Hi, Tiger (@motiger). Glad to get your message just now. Glad also that you’re taking Coumadin/Warfarin and don’t mind the inconvenience. I think it’s the best of the anti-coagulants (despite TV ads in dispute). One reason for my choice was the death of a friend who was on Coumadin and fell off a step ladder and struck his head. I was the first to find him, called the EMT, and sent him off to the emergency room. Sadly, the ER had no Warfarin antidote — CAN YOU BELIEVE THAT? So they called in a helicopter to ferry him to a more competent hospital — but the half-hour wait was too much, and he died shortly after he arrived at the other hospital. Sounds perverse, doesn’t it — he died from lack of treatment for an anti-coagulant. Not perverse, however. For Warfarin there is the Vitamin K solution that can stop the effects of the anti-coagulant in 15-20 minutes, while the other anti-coagulant drugs still do not have antidotes available, although drug companies are working to develop them.
My other point is whether you might be too concerned about your 150bpm heart rate. After a brisk mile walk, that doesn’t seem threatening, but you — and your cardiologist — would know better than I. I caution you about hankering to change to Carvedilol, which might work for you, but also might cause some uncomfortable side effects. Like with politics, it looks like the two (or three or four) sides of the issue need to get together and agree on a compromise that meets your personal preferences as the patient (the PPP).
For my heart rate, I rely on my BP meter at home, which reports heart rate along with blood pressure. Like you, I sometimes worry about a rate measured during a brief time, then multiplied to its per-minute equivalent. So I just take my heart rate the old fashioned way, counting the beats per minute and using that as a check on the meter. Bottom line, though, I rarely have any syncope symptoms (feelings of fainting) from accelerated heart rate during or after exercise, although it sometimes shows up when I stand up fast from lying or sitting positions.