کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5613272 | 1577895 | 2007 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Assessment of Left Atrial Ejection Force in Hypertrophic Cardiomyopathy Using Real-time Three-dimensional Echocardiography
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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 study included 30 patients with hypertrophic cardiomyopathy (HCM) (obstructive and nonobstructive) and 15 control subjects. End-diastolic mitral annulus area (MAA3D) and mitral valve area (MVA3D) were measured by real-time 3-dimensional (3D) echocardiography. MVA2D and peak mitral inflow A wave velocity (V) were measured by 2-dimensional (2D) echocardiography. Left atrial ejection force (LA-EF) was calculated by 2D echocardiography and real-time 3D echocardiography using the formula: 0.5 Ã 1.06 Ã (MAA or MVA) Ã V2, where (1.06) is blood viscosity. LA-EF2D-MVA, LA-EF3D-MVA, LA-EF3D-MAA, and V were significantly higher in patients with HCM than control subjects (P < .001). LA-EF2D-MVA and LA-EF3D-MVA were lower than LA-EF3D-MAA in HCM only (P < .001). In obstructive HCM, LA-EF2D-MVA, LA-EF3D-MVA, LA-EF3D-MAA, and V were significantly higher than in nonobstructive HCM (P < .05). Left ventricular outflow tract gradient contributed independently to high LA-EF in obstructive HCM. We concluded that HCM is associated with higher LA-EF than normal, and higher in obstructive HCM than nonobstructive indicating a higher atrial workload that is reflected by LA-EF3D-MAA.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of the American Society of Echocardiography - Volume 20, Issue 6, June 2007, Pages 744-748
Journal: Journal of the American Society of Echocardiography - Volume 20, Issue 6, June 2007, Pages 744-748
نویسندگان
Ashraf M. MD, Osama I.I. MD, Marcel L. MD, Michelle MD, Wim B. MSc, Attila MD, Folkert J. MD,