Signal-Averaged Electrocardiography as a Noninvasive Tool for Evaluating the Outcomes After Radiofrequency Catheter Ablation of Ventricular Tachycardia in Patients With Ischemic Heart Disease
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چکیده
منابع مشابه
Signal-Averaged Electrocardiography as a Noninvasive Tool for Evaluating the Outcomes After Radiofrequency Catheter Ablation of Ventricular Tachycardia in Patients With Ischemic Heart Disease
Since the late 1980s, the signal-averaged electrocardiography (SAECG) has been used for assessment of the risk for sudden cardiac death in patients after myocardial infarction. It is believed that the late potentials (LPs) in the terminal portion of the averaged QRS complex represent the slow and inhomogeneous intraventricular conduction as a consequence of the myocardial scarring. The tissue d...
متن کاملTreatment of ventricular tachycardia by transcatheter radiofrequency ablation in patients with ischemic heart disease.
BACKGROUND Recurrent sustained ventricular tachycardia (VT) is not responsive to antiarrhythmic drugs in the majority of patients, who therefore need therapy with nonpharmacological methods. We evaluated prospectively the feasibility, safety, and efficacy of transcatheter radiofrequency (RF) ablation of VT in 21 selected patients with ischemic heart disease and VT. METHODS AND RESULTS Twenty-...
متن کاملRadiofrequency catheter ablation for ventricular tachycardia.
Radiofrequency energy was used for the ablation of chronic recurrent ventricular tachycardia (VT) in 58 patients who were divided into two groups: 44 cases with structural myocardial disease (36 men and 8 women: mean age 55 years; range: 14 to 85 years) with an average left ventricular ejection fraction of 38% (range: 15 to 80%): these patients had myocardial infarction (28 cases), arrhythmogen...
متن کاملCatheter ablation of ventricular tachycardia in patients with ischemic heart disease.
Radiofrequency ablation is a valuable adjunctive therapy to implantable defibrillators in patients with recurrent monomorphic ventricular tachycardia (VT) after myocardial infarction. Episodes of VT are markedly reduced in most patients, and the major complications are less than 5%. Newer approaches allow successful ablation even when VT is unstable, and when multiple VTs are present. Epicardia...
متن کاملsignal-averaged electrocardiography in patients with advanced heart failure: a better indicator of left ventricular enlargement compared with conventional electrocardiography
background : the signal-averaged electrocardiography is a noninvasive method to evaluate the presence of the potentials generated by tissues activated later than their usual timing in the cardiac cycle. the purpose of this study was to demonstrate the correlation between the filtered qrs duration obtained via the signal-averaged electrocardiography and left ventricular dimensions and volumes an...
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ژورنال
عنوان ژورنال: Circulation: Arrhythmia and Electrophysiology
سال: 2016
ISSN: 1941-3149,1941-3084
DOI: 10.1161/circep.115.003673