این سایت در حال حاضر پشتیبانی نمی شود و امکان دارد داده های نشریات بروز نباشند
Iranian Heart Journal، جلد ۸، شماره ۳، صفحات ۲۷-۳۱
عنوان فارسی
چکیده فارسی مقاله
کلیدواژه‌های فارسی مقاله
عنوان انگلیسی ASSESSMENT OF LEFT VENTRICULAR SYSTOLIC FUNCTION USING PULSED-WAVE SYSTOLIC MITRAL ANNULAR VELOCITIES (SM): THE PRELIMINARY RESULTS - SIMPLE AND RELEVANT
چکیده انگلیسی مقاله Background-.Echocardiography has evolved as a well-established part of the evaluation of global myocardial function. Tissue Doppler echocardiography is a novel technique with wide applications, including estimation of myocardial systolic function. We hypothesized that velocity time integral (VTI) of systolic mitral annular velocity had a better correlation with systolic function in comparison to peak velocity. Consequently, for the first part of our investigation, we selected a population with near normal systolic function to show initially the linear correlation and secondly to obtain the normal values.Methods- We conducted a cross-sectional study at the echo lab with prospective simple nonrandom data collection on 50 consecutive patients (26 % normal, 38% CAD, 20% HTN, 10% MVP and 6% miscellaneous), mean age 45.6 yrs. (range: 18-80 yrs.) and 42% female. The exclusion criteria were prosthetic valves, LV systolic dysfunction, and/or severe regional wall motion abnormality, significant regurgitation (MR and/or AR), severe mitral annular calcification (MAC), non-sinus rhythm, paradoxical septal motion and poor endocardial line definition. All underwent complete echocardiographic study including TDI; some of the indexes of PW-TDI, with special attention to the systolic velocity of mitral annulus (Sm), were correlated with three different methods of EF measurement. Results- The mean ejection fraction and VTI of Sm were 61.68% and 1.6594, respectively. Of TDI indices, linear regression analysis showed that VTI of Sm had the strongest statistical correlation with EF measured by Simpson's method (p=0.014, EF= 50.1 + 6.96 X VTI). Conclusion- Despite some inevitable limitations, our preliminary data suggest that peak velocity and particularly VTI of Sm in PW-TDI can be considered as reliable, rapid and reproducible indicators of preserved LV systolic function. However, we are currently conducting another complementary study to compare PW-TDI of Sm in patients with LV systolic dysfunction with or without mitral regurgitation.
کلیدواژه‌های انگلیسی مقاله LEFT VENTRICULAR SYSTOLIC FUNCTION, TISSUE DOPPLER IMAGING
نویسندگان مقاله A.A DADGAR |
DEPARTMENT OF CARDIOLOGY, IMAM REZA (A.S.) HOSPITAL, MASHHAD UNIVERSITY OF MEDICAL SCIENCES, MASHHAD, IRAN

A. HAMEDANCHI |


H. BARAK POUR |


A. ARGHAMI |


نشانی اینترنتی http://journal.iha.org.ir/article_83961_66ebbbdd26c7ad9d9a99edad5f8013bb.pdf
فایل مقاله اشکال در دسترسی به فایل - ./files/site1/rds_journals/162/article-162-1424125.pdf
کد مقاله (doi)
زبان مقاله منتشر شده en
موضوعات مقاله منتشر شده
نوع مقاله منتشر شده
برگشت به: صفحه اول پایگاه   |   نسخه مرتبط   |   نشریه مرتبط   |   فهرست نشریات