Surgical modifications have significantly reduced the incidence of late atrial tachycardia following Fontan repairs, though late ventricular tachycardia remains a concern requiring aggressive management.
The incidence of atrial arrhythmias following Fontan repairs varies by the type of surgery and duration of follow-up. The incidence of late atrial tachycardia has been reduced from 60% to less than 20% by surgical modifications. Late ventricular tachycardia is reported in 3% to 12% of patients. Aggressive efforts to eliminate tachycardia and improve hemodynamics may improve clinical status.
Barbara J. Deal (Sun,) studied this question.
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