The “septal obliteration technique” using a single oversized patch on the right ventricle
In patients with the true Swiss-cheese septum, adequate closure of the multiple defects essentially requires ventricular septation. An oversized composite patch of Dacron lined with preserved heterologous pericardium with multiple points of intermediate fixation was used by Cetin and other investigators with satisfactory short-term results.4 Their outcome may be complicated by abnormal ventricular function, and may require cardiac transplantation.4,8,42,48,49,56-61 This technique has also been described for multiple discrete muscular defects located in the posterior, and apical part of the septum caudal to the moderator band.