PM Settings and pacing percentages

• by WillieG
• 2016-09-13 09:39:32
• Checkups & Settings
• 1525 views
• 1 comments

I have been meaning to post to say that after 11 settings changes in less than 2 years,  that I am finally happy to report that I no longer feel the block during exercise.  I wanted to thank Inga, TraceyE, DonR, Good Dog, BlueBowTye and all of you who were such a help to me in adjusting and learning. The change they made last Fall only extended the search interval from 512 ms to 1024 ms , so I felt the blocks every 8 min during a spin class rather than every 3-4 ( with my HR averaging about 130) . In April, they turned on the AV search feature on my Boston Scientific  Advanito and I have felt great since then.  I got my latest interrogation and was shocked that my pacing is now 100% ventricular (zero atrial) which is up from 6% last Feb and 9% in May. My question is , could I have advanced to complete heart block from exercised induced 2nd degree block or is my AV delay not long enough? They have the paced AV delay set for 70-180 ms and the sensed AV delay at 80-150 ms.  I have read that excessive pacing can cause multiple problems down the road and wondered if anyone has suggestions that I should consider.  Thanks!