pacemakers are implanted in dogs each year.
Veterinary cardiologists are still researching, studying and working on ways to optimize pacemaker procedures in dogs. Bear was about to help them advance veterinary medicine.