نتایج جستجو برای: vt

تعداد نتایج: 6535  

2017
Kazuo Sakamoto Masatsugu Nozoe Yoshitomo Tsutsui Nobuhiro Suematsu Toru Kubota Masanori Okabe Yusuke Yamamoto

Cardiac magnetic resonance imaging (MRI) is a useful tool for detecting the arrhythmogenic substrate in cardiac sarcoidosis. We herein present a case of bipolar radiofrequency catheter ablation for ventricular tachycardia (VT) complicated with cardiac sarcoidosis, guided by pre-procedural cardiac MRI. Neither echocardiography nor endocardial voltage mapping suggested a septal VT substrate. Howe...

Journal: :Circulation 1999
J S Steinberg A Gaur R Sciacca E Tan

BACKGROUND The de novo occurrence of sustained ventricular tachycardia (VT) after CABG has been described, but the incidence, mortality rate, long-term follow-up, and mechanism are not well defined. METHODS AND RESULTS This prospective study enrolled consecutive patients undergoing CABG at a single institution. Patients were followed up for the development of sustained VT, and a detailed anal...

Journal: :Journal of the American College of Cardiology 2001
D G Wyse P L Friedman M A Brodsky K J Beckman M D Carlson A B Curtis A P Hallstrom M H Raitt B L Wilkoff H L Greene

OBJECTIVES This study evaluated the prognosis of patients resuscitated from ventricular tachycardia (VT) or ventricular fibrillation (VF) with a transient or correctable cause suspected as the cause of the VT/VF. BACKGROUND Patients resuscitated from VT/VF in whom a transient or correctable cause has been identified are thought to be at low risk for recurrence and often receive no primary tre...

Journal: :Circulation 1989
R Lemery P Brugada P D Bella T Dugernier A van den Dool H J Wellens

This report describes the clinical, laboratory, and electrophysiologic features of 52 patients with ventricular tachycardia (VT) who had no clinical evidence of heart disease. The mean age of patients was 36 years, cardiovascular collapse occurred in 18 patients (35%), and exercise-related symptoms were present in 24 of 49 patients (49%). There were 20 patients with sustained monomorphic VT, 11...

ژورنال: کومش 2001
مقدسی, حبیب اله, وزیر نظامی, محسن,

سابقه و هدف: یکی از مهمترین مشکلات بیمارانی که نیازمند میرنگوتومی و گذاشتن لوله های تمپانوستومی (Vt ،Ventilation tube) هستند دفع سریع و زودرس آنها می باشد. این تحقیق به منظور بررسی تاثیر محل قرار دادن Vt در پرده صماخ بر سرعت دفع آنها، در بخش گوش و حلق و بینی بیمارستان لقمان انجام گرفت. مواد و روش ها: 35 بیمار مبتلا به اتیت میانی مزمن توام با تجمع مایع دو طرفه مورد مطالعه قرار گرفتند. برای همه ب...

Journal: :Journal of the American College of Cardiology 2006
James P Daubert Wojciech Zareba W Jackson Hall Claudio Schuger Andrew Corsello Angel R Leon Mark L Andrews Scott McNitt David T Huang Arthur J Moss

UNLABELLED In the Multicenter Automatic Defibrillator Implantation Trial (MADIT) II, implantable cardioverter-defibrillator (ICD)-randomized patients underwent electrophysiologic testing. Both inducible and noninducible patients received an ICD. We correlated inducibility with the occurrence of subsequent ventricular tachycardia (VT) or ventricular fibrillation (VF). Intracardiac ICD electrogra...

2017
Hung-Yu Chang Li-Wei Lo Yu-Hui Chou Wei-Lun Lin Yenn-Jiang Lin Wei-Hsian Yin An-Ning Feng Shih-Ann Chen

Background: Right ventricular outflow tract ventricular tachycardia (VT) and ventricular premature complexes (VPCs) are characterized as benign in entity with ECG morphology showing LBBB pattern and inferior axis. Pathogenic mechanisms in the genesis of RVOT VT/VPC remain largely unknown. We aimed to investigate the neural mechanism in RVOT VT/VPC in canine model. Methods: Twelve mongrel dogs (...

Journal: :The Journal of clinical investigation 1984
H Garan J N Ruskin

This study was undertaken to investigate the mechanism underlying sustained monomorphic ventricular tachycardia (VT) in late experimental canine myocardial infarction. The hypothesis that sustained and "organized" continuous electrical activity (CEA) displaying a reproducible pattern with recurrent components recorded by bipolar endocardial, intramural, or epicardial electrodes in 10 animals du...

Journal: :Circulation 1987
C D Swerdlow G H Bardy J McAnulty J Kron J T Lee E Graham J Peterson H L Greene

We prospectively studied 196 consecutive survivors of out-of-hospital ventricular fibrillation (VF) not associated with acute myocardial infarction and 46 consecutive, control patients without prior ventricular arrhythmias. Programmed stimulation included two extrastimuli (S3 protocol) in all patients and three extrastimuli (S4 protocol) in the last 140 study patients and in all control patient...

Journal: :Circulation 2005
Nicolas Sadoul Ralph Mletzko Frédéric Anselme Robert Bowes Wolfgang Schöls Claude Kouakam Gaëlle Casteigneau Raffaele Luise Nicolas Iscolo Etienne Aliot

BACKGROUND This study aims to assess the incidence and clinical relevance of slow ventricular tachycardia (VT) and the effectiveness and/or deleterious effects of antitachycardia pacing in slow VT in implantable cardioverter-defibrillator recipients. METHODS AND RESULTS This multicenter prospective randomized study included 374 patients (326 men) without prior history of slow VT (<148 bpm) im...

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