Bradycardia is a condition characterized by a slower than normal heart rate. While a normal adult heart beats between 60 and 100 times per minute, bradycardia is defined when heart rate falls below 60 ...

Sinus bradycardia occurs on an ECG when there is a normal upright P wave in lead II ― sinus P wave ― preceding every QRS complex with a ventricular rate of less than 60 beats per minute.

Sinus bradycardia is a form of slow heart rate ... This pause provides time for the atria of the heart to finish beating, which causes blood to pool inside the ventricles of the heart.

Tachycardia-bradycardia syndrome (i.e. pauses after ... lithium). The actual cause of sick sinus syndrome is related to replacement of the sinus node with fibrinous tissue. This usually occurs ...

Exercise training-induced bradycardia may be due to electrical remodeling of the sinus node ... If bradycardia is not caused by exercise, a low heart rate means that your heart — which isn ...

sinus bradycardia, sinoatrial block, and alternating episodes of tachycardia and bradycardia. [1] A large proportion of SND patients also have atrial fibrillation (AF) and prolonged sinus pauses ...