A pacemaker is a small device implanted under the skin near the collarbone to help control abnormal heart rhythms. It sends electrical impulses to prompt the heart to beat at a normal rate when it is beating too slowly or irregularly. Modern pacemakers are compact, long-lasting, and allow most patients to return to a full, active lifestyle shortly after implantation.
A pacemaker is recommended when the heart's natural electrical system fails to maintain an adequate heart rate, commonly due to sick sinus syndrome, heart block, or after certain heart surgeries. Your cardiologist will confirm the need through ECG monitoring and rhythm studies before recommending implantation.