Medtronic - How to stop my heart going over 100bpm?

Hi all,

I am an 79 year old male, reasonably fit. Had a Medtronic A3DR01 Advisa MRI SureScan Pacemaker installed in 2015.

Prior to and after having had it installed I have had trouble walking around the block. At the slightest hill I very quickly become fatigued and cannot continue. I can however walk around on "the flat" all day.

Also my heart will rapidly increase to over 100bpm with very little exertion making me feel very unwell. 

I have had both my cardiologist and my GP try and investigate and both are unfortunately out of ideas as to how to resolve or improve my situation.

Wondering if anyone might have experienced anything similar and worked out a solution. 

Is there a setting that will allow me to walk up minor slopes and also prevent my heart from going up over 100bpm with minor exertion?

My medications in case it may be the cause:


- Vasocardol  CD360mg for High blood pressure

- Cardiprin 100mg - Thin blood

- Spiractin 25mg - Blood pressure

At Night

- Crestor/Rosuvastatin 40mg to Reduce cholesterol

- Abisart 300mg for Blood pressure

- Coumadin (Warfarin) 3mg to Thin blood to prevent clots 

- Cavstat 40mg for Cholesterol



by AgentX86 - 2021-10-04 00:14:17

There could be any number of reasons for this.  Long-distance diagnostics isn't easy, we're not doctors, and you don't tell us why you needed a pacemaker but from what you've said, I'll make a fewf guesses.

1. 100bpm is perfectly normal for some small amount of activity.

2. Since you're taking coumadin (actually two anticoagulants!), we can assume that you have some sort of arrhythmia. If your arrhythmia kicks in, all bets are off.  Tachycardia and/or SOB/exhaustion shouldn't be too surprising.

3. You have Bradycardia caused by SI node dysfunction and probably are chronotropically incompetent.  You then are using the rate-response (RR) feature of your pacemaker.  It's simply set more sensitive that you'd like.  Have it adjusted.

...or any combination.

You know you're wired when...

You run like the bionic man.

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My pacemaker is intact and working great.