the biometric approach as a novel modified two-patch technique for complete atrioventricular septal defect repair

Background: pediatrics with atrioventricular septal defects (avsds), especially the complete avsd, have significant morbidity and mortality due to dangerous postoperative complications. objectives: we introduce a novel modified technique for complete atrioventricular septal defect repair with two years of follow-up. methods: after the cardiopulmonary bypass was established, we first measured the ventricular septal defect's width and the chordae tendineae length that are adjunct to the anterior leaflet of the mitral valve to the interventricular septum. the ventricular septal defect was then repaired in two separate stages with the biologic pattern of mitral and tricuspid valves, with the bovine patch. results: echocardiographic findings immediately after surgery and two years of follow-up revealed good left ventricular function, besides no residual atrial septal or ventricular septal defect. also, the findings showed no evidence of mitral regurgitation and lvot obstruction. conclusion: the novel technique in patients with complete atrioventricular septal defect repair accompanied by more minor postoperative short-term and long-term complications.