Journals on Medical Moicrobiology - BJSTR Journal

Abstract

After the first successful repair of an AV canal defect by C. Walton Lillehei in 1955, there have been tremendous improvements in both surgical techniques and #perioperative care of patients. Nowadays early mortality after surgical repair has dropped to less 3 to 4 % in many parts of the world. On the other hand, in terms of #complexity, the repair of an AV canal defect could be quite challenging for surgeons in some cases. When we look at Aristotle scoring system which grades congenital cardiac procedures with regard to their complexity (simple: 1.5 to very complex: 15), surgical repair of an complete AV canal has been still classified as a comlex procedure (Aristotle score 9) [1]. Therefore, in this paper we try to summarize current surgical techniques used for repair of this complex pathology.Common morphological features of AV canals are described as deficiency of a portion of the inlet #interventricular septum, attachment of a portion of the AV valve to the septum and equal distances of two AV valves to the cardiac apex (Figure 1a). Due to the abnormal attachment of the anterior medial leaflet, the left ventricular outflow tract seems elongated and sometimes obstructed (Figure1b). That might be more prominent in patients with partial AV #canals. In AV canal defects, aortic valve loses its wedged position between the left and the right AV valves.

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Atrioventricular Canal Defects: Morphologic Features and Surgical Techniques by Koray Ak in BJSTR 

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