کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1761012 | 1019630 | 2013 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Worsening Left Ventricular Apical Peak Strain Early After Right Ventricular Pacing
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
آکوستیک و فرا صوت
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چکیده انگلیسی
We aimed to determine the effect of short-term right ventricle pacing (RV) on left ventricle (LV) mechanics using speckle tracking analysis. Conventional echocardiography and two-dimensional strain imaging was studied in 38 patients, mean age 81.6 ± 7.0, that had undergone pacemaker placement and were greater than 90% ventricularly paced. Mean duration of 24 months of RV pacing resulted in a significant decline in: LV apical diastolic rotational velocities (â59.0 ± â38.9 °/s to â28.0 ± â11.5 °/s, p 0.02), peak strain in the LV apical septal wall (â15.6 ± 8.5 to â13.5 ± 7.6, p 0.02), peak strain in LV apical lateral wall (â13.4 ± 8.9 to â11.4 ± 7.3, p 0.02). Thus, with only 24 months of RV pacing, there was a significant decline in peak strain of the LV apex and in apical diastolic rotational velocity that could account for eventual decline in left ventricular function.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Ultrasound in Medicine & Biology - Volume 39, Issue 2, February 2013, Pages 261-268
Journal: Ultrasound in Medicine & Biology - Volume 39, Issue 2, February 2013, Pages 261-268
نویسندگان
Nishath Quader, Uzma Jalal, Serag Raslan, Komandoor Srivathsan, Susan Wilansky, Samuel Unzek, Krishnaswamy Chandrasekran, Farouk Mookadam,