Can pacing percentage reduce?

Hi PM Clubbies

I have a PM to treat type 2 heart block (Mobitz T2). 

I have had the PM for a bit over 2 years. Initial pacing was 11% and it gradually increased to about 44%.

The latest remote transmission stated that it had dropped to <1%. I have no idea how this is possible. It is fantastic news for me as it is accompanied by great general wellbeing, increased energy and fitness levels. My Apple Watch is also telling me that my heart rate during exercise has dropped by about 20 b/min. Fast walks (9 min/km) have dropped from 115 to 90 b/min, gentle jogs (6:30 min/km) from 160 to 140 b/min. Resting heart rate remains similar, around 50-60 b/min.

Of course I am loving getting a bit of my old life back and I want to preserve this, but I have no idea what has changed, apart from a low dose of hypertension medication (blood pressure now normal) and a change in stress from not enough work and low cashflow (I own a management consulting firm) to plenty of work with good cashflow but associated operational stress (clients and staff related).

Can anyone shed light on what might be going on?

Thanks, Mark 

2 Comments

Beta blocker?

by Tracey_E - 2019-01-02 23:02:31

some blood pressure meds are beta blockers which also keep the heart rate down and help the heart work less hard in addition to dropping bp. 

Could the <1% be atrial? It’s unlikely your ventricular pacing percentage changed that much, though nothing is impossible. Block is something they typically gets worse over time, not better. 

Thanks!

by MarkFranklin99 - 2019-01-02 23:21:19

Thanks, Tracey, that seems like the most probable explanation 

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