Sinus Bradycardia: Definition, Uses, and Clinical Overview
Sinus Bradycardia is a heart rhythm that starts in the sinus node but runs slower than expected. In adults, it commonly refers to a sinus rhythm under about 60 beats per minute on an ECG. It can be normal (for example during sleep or in trained athletes) or related to illness or medications. The term is used in clinics, emergency care, and hospital settings to describe and interpret a slow pulse.