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The Journal of Tehran University Heart Center، جلد ۴، شماره ۲، صفحات ۸۵-۹۰
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عنوان انگلیسی Quantification of Aortic Regurgitation Severity by Left Ventricular to Right Ventricular Stroke Volume Ratio
چکیده انگلیسی مقاله Background: Echocardiography is the most common test used for the evaluation of aortic regurgitation (AR). However, the role of echocardiography as an available and inexpensive method in the quantification of AR by the left ventricle to right ventricle stroke volume ratio (LV/RV SV ratio) has not been completely investigated. Methods: Between June 2005 and December 2007, 132 consecutive patients with AR (mean age: 44.7±14.6 years, 52.3% male) were enrolled in the study. All the patients underwent echocardiography; and aortography, if indicated, was performed as well. Results: Fifty-two percent of the patients had severe AR. There was almost a perfect agreement between echocardiography and cardiac catheterization in determining the severity of AR (Kappa=0.81). Associated valvular disease was found in 81.8% of the patients, the most common disease being mitral regurgitation (61%). The results of our bivariate and multivariate analyses showed a significant relation between the LV/RV SV ratio and the AR severity via either echocardiography or cardiac catheterization (both P=0.001). The receiver operating characteristic (ROC) curve analysis showed that the LV/RV SV ratio was very accurate in the detection of severe AR utilizing cardiac catheterization as the gold standard (AUC=0.71). The cut point value of the LV/RV SV ratio ≤1.5 had a sensitivity of 56% and specificity of 75% for the differentiation of non-severe from severe AR. Conclusion: Our study demonstrated that the LV/RV SV ratio was a simple and reliable method for the assessment of the severity of AR. This method is more accurate in the absence of a significant involvement of the other valves.
کلیدواژه‌های انگلیسی مقاله Aortic valve , Stroke volume , Echocardiography
نویسندگان مقاله مریم اسماعیل زاده | maryam esmaeilzadeh
shaheed rajaei cardiovascular medical and research center, iran university of medical sciences, tehr

سازمان اصلی تایید شده: دانشگاه علوم پزشکی ایران (Iran university of medical sciences)

خدیجه سلیمانی | khadijeh soleimany
shaheed rajaei cardiovascular medical and research center, iran university of medical sciences, tehr

سازمان اصلی تایید شده: دانشگاه علوم پزشکی ایران (Iran university of medical sciences)

مژگان پارسایی | mozhgan parsaee
shaheed rajaei cardiovascular medical and research center, iran university of medical sciences, tehr

سازمان اصلی تایید شده: دانشگاه علوم پزشکی ایران (Iran university of medical sciences)

حسین علی بصیری | hossein ali bassiri
shaheed rajaei cardiovascular medical and research center, iran university of medical sciences, tehr

سازمان اصلی تایید شده: دانشگاه علوم پزشکی ایران (Iran university of medical sciences)

فاطمه اسماعیل زاده | fatemeh esmaeilzadeh
shaheed rajaei cardiovascular medical and research center, iran university of medical sciences, tehr

سازمان اصلی تایید شده: دانشگاه علوم پزشکی ایران (Iran university of medical sciences)

هومن بخشنده آبکنار | hooman bakhshandeh abkenar
shaheed rajaei cardiovascular medical and research center, iran university of medical sciences, tehr

سازمان اصلی تایید شده: دانشگاه علوم پزشکی ایران (Iran university of medical sciences)

نشانی اینترنتی http://jthc.tums.ac.ir/index.php/jthc/article/view/124
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