2 Nov 2011 ... In sinus bradycardia, a slow heart rate occurs because the heart's sinus node is ... Usually, sinus bradycardia is not considered to be a serious ... heartdisease.about.com |
Sinus bradycardia is a heart rhythm that originates from the sinus node and has a rate of under 60 beats per minute. Contents. 1 Signs and symptoms; 2 Causes ... en.wikipedia.org |
Sinus bradycardia is a slower than average heartbeat. Not always a bad thing, sinus bradycardia can indicate good health, but may... www.wisegeek.org |