Can a pacemaker conk out?
I am a 56 y.o male cyclist and runner. On Feb. 25 of this year i had a Medtronic Azure dual lead PM implanted for 'weak electrical signal'. Resting HR was set at 60 BPM. (on my own I would drop into the mid 30s). At my six month checkup, the nurse/technician dropped the sleeping HR to 50 and raised my upper limit. All was well. No more lightheadedness, more energy. Last week I noticed a couple of 'small pings', not painful, but noticeable right at the implant site. Yesterday, the uphill part of my cycling commute felt too hard. This morning on my run, I felt slow and my max HR could not get up past 128. I'm paced 96% of the time. Just now sitting on the couch my Garmin (admittedly not the most accurate reader) said I was at 43 HR. What does this all sound like to you all? I will be following up with the clinic on Monday.