Four years in

So I'm four plus years into my first PM, Biotronik Eluna-DDR. My doc recommended it because of the rate reponsiveness of the Biotronik technology, CLS, since I am a very active 73 year old (Jogging, gym, skiing). Things have gone pretty well. Each year I push the doc to up my top rate because I seem to (according to my HR watch) be pushing against the upper limit. When running, for  example, I run out of oxygen before my legs get tired. Started at 120, now up to 150. Last time I saw him he balked at going beyond 150.(I asked for 160)  Said he would increase the responsiveness to see if that helped, but I really don't see much difference. He also made a vague comment about CLS not really performing as well as hoped. Any other comments on this?

One other thing that I do note: I can run a fairly long distance (3 miles at but when I am doing chores that require moderate upper body exertion, I get out of breath fairly quickly. Not sure why. Others have this experience?


Rate Response

by Swangirl - 2019-04-21 00:00:00

For the rate response feature to kick in it must get activated by upper body movement and/or foot strikes.  I believe that when I get breathless the rate response isn't working.  I tap the device a few times, stamp my feet and usually I get more juice.  

Type of PM?

by Jackw - 2019-04-21 16:50:20

Swangirl:  Thanks for your comment. Do you have a Biotronik pm? They have a differnt type of rate response from other pms not tied to the accelerometer. (in fact, the acclerometer on mine is turned off and CLS is turned on). CLS is supposed to sense "changes in cardiac contractility" to determine demand for more blood flow and increase the rate accordingly. Not sure your clever strategy for increasing the rate would work on mine.

St. Jude

by Swangirl - 2019-04-21 22:44:10

Mine is St. Jude with the accelerometer turned on.  It's never as good as a normal working heart.  I also worry with so much ventricle pacing that I will end up in "pacemaker syndrome" which is another name for heart failure.  

Ventricle pacing

by AgentX86 - 2019-04-21 23:27:31

The answer to "pacemake syndrome" is the third lead (biventricular or CRT pacing).  I'm 100% ventricle paced (no atrial lead at all).

You're right, no currently used rate response method is anything close to being as "responsive" as a normally functioning sinus node.  Alas, that is not to be for a good many of us.


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