A permanent pacemaker is a small device that is implanted under the skin and sends electrical signals to start or regulate a slow heartbeat.

 A permanent pacemaker may be used to stimulate the heartbeat if the heart's natural pacemaker (the sinoatrial, or SA, node) is not functioning properly, has developed an abnormal heart rate or rhythm, or if the electrical pathways are blocked.

Children's pacemakers may be placed under the skin in one of several locations. Young children (infants, toddler, preschool, and young school-aged children) often have the pacemaker generator placed in the abdomen, since the fatty tissue found there can help protect the generator from normal everyday childhood activities such as playing.

As a child gets older (nearing adolescence), the generator is often placed in the shoulder area, just under the collarbone. Submit here.

When the heart's natural pacemaker has a dysfunction, the signals it sends out may become erratic: either too slow, too fast, or too irregular to stimulate adequate contractions of the heart chambers. When the heartbeat becomes erratic, it is referred to as an arrhythmia (an abnormal rhythm of the heart, which can cause the heart to pump less effectively). https://bit.ly/3a3uz0E