Hello, sir. Thank you for your question and welcome to HCM. I understand your concern.
I will start my answer by telling you that a
heart rate at 54 beats per minute is not that low. Worldwide, the standard normal figures of heart rate are 60-100. In highly trained athletes and in people with vigorous physical activity, it is accepted as normal down to 48 beats per minute. If you did not experience some symptoms, such as
dizziness, near-
fainting or abrupt fainting, then with highest probability you have nothing to worry about. But, in my experience, I do not fight about what is 95% sure. I rather fight to clear that 5% of suspicion I have. Therefore, I would recommend you to be put on a 24- or 48-hour Holter rhythm monitor registration, to be clear is this heart rate, in your case, something to worry about, or not. Keep in mind that some of the drugs, used to treat
high blood pressure, can cause lowering of the heart rate, as well, such as most of the beta-blockers and calcium channel blockers (
verapamil and
diltiazem). If you are on these drugs, I suggest you to discuss with your curing doctor, to lower their dosage or switch to an another blood pressure-lowering drug class.
I hope I was helpful. Wish you a good health.