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Pacemaker-mediated tachycardia initiated by an atrioventricular search algorithm to minimize right ventricular pacing
27 January 2012
S. Serge Barold, Roland X. Stroobandt
Abstract: We report the initiation of pacemaker-mediated tachycardia by a St Jude implantable cardioverter-defibrillator with a programmed Ventricular Intrinsic Preference algorithm used for minimizin...
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Correlations among the frequencies of atrial activity on the surface electrocardiogram, intracardiac atrial electrograms, and the atrial effective refractory period in patients with atrial fibrillation
27 January 2012
Merritt H. Raitt, Walter Kusumoto
Abstract: Background: The frequency of surface atrial electrocardiogram (ECG) depolarization has been postulated to reflect the atrial effective refractory period (AERP). Methods: Frequency analysis o...
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Diagnosis and mortality prediction in pulmonary hypertension: The value of the electrocardiogram-derived ventricular gradient
24 January 2012
Roderick W.C. Scherptong, Ivo R. Henkens, Gijs F.L. Kapel, Cees A. Swenne, Klaas W. van Kralingen, Menno V. Huisman, Annemie J.M. Schuerwegh, Jeroen J. Bax, Ernst E. vd Wall, Martin J. Schalij, Hubert W. Vliegen
Abstract: Purpose: The aim of this study was to investigate the use of the electrocardiogram-derived ventricular gradient, projected on the x-axis (VGx), for detection of pulmonary hypertension (PH) a...
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T-wave alternans and the confounding role of the T-wave amplitude
20 January 2012
John E. Madias
Abstract: The interpretation of the electrocardiogram (ECG) T-wave alternans (TWA) as positive or negative depends on its magnitude, regardless whether the frequency domain or the time domain analysis...
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Long-term results of slow pathway ablation in patients with atrioventricular nodal reentrant tachycardia: simple approach
19 January 2012
Francisco Femenía, Mauricio Arce, Martín Arrieta, Jorge Palazzolo, Emilce Trucco
Abstract: Aims: The aim of this study was to report the short- and long-term results of slow pathway radiofrequency (RF) ablation in patients with atrioventricular (AV) nodal reentrant tachycardia (AV...
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