The 'Second Factor' of tachycardia-induced atrial remodeling
نویسندگان
چکیده
منابع مشابه
Angiotensin-(1–7) attenuates atrial tachycardia-induced sympathetic nerve remodeling
INTRODUCTION The effect of Angiotensin-(1-7) (Ang-(1-7)) on atrial autonomic remodeling is still unknown. We hypothesized that Ang-(1-7) could inhibit sympathetic nerve remodeling in a canine model of chronic atrial tachycardia. MATERIALS AND METHODS Eighteen dogs were randomly assigned to sham group, pacing group and Ang-(1-7) group. Rapid atrial pacing was maintained for 14 days in the paci...
متن کاملAtrial ionic remodeling induced by atrial tachycardia in the presence of congestive heart failure.
BACKGROUND Atrial fibrillation (AF) and congestive heart failure (CHF) produce discrete forms of atrial ionic remodeling. The in vivo effects of atrial tachycardia (AT) remodeling are altered by CHF. This study evaluated underlying mechanisms at the level of ionic remodeling. METHODS AND RESULTS We studied 4 groups of dogs: (1) unpaced controls (CTLs); (2) CHF caused by 2-week ventricular tac...
متن کاملConsequences of atrial tachycardia-induced remodeling depend on the preexisting atrial substrate.
BACKGROUND All animal studies of atrial tachycardia (AT) remodeling to date have been performed in normal hearts, but clinical atrial fibrillation (AF) often occurs in the setting of heart disease. This study evaluated the effects of a pathological AF substrate on AT-induced remodeling. METHODS AND RESULTS Fourteen control dogs, 12 AT-only dogs (400 bpm for 1 week), 14 congestive heart failur...
متن کاملfactor influencing the adoption of internet banking
دوره مشترک کارشناسی ارشد بازاریابی و تجارت الکترونیک دانشگاه تربیت مدرس_ دانشگاه تکنولوژی lule? چکیده پایان نامه عوامل موثر بر پذیرش اینترنت بانک توسط مشتریان پیشرفت فناوری اطلاعات و ارتباطات و به طور خاص رشد اینترنت جهت تراکنش های معاملات بازرگانی، تاثیر بسیار عمیقی در صنعت بانکداری داشته است.این در حالی ست که نفوذ بانکداری اینترنتی در کشورهای در حال توسعه بسیار کندتر از نفوذ آن ...
15 صفحه اولImportance of refractoriness heterogeneity in the enhanced vulnerability to atrial fibrillation induction caused by tachycardia-induced atrial electrical remodeling.
BACKGROUND Rapid atrial activation causes electrical remodeling that promotes the occurrence and the maintenance of atrial fibrillation (AF). Although remodeling has been shown to alter electrophysiological variables, the spatial uniformity of these changes is unknown. METHODS AND RESULTS Dogs subjected to rapid atrial pacing (400 bpm) for 24 hours (n=12) were compared with sham-operated dogs...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Cardiovascular Research
سال: 2000
ISSN: 0008-6363
DOI: 10.1016/s0008-6363(00)00067-5