J.Jpn. Surg. Soc.. 102(4): 348-352, 2001

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Feature topic

COMBINED SURGERY FOR VALVULAR AND ICHEMIC HEART DISEASE

Combined coronary artery bypass (CAB) and valve surgery is one of the most challenging surgical procedures, but the operative results have improved over the years. We discuss several important points in combined surgery. The first point is cardioplegia, which should be perfect in such complex operations. Sufficient antegrade cold blood cardioplegia should be used in combined CAB and mitral valve surgery. Continuous retrograde cardioplegia is required in CAB and aortic valve surgery. The second point is the prosthesis and grafts. A mechanical prosthesis and arterial grafts should be used in younger patients, while a bioprosthesis and vein grafts with a left internal thoracic artery graft should be used in older ones. Finally, the choice of valve repair or replacement must be considered in mitral surgery with CAB. Valve repair is the choice in patients with mitral prolapse due to chordal rupture, because a perfect repair can be achieved using a well-known procedure. In cases in which repair appears difficult, replacement must be carried out as soon as possible. In mitral valve replacement the continuity between the papillary muscles and the mitral ring must be preserved for good left ventricular performance.

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