Unexplained up and down of HR after 30 min or HR >= 150
I have a pacemaker because of an AV Block II/III and I am an active runner (several marathons). My cardiologist and I have completely tested the "MEDRONIC Ensura" as far as the limits are concerned. The pacemaker is set to DDD.
After a certain time or reaching a HR >=150 the system periodically takes me back about 10 beats and after about 6sec again 10 beats up. (in Polar Flow you can see the phenomenon very well).
Now I suspect that maybe the AV delay (min SAV 90 ms) is the reason for this. MEDTRONIC in DE has no plausible explanation.
Maybe someone has the same problem or even a solution in the PM setting.
Thanks in advance
see Polar Flow Screen in the Galery
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I have an ICD which is both a pacer/defib. I have no problems with mine and it has saved my life.