کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
2958079 1178214 2010 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Optimal Right Ventricular Pacing Site from the Perspective of QRS Duration, Heart Function and the Configuration of 12-lead Electrocardiogram
موضوعات مرتبط
علوم پزشکی و سلامت پزشکی و دندانپزشکی کاردیولوژی و پزشکی قلب و عروق
پیش نمایش صفحه اول مقاله
Optimal Right Ventricular Pacing Site from the Perspective of QRS Duration, Heart Function and the Configuration of 12-lead Electrocardiogram
چکیده انگلیسی

Introduction: It has become clear that the onset of heart failure is closely linked to right apex pacing, which lengthens the QRS duration and evokes discoordinate contraction of the left ventricle (LV). Currently, it is thought that the site inducing the shortest QRS duration is optimal for pacing.Objectives: The purpose of this study was to ascertain the pacing site inducing the shortest QRS duration and to examine the configuration of the 12-lead electrocardiogram and heart function while pacing at this site.Methods: Nine patients with normal heart function were enrolled. Pacing at right ventricular outflow, mid-interventricular septum (MS), and right ventricular apex was performed. QRS duration was measured and the configuration of the 12-lead electrocardiogram changed by pacing was studied. Output and LV dp/dt were calculated at each pacing site.Results: QRS duration became shorter with MS pacing and the pacing lead situated at the periphery of the coronary sinus and turned in a posterior direction. The configuration of the 12-lead electrocardiogram showed an Rs or rS pattern with II, III, and aVF leads. Output and LV dp/dt showed a tendency to increase with MS pacing.Conclusion: It is thought that mid-interventricular septum pacing shortens the QRS duration.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Arrhythmia - Volume 26, Issue 2, 2010, Pages 119-126