کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9970453 | 1577913 | 2005 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Doppler Echocardiography of Normal Starr-Edwards Mitral Prostheses: A Comprehensive Function Assessment Including Continuity Equation and Time-velocity Integral Ratio
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موضوعات مرتبط
علوم پزشکی و سلامت
پزشکی و دندانپزشکی
کاردیولوژی و پزشکی قلب و عروق
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چکیده انگلیسی
The purpose of this study was to provide comprehensive Doppler echocardiographic assessment of the function of the normal Starr-Edwards mitral valve prosthesis using all the Doppler hemodynamic variables described to date, including the mitral valve prosthesis time-velocity integral (TVI)/left ventricular outflow tract TVI ratio and the prosthesis performance index. All patients had a peak early mitral diastolic velocity of no more than 2 m/s or a pressure half-time that was less than 130 milliseconds. All but one patient had either a peak early mitral diastolic velocity of no more than 2 m/s or a mitral valve prosthesis TVI/left ventricular outflow tract TVI ratio of less than 2.2, regardless of prosthesis size or left ventricular systolic function. There was a trend of decreasing prosthesis performance index with increasing prosthesis valve size that was not statistically significant, however.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of the American Society of Echocardiography - Volume 18, Issue 12, December 2005, Pages 1399-1403
Journal: Journal of the American Society of Echocardiography - Volume 18, Issue 12, December 2005, Pages 1399-1403
نویسندگان
Joseph F. MD, Manfredi MD, David O. Hodge, Regina M. Herges, Thomas A. MD, Fletcher A. MD,