Houck CA, de Groot NMS, Kardys I, et al. - Although Fontan conversion procedures involve atrial arrhythmia surgery as a well‐established component, there are no evidence‐based recommendations for arrhythmia surgery for macroreentrant atrial tachycardia and atrial fibrillation in other patients with congenital heart disease. Researchers here conducted a systematic review including 28 studies. During follow‐up ranging from 3 months to 15.2 years, median arrhythmia recurrence rate of 13% was reported. The acquired data suggest more effectiveness of biatrial lesions in the treatment of atrial fibrillation than exclusive right‐sided lesions. In the treatment of macroreentrant atrial tachycardia, right‐sided lesions seem to be more relevant; evidence for the superiority of additional left‐sided lesions is lacking. They identified insufficient data supporting the use of exclusive left‐sided lesions. Theoretically, this population may benefit from prophylactic atrial arrhythmia surgery, but there is limited evidence for the same. In future studies, they emphasize reporting outcomes according to the type of preoperative arrhythmia, underlying congenital heart disease, lesion set, and energy source, in order to be able to provide recommendations for arrhythmia surgery in patients with congenital heart disease.