This procedure is a minimally invasive surgical procedure used to treat heart rhythm problems. It involves implanting a small device, called a pacemaker, near the heart. The pacemaker helps to regulate the heart's rhythm and can help to improve the quality of life for those with heart rhythm problems
From Wikipedia
A pacemaker, also known as an artificial cardiac pacemaker, is an implanted medical device that generates electrical pulses delivered by electrodes to one or more of the chambers of the heart. Each pulse causes the targeted chamber(s) to contract and pump blood, thus regulating the function of the electrical conduction system of the heart.