| 21及23mm双叶机械主动脉瓣血流动力学表现比较 |
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| 引用本文： | 陈志强,赖颢,陈昊,程蕾蕾,王春生. 21及23mm双叶机械主动脉瓣血流动力学表现比较[J]. 中国临床医学, 2002, 9(2): 116-117 |
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| 作者姓名： | 陈志强 赖颢 陈昊 程蕾蕾 王春生 |
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| 作者单位： | 复旦大学附属中山医院心外科,上海市心血管病研究所,上海,200032 |
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| 摘 要： | 目的：应用超声心动图评估21mm双叶机械主动脉瓣的血流动力学表现。方法：1995年2月－2001年2月间15例置换外径21mm、26例置换外径23mm St.Jude双叶机械主动脉瓣病人平均随访时间为23个月，以超声心动图评估其静息时及活动后之血流动力学表现，并加以比较。结果：置换21mm及23mm St.Jude双叶机械主动脉瓣患者的静息及活动后的跨瓣压差并无显著差异。结论：21mm St.Jude双叶机械主动脉瓣可满足大部分小瓣环患者的需要。
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| 关 键 词： | 人工心脏瓣膜 超声心动图 血流动力学 心血管疾病 |
Comparison of Hemodynamic Performance of the 21mm and 23mm Bileaflet Mechanical Aortic Prostheses |
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| Chen Zhiqiang Lai Hao Chen Hao,et al.. Comparison of Hemodynamic Performance of the 21mm and 23mm Bileaflet Mechanical Aortic Prostheses[J]. Chinese Journal Of Clinical Medicine, 2002, 9(2): 116-117 |
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| Authors: | Chen Zhiqiang Lai Hao Chen Hao et al. |
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| Abstract: | Objective:To evaluate the hemodynamic performance of 21mm bileaflet mechanical aortic prostheses echocardio-graphy. Methods: 15 patients received 21mm St. Jude aortic prostheses and 26 patients received 23mm St. Jude aortic pros-theses were studied by echocardiography. The follow - up time was 6-55 months. Studies were done at rest and after the ex-ercise, then the results were compared. Results: The transvalvular gradients at rest or after the exercise of the two groups were no significant different. Conclusion: The 21mm St. Jude bileaflet mechanical aortic prosthesis offers an excellent hemo-dynamic performance when implanted in the small aortic annuli. |
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| Keywords: | Mechanical aortic prosthesis Echocardiography Hemodynamic performance |
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