“…To enable adequate systemic blood flow, these patients must have an atrial septal defect, and usually those with a larger defect do clinically better than those with a restrictive interatrial communication 5 . The cases of corrective surgery for TAPVC in adults reported in the literature are listed in Table 1; the majority of these patients were less than 50 years of age 6–31 . Most adult patients presented with the supracardiac type of TAPVC, and only seven authors describe adult patients with an intracardiac type of TAPVC as in our patient 7,13,18,19,22,26,27 .…”