Systolic blood pressure before/after dual chamber PMs and possible explanation
I had low heart rate and occasionally high heart rate and recently had a pair of dual chamber PMs implanted. I also had high blood pressure and had been taking medications (still am taking the same medications).
Because of my HR lower than 40bpm, almost all electronic BP measurement devices that sold on Amazon or elsewhere did not work for me. I had to buy a high quality stethoscope and a large pressure meter and learned how to measured BP myself.
Before PMs, even with medications, for the systolic pressure(the 1st number), it dropped off initially then after about 1/2 hour leveled off. The starting BP was 190ish then dropped and leveled off at 140ish in about 30 min. (i am not concerned about the diastolic BP because it has been lower than 60). I had been very worried about the 190ish BP because it could cause a stroke. My doctor and cardiologist didn't know what to do except ask me to try different BP medications. My EP and I thought the answer could be PM.
After PMs, with the same medications, the initial value is now 120ish and drops off then leveled off at 110ish in about 15 min
Because the BP has an initial value and a leveled off value, I really don’t know which one to use. I incline to use the leveled off value, but this is not the value measured at the doctor’s office, there it measures the initial value.
There is a significant drop in BP before and after PMs. Does anyone has similar situation?
A possible explanation would be : when the heart rate is so low (34bpm), the heart or body tries to compensate by increasing the blood pressure so that the cells could get enough supply. Following the same line of reasoning, after PMs, such compensation is no longer needed, thus blood pressure drops to a lower value. Make sense?
Since my BP is sufficiently low now, I intend to do an experiment by dropping one of my medications, amlodipine which is a calcium blocker. From the article that Lavender sent me, Ca++ ions are the key ions that generate the electric pulse that tells the heart to contract. It also causes swelling of the angle. Amplodipine blocks calcium; I am concerned.