Relationship Between ST-Segment Morphology and Conduction Disturbances Detected by Signal-Averaged Electrocardiography in Brugada Syndrome
نویسندگان
چکیده
منابع مشابه
Brugada syndrome-like ST-segment elevation increase exacerbated by vomiting.
The patient was a 53 year-old male who had 3 syncopal episodes over a 6-month period. In the electrophysiological study, ventricular fibrillation (VF) was repeatedly induced by the ventricular extrastimulus method. Intravenous pilsicainide was administered, and the J-point and ST-segment in the right precordial leads became slightly elevated just following drug administration. Five min later, t...
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OBJECTIVES We sought to demonstrate the electrophysiologic (EP) mechanism of the ST-T change in Brugada syndrome. BACKGROUND Brugada syndrome is characterized by various electrocardiographic manifestations (e.g., right bundle branch block, ST-segment elevation, and terminal T-wave inversion in the right precordial leads) and sudden cardiac death caused by ventricular fibrillation. Direct evid...
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AIMS Signal averaged electrocardiography is a noninvasive method to evaluate the presence of the potentials that are generated by tissues, activated later than their usual timing in the cardiac cycle. The purpose of this study was to demonstrate the correlation of data obtained via signal averaged electrocardiography and left ventricular dyssynchrony. METHODS We included the patients with adv...
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BACKGROUND Signal-averaged ECG (SAECG) reproducibility is reported to have a component that is independent of residual noise. Methods and Results-In group 1, multiple paired SAECGs were obtained to noise levels of 0.3+/-0.1 and 0.5+/-0.2 microV. For the 0.5- and 0. 3-microV noise recordings, QRS duration (QRSd) was 101.2+/-11.3 and 104.6+/-9.6 ms, respectively (P<0.0001), and the differences in...
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Abnormal signal averaged electrocardiograms (SAECGs) and late ventricular potentials (LVPs) are predictors of sudden cardiac death. The present study hypothesized that SAECGs are impaired in hypertensive patients with renal failure. A total of 30 patients with grade 2 hypertension underwent SAECG. Serum level of creatinine and glomerular filtration rate (GFR) were also assessed. At least one SA...
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ژورنال
عنوان ژورنال: Annals of Noninvasive Electrocardiology
سال: 2003
ISSN: 1542-474X,1082-720X
DOI: 10.1046/j.1542-474x.2003.08106.x