کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
3015809 | 1182000 | 2009 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Mapas tridimensionales de impedancia para guiar el aislamiento circunferencial de las venas pulmonares en la fibrilación auricular paroxÃstica
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کلمات کلیدی
موضوعات مرتبط
علوم پزشکی و سلامت
پزشکی و دندانپزشکی
کاردیولوژی و پزشکی قلب و عروق
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چکیده انگلیسی
During circumferential pulmonary vein isolation, radiofrequency lesions are created in the transition zone between the left atrium and the pulmonary veins, outside the ostia, to avoid stenosis. Three-dimensional impedance maps were constructed for 25 patients with paroxysmal atrial fibrillation. In the first 15 patients, impedance was measured inside the pulmonary veins (165.4±7.5Ω), the ostium (141.6±7.3Ω) and the left atrium (131.09±8.3Ω). An impedance of 136Ω identified the outer limit of the atrium (area under the receiver operating characteristic curve, 0.85). In the subsequent 10 patients, a single operator who was blinded to the anatomic position of the catheter tip was able to determine, by impedance measurement alone, whether the point targeted for radiofrequency ablation was in the left atrium or the ostium of the pulmonary vein. The positive predictive value for identifying the left atrium was 91% and the negative predictive value was 73%. In patients with paroxysmal atrial fibrillation, threedimensional impedance mapping was helpful in guiding circumferential pulmonary vein isolation.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Revista Española de CardiologÃa - Volume 62, Issue 3, March 2009, Pages 315-319
Journal: Revista Española de CardiologÃa - Volume 62, Issue 3, March 2009, Pages 315-319
نویسندگان
Alonso Pedrote, Eduardo Arana-Rueda, Lorena GarcÃa-Riesco, Adriano Jiménez-Velasco, Juan Sánchez-Brotons, José M. Arizón-Muñoz, José M. Fernández-Pérez, Manuel Frutos-López,