Pacemaker replacement for the 2nd time is not a hassle, some 2nd replacements may just be a battery replacement, just changing the battery under the skin in the chest, some may have the electrode battery replaced along with it, which is pretty much the same as the 1st surgery, and is minimally invasive as well. Most pacemakers have a life expectancy of 7 or 8 years, but some may be used more frequently and need to be replaced in 4 or 5 years, and some may need to be replaced after 8 or 9 years if they are used less frequently. But for most people, as long as the electrodes have not fallen out, the replacement is just a battery replacement. A small incision is made in the chest and the battery is removed from the subcutaneous pouch and replaced. Some pacemakers may need both the electrodes and the battery replaced, so the procedure is done again as in the 1st surgery, still by puncturing the blood vessels, placing the electrodes in the atria or atria and ventricles, and making a small subcutaneous incision in the left anterior chest to put the battery pouch in. The entire procedure can be completed in a few hours, and you can usually be out of bed in 72 hours after the procedure. If there is any discomfort, you should seek medical attention and follow the instructions of your medical professional for treatment to avoid life-threatening situations.