کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
9971177 1577922 2005 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Left atrial appendage assessment by second harmonic transthoracic echocardiography after an acute ischemic neurologic event
موضوعات مرتبط
علوم پزشکی و سلامت پزشکی و دندانپزشکی کاردیولوژی و پزشکی قلب و عروق
پیش نمایش صفحه اول مقاله
Left atrial appendage assessment by second harmonic transthoracic echocardiography after an acute ischemic neurologic event
چکیده انگلیسی
Although second harmonic (sh) imaging is widely available in most contemporary ultrasound systems, its accuracy to evaluate left atrial appendage (LAA) morphology and function remains poorly characterized. We conducted a cross-sectional survey of patients with acute ischemic neurologic conditions (n = 51) who underwent both transesophageal and transthoracic echocardiography (TTE) to explore the performance of sh in LAA assessment. Doppler and LAA area evaluation by sh TTE were feasible in most patients (98%). We observed positive and significant associations between sh TTE and transesophageal echocardiography assessment of LAA peak emptying velocities (r = 0.63, P < .001) and LAA maximum area (r = 0.73, P < .001). In addition, all patients (n = 7) with LAA thrombus or spontaneous contrast had peak emptying velocities less than 50 cm/s on sh TTE (negative predictive value of 100%). In multivariate analysis, LAA peak emptying velocity remained independently associated with LAA thrombus or contrast. In conclusion, sh TTE can provide valuable and clinically relevant information of LAA morphology and dynamics.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of the American Society of Echocardiography - Volume 18, Issue 3, March 2005, Pages 206-212
نویسندگان
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