Hello, I'm an expert in medical devices, specifically in the field of cardiac rhythm management. I can provide you with an informed response to your question about pacemakers. **Yes, it is possible for a person's heart to stop even if they have a pacemaker**, but this is quite rare and usually occurs due to specific issues or complications. Pacemakers are designed to regulate the heartbeat by sending electrical impulses to the heart muscle when it detects a slow or irregular heart rhythm. However, there are several factors that could lead to a pacemaker not functioning properly: 1. Battery Depletion: If the pacemaker's battery runs out, it will not be able to send the necessary electrical impulses. 2. Lead Issues: The leads are the wires that connect the pacemaker to the heart. If these leads become damaged or disconnected, the impulses may not reach the heart. 3. Malfunction: Like any electronic device, pacemakers can malfunction due to manufacturing defects or other issues. 4. Infection: In some cases, an infection can occur at the site of the pacemaker or lead insertion, which could potentially affect its function. 5. Electromagnetic Interference: Strong sources of electromagnetic interference can sometimes disrupt the pacemaker's function. It's important to note that pacemakers are regularly checked and monitored to ensure they are functioning correctly. Patients with pacemakers are also advised to avoid certain environments and activities that could interfere with the device. read more >>

This is a common misunderstand- ing. A pacemaker does not actually beat for the heart, but delivers en- ergy to stimulate the heart muscle to beat. Once someone stops breathing, his body can no longer get oxygen and the heart muscle will die and stop beating, even with a pacemaker.read more >>