Narrow-complex tachyarrhythmias are rapid heart rhythms originating in the upper heart chambers, characterized by a QRS duration of less than 120 milliseconds on an EKG. These arrhythmias can be ...
What is the most common narrow complex tachycardic arrhythmia besides atrial fibrillation or atrial flutter? The most common cause of a narrow complex tachycardia is AVNRT or atrioventricular ...
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