After talking with you last night, Don, I thought that would be the scenario. The good news is the pacemaker/defibrillators of today are extremely effective, the batteries usually last about 5 or more years, and they can be recharged externally, as I explained on the phone.
Good luck with the cardiac catheterization and don't mess with those young, cute, nurses for at least 24 hours after the procedure.
After a day of recovery, go for it!
All the best,
PSR-S950, Bose L1 Compact, TC Helicon Harmony-M, Digitech VR (2), Crown CM311A, Samson Q7, Sennheiser E855, Custom Console, Morgan 33 Out Island Sailboat, and lots of other silly stuff!