Supraventricular arrhythmia before and after surgical closure of atrial septal defects: spectrum, prognosis and management

Supraventricular arrhythmias are often observed in patients before and after atrial septal defect repair. Although several papers report different incidences of sustained supraventricular arrhythmias, postoperative ‘incisional’ macrore-entrant tachycardias have not been systematically investigated.