نتایج جستجو برای: atrial flutter
تعداد نتایج: 90729 فیلتر نتایج به سال:
IT HAS BEEN KNOWN for years that the more serious cardiac arrhythmias, atrial fibrillatiol, atrial flutter,1 and even ventrieular tachyeardia,2 can exist in persons withouLt demonstrable evidence of heart disease. One of the initial comprehensive reviews of this phenomen-on was that of Orgain, Wolff, aind White1 in 1936, who reported 47 individuals presentinig uncomplicated atrial fibrillation ...
To cite: Nam MCY, Best L, Greaves K, et al. BMJ Case Rep Published online: [please include Day Month Year] doi:10.1136/bcr-2015214048 DESCRIPTION An 82-year-old man with previous bioprosthetic aortic valve replacement for aortic stenosis had a routine ECG (figure 1). This was thought to represent an atrial tachycardia with cycle length 280 ms and 3:1 atrioventricular response. A diagnosis of at...
A new neural network system for classification of the cardiac rhythm is presented in this paper. The system is composed of two neural network classifiers : a morphological classifier cascaded to a timing classifier. While the morphological classifier classify the P and QRS complexes into normal and/or abnormal beats, the timing classifier takes as inputs the information of the morphological cla...
Typical atrial flutter, as referred to in this article, includes both the counterclockwise and the clockwise form of cavotricuspid isthmus-dependent right atrial flutter. The counterclockwise form is the most common and characterized by a stereotypical surface ECG pattern showing negative sawtooth flutter waves in II, III and aVF at a rate between 200–350 beats.min. This surface ECG morphology ...
BACKGROUND Atrial arrhythmias occur commonly after cardiac surgery and are a cause of significant morbidity and increased hospital costs, yet there is no well-studied treatment strategy to deal with them expeditiously. The purpose of this study was to determine the efficacy and safety of ibutilide fumarate, an approved drug for the rapid conversion of atrial fibrillation and flutter, in patient...
BACKGROUND Radiofrequency catheter ablation of atrial fibrillation (AF) guided by complex fractionated atrial electrograms has been reported to eliminate AF in a large proportion of patients. However, only a small number of patients with chronic AF have been included in previous studies. METHODS AND RESULTS In 100 patients (mean age, 57+/-11 years) with chronic AF, radiofrequency ablation was...
INTRODUCTION The purpose of this study was to evaluate the inducibility of atrial fibrillation in patients with an accessory atrioventricular connection (AAVC) and to determine if the inducibility of atrial fibrillation is altered after successful radiofrequency catheter ablation of the AAVC. METHODS AND RESULTS Thirty-seven patients with an AAVC and 36 control patients were prospectively eva...
AIMS Catheter ablation of the inferior vena cava-tricuspid annulus isthmus and continuation of antiarrhythmic drug therapy have been shown to be an effective hybrid therapy for atrial flutter which results from antiarrhythmic drug treatment of atrial fibrillation. The aim of this study was to determine the risk factors for recurrence of atrial fibrillation in patients undergoing hybrid therapy ...
BACKGROUND Intra-atrial course of the right coronary artery is a rare anomaly. The recognition of this entity is crucial to avoid potential hazards related to vessel injury during interventional procedures such as right heart catheterization, pacemaker implantation, invasive electrophysiology testing or atrial flutter ablation. CASE REPORT We present a case of a 62-year old female with paroxy...
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