Ｏｍｎｉｃａｒｂｏｎ弁のシネ撮影及びドップラーエコー法による弁機能評価

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  • Clinical evaluation of Omnicarbon valve prostheses by cineradiography and Doppler echocardiography.

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The Omnicarbon valve prostheses (O-C valve) were used in 30 patients, 8 underwent aortic valve replacement, 23 had mitral valve replacement. Follow-up was achieved for a mean of 22.7±14.1 months and a maximum 4 years. Thrombotic complications were not difined. Postoperative clinical status improved for all patients, in NYHA classification to 1.2 degree from 2.9 degree. The maximum open angle by cineradiography was 70±4.08°for aortic valve and 56±1.37° for mitral valve. The net flow area/orifice area ratio of mitral valve by cineradiography was 85.4±1.6%. Peak valve pressure gradients by doppler echocardiography was 18.38±3.0mmHg and 6.99±1.2mmHg for aortic and mitral valve. In mitral valve replacement, LAD by echocardiography and Q-I time improved significantly (P<0.01, 0.002) after the operation. Our data indicate that the O-C valve is safe, has good function and gives satisfactry clinical results.

収録刊行物

  • 人工臓器

    人工臓器 19 (1), 331-334, 1990

    一般社団法人 日本人工臓器学会

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