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• W1970789736 abstract "The purpose of this study was to analyze the relation of aortic valve weight to transvalvular gradient and area, with special regard to valve anatomy, size of calcific deposits, gender, and body size. Two hundred forty-two surgically excised stenotic aortic valves of patients (139 men, mean age 72 ± 9 years) who had undergone preoperative cardiac catheterization and echocardiography were weighed and examined with respect to number of cusps (tricuspid vs bicuspid), size of calcium deposits (microaggregates vs nodular macroaggregates), and presence of cholesterol clefts. The relation among valve weight, gradient, and area was studied. Transvalvular gradient was independent of gender or valve anatomy and was linearly correlated with valve weight absolutely (r = 0.33, p <0.01) or normalized by body surface area (r = 0.40, p <0.01). No correlation was evident between valve area and weight. Calcium macroaggregates were mainly present in men (51%) and in bicuspid valves (67%) and were seen to be strong determinants of valve weight (2.84 ± 1.03 g with macroaggregates vs 1.63 ± 0.56 g with microaggregates, p <0.001) but not of transvalvular gradient. Calcium microaggregates characterized tricuspid valves (62%), where transvalvular gradient was determined by valve weight (p = 0.0026). In conclusion, the heavier the valve, the less frequent were hypercholesterolemia, valve cholesterol clefts, hypertension, and diabetes mellitus." @default.
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• W1970789736 date "2011-03-01" @default.
• W1970789736 modified "2023-10-16" @default.
• W1970789736 title "Relation of aortic valve weight to severity of aortic stenosis." @default.
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• W1970789736 doi "https://doi.org/10.1016/j.amjcard.2010.10.052" @default.
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