Background A routine sports evaluation identified constant alternation between a junctional and idioventricular rhythm in a 9-year-old child. During exercise testing, electrography demonstrated that ...
The correct answer is sinus pause due to sinus node exit block. The rhythm is regular at a rate of 80 beats/min, although two long RR intervals (└┘) with a rate of 40 beats/min are present in the ...
AMSTERDAM, the Netherlands—In patients with sinus node dysfunction treated with dual-chamber pacemakers, minimizing atrial pacing doesn’t lower the likelihood of developing atrial fibrillation (AF) ...
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