Re: Sinus Tachycardia and sinus bradycardia
Hiya Pika, let me see if I can help you a little. I am just guessing here, but I think what you heart doctor meant is there are A LOT of things outside of the heart that influences you heart rate, particularly towards the high side. Hormones from the kidneys, the brain, and the thyroid all can influence your heart rate. Most of them typically cause a fast heart rate. Now the brain can cause a lower heart rate. The dangerous thing about a low heart rate is if you dont get blood pressure to you brain, obviously you die. So the doctors want to intervene to be 100% sure this doesnt happen. On the other hand, there isnt a way to stop the heart rate from going to high (even though we would ALL wish for sometime to stop our racey hearts from racing). But what is good about that is, most of the time, with a fast heart beat, you still get blood to the brain, no matter how high it is. If it doesnt then you will pass out and it becomes easier for the heart to get blood to the brain. Doctors can try to regulate things that make your heart rate go too high with drugs, but a lot of it has to come from us, the patient. We have to try and deal with and eliminate things like stress, anxiety, panic attacks, etc. I wish I had a statistic to give you, but I know that a significant amount of sinus tachycardia is caused by external sources (outside of the heart). Does that help any??