Advance in Biomechanical Mechanism of Surgical Planning for Arterial Switch Operation

The arterial switch operation( ASO) is now the preferred surgical approach to the patient with complete transposition of the great arteries( TGA). Early and midterm results of the arterial switch operation are good. The problems and prospects of arterial switch operation were presented according to surgical experience and assumption of clinicians. The following three aspects were mainly reviewed in this paper. 1) A brief overview of surgical techniques for arterial switch operation. 2) An introduction on finite element modeling and experimental investigations for aortic root. 3) Research progress in the biomechanical mechanism of the influence of various geometric configurations for aortic valve on aortic insufficiency. Finally,based on the research,several modified geometric configurations for ASO was proposed while the biomechanical mechanism needs to be investigated so as to know the postoperative influence of the modified geometric configurations for ASO on aortic insufficiency.