Pacemaker implantation is a medical procedure where a small device, called a pacemaker, is placed under the skin of the chest to help regulate the heart's rhythm. This device sends electrical signals to the heart to ensure it beats at a normal rate, which is especially important for individuals with conditions like bradycardia or other heart rhythm disorders. The procedure typically involves making a small incision and connecting the pacemaker leads to the heart. After implantation, patients may need regular check-ups to monitor the device's function and battery life, ensuring it continues to support a healthy heart rhythm.