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Dr. Andrew Rynne
MD
Dr. Andrew Rynne

Family Physician

Exp 50 years

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Can Having Atrial Lead Implanted Close To Ventricle Lead To Supraventricular Tachycardia?

I'm 59 years old (6', 168 lbs). I have been diagnosed with RBBB and have had a pacemaker since 1/2013. It was implanted because of 2:1 heart rate drops during exercise. I changed to a newCardiologist 3 weeks ago because the first one never did adjust my PM to stop the 2:1 drops. The new Cardiologist reprogrammed my PM and I think that the drops have mostly stopped; but, now during exercise, nearly every time around 145-155 bpm, I experience a jolt-like sensation in my heart, and next, my breathing becomes difficult and I soon have to stop my running exercise activity. Next, my heart rate remains at about 125-135bpm for 1.5 to 2.5 hours, as monitored by my heart rate monitor. My Cardiologist suspects SVT and I will begin wearing a Holter monitor on Monday. Do you agree that these symptoms may be SVT? I've had HR drops during running for the last 35-40 years; but have had the prolonged high heart rates following exercise only since having the PM implant. My current Cardiologist said to me that the atrial lead of my dual lead PM is implanted very close to the ventricle. Could this be the sole cause of my SVTs?

Best regards. Thank you.
Thu, 2 Jan 2014
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  User's Response
HI
Thank for asking to HCM
I really appreciate your concern, in the beginning you said that you have RBBB and this would be the main concern, if the drop beat was symptomatic, (compelling) then the PM would have been thought, again if you do have history of RBBB (unclear ) and PM implanted then you are not suppose to do any kind of exercise, this may cause further disturbances in heart beat, this is not the Supra ventricular tachycardia, stop exercise medically manage the conduction defect now take care and have nice day.
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Can Having Atrial Lead Implanted Close To Ventricle Lead To Supraventricular Tachycardia?

HI Thank for asking to HCM I really appreciate your concern, in the beginning you said that you have RBBB and this would be the main concern, if the drop beat was symptomatic, (compelling) then the PM would have been thought, again if you do have history of RBBB (unclear ) and PM implanted then you are not suppose to do any kind of exercise, this may cause further disturbances in heart beat, this is not the Supra ventricular tachycardia, stop exercise medically manage the conduction defect now take care and have nice day.