RT Journal Article SR Electronic T1 The unnatural history of an atrial septal defect: Longitudinal 35 year follow up after surgical closure at young age JF Heart JO Heart FD BMJ Publishing Group Ltd and British Cardiovascular Society SP 1346 OP 1352 DO 10.1136/heartjnl-2013-304225 VO 99 IS 18 A1 Judith A A E Cuypers A1 Petra Opić A1 Myrthe E Menting A1 Elisabeth M W J Utens A1 Maarten Witsenburg A1 Wim A Helbing A1 Annemien E van den Bosch A1 Mohamed Ouhlous A1 Ron T van Domburg A1 Folkert J Meijboom A1 Ad J J C Bogers A1 Jolien W Roos-Hesselink YR 2013 UL http://heart.bmj.com/content/99/18/1346.abstract AB Objective To describe the very long-term outcome after surgical closure of an atrial septal defect (ASD). Design Longitudinal cohort study of 135 consecutive patients who underwent surgical ASD repair at age <15 years between 1968 and 1980. The study protocol included ECG, echocardiography, exercise testing, N-terminal prohormone of brain natriuretic hormone, Holter monitoring and cardiac MRI. Main outcome measures Survival, major events (cardiac reinterventions, stroke, symptomatic arrhythmia or heart failure) and ventricular function. Results After 35 years (range 30–41), survival status was obtained in 131 of 135 patients (97%): five died (4%), including two sudden deaths in the last decade. Fourteen patients (16%) had symptomatic supraventricular tachyarrhythmias and six (6%) had a pacemaker implanted which was predicted by early postoperative arrhythmias. Two reoperations were performed. One ischaemic stroke occurred. Left ventricular (LV) and right ventricular (RV) ejection fractions (EF) were 58±7% and 51±6%, respectively. RVEF was diminished in 17 patients (31%) and in 11 (20%) the RV was dilated. Exercise capacity and quality of life were comparable to the normal population. No clear differences were found between ASD-II or sinus venosus type ASD. Conclusions Very long-term outcome after surgical ASD closure in childhood shows good survival and low morbidity. Early surgical closure prevents pulmonary hypertension and reduces the occurrence of supraventricular arrhythmias. Early postoperative arrhythmias are predictive for the need for pacemaker implantation during early follow-up, but the rate of late pacemaker implantation remains low. Although RVEF was unexpectedly found to be decreased in one-third of patients, the functional status remains excellent.