Sinus arrhythmia is a variation in the heart's sinus rhythm, usually caused by changes in a person's breathing cycle. It's a ...

sinus bradycardia, sinus arrhythmia and 1° atrioventricular block. Abnormal findings are unrelated to regular training and also found in underlying pathological cardiac conditions. These include ...

In fact, up to 60% of athletes demonstrate ECG changes (in isolation or in combination) such as sinus bradycardia, sinus arrhythmia, first-degree atrioventricular (AV) block, early repolarisation, ...

and prolonged sinus pauses after AF termination, which is also known as tachycardia-bradycardia syndrome. When antiarrhythmic drugs (AADs) are administered for rhythm or ventricular rate control ...

You may need a pacemaker if you have a heart rhythm disorder When your ... than 60 beats per minute and is called bradycardia. This may indicate sick sinus syndrome or heart block, and these ...