Mine got down into the upper 30's while just sitting upright...low 30's if I lay down. I was able to get it a little higher if moving around, but I had profound PN with muscular weakness at this point, so 'exercise' (in the true sense of the word) wasn't possible.

I had already had 3 strokes (from another autoimmune condition called anti-phospholipid syndrome) and still having periodic TIA's (even with blood thinners). With the heart rate so low, they were concerned about enough blood getting to the brain and contributing to the TIA's, so the decided pacer was best way to go.

It was the right decision because the pacer keeps track of % of paced operation. At this point 89% of my heart beats are paced!! I would NOT be here without it.