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  • Title: Results of combined valvular and myocardial revascularization operations.
    Author: Reed GE, Sanoudos GM, Pooley RW, Moggio RA, McClung JA, Somberg ED, Praeger PI.
    Journal: J Thorac Cardiovasc Surg; 1983 Mar; 85(3):422-6. PubMed ID: 6600801.
    Abstract:
    A total of 105 patients underwent combined coronary artery and valvular operations. Sixty-six had combined coronary artery bypass grafting (CABG) and aortic valve replacement (AV), 28 had CABG and mitral valve operations (MV), and 11 patients had CABG and double or triple valve operations (DTV). An average of 3.0 bypasses was done, range one to seven. These patients were compared to a similar group of patients who underwent valve replacement(s) only, without CABG. Bypass time was increased for the combined groups, as was ischemic cross-clamp time. Early mortality was 3.0% AV, 3.5% MV, and 9.1% DTV in the combined groups and 1% in the valve only groups. The higher mortality for the combined groups was almost entirely due to the 23% mortality in women over 70 years of age. Perioperative myocardial infarction (MI) was higher in the combined groups (5% MI, 9% probable MI versus 2.9% MI, 4.1% probable MI). All survivors were in improved clinical condition and free of angina. Mortality and improvement were unrelated to perioperative infarction. The small increase in risk compared to the significant improvement from the combined approach has led to the following principles: coronary arteriography on all adult patients requiring valvular operations; bypass of all significant coronary lesions; restoration of valvular function and hemodynamics; and myocardial preservation with cold cardioplegia during a single period of cross clamping, topical cold, and systemic hypothermia.
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