Welcome to our Sinus Bradycardia reference page. This page provides a summary definition followed by introductions to our practice drills, quizzes, lessons and interactive guides.
Definition of Sinus Bradycardia
Sinus bradycardia is a heart rhythm that originates in the sinus node with a rates less than 60 beats per minute.
Sinus bradycardia is a common condition in both healthy individuals, particularly athletes. It can also
occur normally during sleep.
Inappropriate Sinus Bradycardia
Inappropriate Sinus Tachycardia can be caused by numerous factors, including: hypothermia, hypothyroidism, sick sinus syndrome), seizure and poisoning.