The Journal of thoracic and cardiovascular surgery
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J. Thorac. Cardiovasc. Surg. · Aug 2012
Effects of gender and ethnicity on outcomes after aortic valve replacement.
To evaluate the clinical outcomes after aortic valve replacement or aortic valve replacement and coronary artery bypass grafting in a large contemporary population, and to determine if outcomes are associated with patient ethnicity and gender status. ⋯ Ethnicity and gender were not associated with greater 30-day and 1-year mortality after aortic valve replacement or aortic valve replacement and coronary artery bypass grafting. Differences in postoperative outcomes were not observed between ethnic groups.
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J. Thorac. Cardiovasc. Surg. · Aug 2012
The relationship between plasma concentrations of ionized calcium and magnesium with cardiac energetics and systemic oxygen transport in neonates after the Norwood procedure.
We sought to determine the relationship between plasma calcium and magnesium concentrations with postoperative systemic hemodynamics and oxygen transport in neonates after the Norwood procedure. ⋯ Plasma magnesium may exert favorable effects on myocardial energetics and systemic oxygen transport in neonates after the Norwood procedure, whereas plasma calcium may be harmful. Maintaining a relatively high level of plasma magnesium and a low level of plasma calcium may improve myocardial work efficiency and the balance of systemic and myocardial oxygen transport.
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J. Thorac. Cardiovasc. Surg. · Aug 2012
Structural deterioration of the cryopreserved mitral homograft valve.
The aim of this study was to evaluate the long-term fate of the cryopreserved mitral homograft focusing on structural valve deterioration. ⋯ Mitral homografting was accomplished with early echographic results similar to those of valve repair. Structural valve deterioration produced mixed stenosis with insufficiency, and its incidence was comparable to that of bioprostheses structural valve deterioration. An improvement in the preservation mode of valvular homografts is warranted.
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J. Thorac. Cardiovasc. Surg. · Aug 2012
Decreasing prevalence but increasing importance of left ventricular dysfunction and reoperative surgery in prediction of mortality in coronary artery bypass surgery: trends over 18 years.
The number of patients referred for coronary artery bypass grafting (CABG) has fallen, whereas their risk profile appears to be increasing. We evaluated changes in the predictors of hospital mortality among patients undergoing CABG during a span of 18 years. ⋯ Whereas the prevalence of most risk factors increased with time, left ventricular dysfunction and reoperative CABG became significantly less common. However, the odds of mortality associated with these 2 predictors increased, indicating that although they occur less commonly, these 2 risk factors paradoxically play an increasingly important role in determining patient outcomes.