The QRS complex can be wide if aberrancy is present (ie, right or left bundle branch blocks). Causes of atrial tachycardia include chronic hypertension, congestive heart failure, valvular heart ...
Atrial Tachycardia with 2:1 Block. When atrial tachycardia occurs with a 2:1 conduction block, digoxin toxicity should be considered.
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 after AF termination ...
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