Drug induced bradycardia may be arranged arbitrarily according to the following classifications. Clinically insignificant or benign asymptomatic bradycardia without important hemodynamic changes ...

Sinus bradycardia is frequently asymptomatic. Heart rates in the 40s and 50s can be tolerated well. When symptoms arise, they manifest as fatigue, dizziness and dyspnea on exertion (including ...

Frequently, sinus bradycardia is asymptomatic. Heart rates in the 40’s and 50’s can be well tolerated. When symptoms arise they manifest as fatigue, dizziness and dyspnea on exertion ...

Therefore, depending on the circumstances, bradycardia may be symptomatic with a heart rate of 60 beats/min and asymptomatic at a heart rate of 30 beats/min.