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- W2414721625 abstract "Aortic regurgitation (AR) and aortic root dilatation in 29 consecutive patients with bicuspid aortic valves but without aortic root disease (20 males, and 9 females: aged 27-85 years) were studied using two-dimensional echocardiography. The normal ranges of aortic root dimensions were calculated from values of 185 normal subjects, as 95% confidence intervals. AR was observed in 17 patients by color flow mapping. In 12 of the 17 AR patients, no significant lesion of the aortic cusp was detected by two-dimensional echocardiography. These 12 AR patients were compared with 12 patients without AR. Increase in dimension of the aortic root was relatively frequent in the 12 AR patients at the aortic annulus (AA) (67 vs 17%, p < 0.05), and at the sinus of Valsalva (A1) (67 vs 17%, p < 0.05). At the ascending aorta 5 mm distal to the sinus of Valsalva (A2), the difference was not significant (58 vs 17%, p < 0.09). The 12 bicuspid AR patients without significant lesions of the aortic cusp were compared with 41 AR patients with normal tricuspid aortic valves. The frequencies of cases with increased aortic root dimension were 67 vs 46% (ns) at the AA, 67 vs 22% (p < 0.05) at A1 and 58 vs 5% at A2 (p < 0.01). Thus, aortic annular dilatation was thought to be the cause of AR in bicuspid and tricuspid aortic valves without significant lesions of the aortic cusps, and generalized dilatation of the aortic root was more frequent in bicuspid AR patients than in tricuspid AR patients.(ABSTRACT TRUNCATED AT 250 WORDS)" @default.
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- W2414721625 date "1992-01-01" @default.
- W2414721625 modified "2023-09-23" @default.
- W2414721625 title "[Echocardiographic assessment of aortic regurgitation and aortic root dilatation in bicuspid aortic valve]." @default.
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