Nonspecific atrioventricular septal defect (AVSD) diagnosed at 5 months age, after cardiac arrest. Progressive dyspnea, peripheral cyanosis, with development of heart failure and pulmonary hypertension. At 18 years, confirmation of Eisenmenger´s sydrome, (complete AVSD: ASD - “ostium primum”; inlet ventricular septal defect and common AV valve).