What is the service life of a permanent cardiac pacemaker?

Based on the condition you described, a permanent cardiac pacemaker is typically implanted subcutaneously (i.e., an implantable pacemaker), with an expected service life of approximately 10 years. When the battery nears depletion, the pacemaker will emit a warning signal; surgical replacement of the device will then be required. In daily life, it is important to take good care of yourself: avoid excessive emotional excitement, strenuous physical activity, and consumption of fatty, fried, or rich foods (e.g., heavy meats); instead, maintain a cheerful and relaxed state of mind.