Andreas Bollmann

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This study assesses a technique for quantifying the frequency spectrum of atrial fibrillation (AF) using the surface electrocardiogram. Electrocardiograhic recordings were obtained in 61 patients during AF. After bandpass filtering, the QRST complexes were subtracted using a template-matching algorithm. The resulting fibrillatory baseline signal was(More)
Atrial fibrillation (AF) is the most common arrhythmia encountered in clinical practice. Neither the natural history of AF nor its response to therapy are sufficiently predictable by clinical and echocardiographic parameters. Atrial fibrillatory frequency (or rate) can reliably be assessed from the surface electrocardiogram (ECG) using digital signal(More)
Atrial fibrillation (AF) is the most common arrhythmia encountered in clinical practice. Neither the natural history of AF nor its response to therapy is sufficiently predictable by clinical and echocardiographic parameters. The purpose of this article is to describe technical aspects of novel electrocardiogram (ECG) analysis techniques and to present(More)
OBJECTIVE Automatic analysis of the frequency content of the fibrillatory baseline on the surface ECG accurately reflects the average rate of atrial fibrillation (AF). This frequency measurement correlates with the behavior of AF and predicts the response to administration of ibutilide, a new antiarrhythmic drug. Neither the temporal pattern of fibrillatory(More)
AIMS To compare the acute and the 6 month outcome of catheter ablation of atrial fibrillation (AF) using irrigated tip magnetic catheter and remote magnetic cathter navigation (RMN) with manual catheter navigation (MCN) in patients with paroxysmal and persistent AF. METHODS AND RESULTS In this retrospective analysis 356 patients (235 male, mean age: 57.9(More)
1Grupo de Investigación en Bioingeneŕıa, Electrónica y Telemedicina, Departamento de Ingeneŕıa Electrónica, Escuela Politécnica Superior de Gandı́a, Universidad Politécnica de Valencia (UPV), Ctra. Nazaret-Oliva, 46730 Gandı́a, Spain 2Communications Technology Group, Aragón Institute of Engineering Research, University of Zaragoza, 50018 Zaragoza, Spain 3(More)
INTRODUCTION Frequency analysis of fibrillation (FAF) and time-frequency analysis (TFA) were developed recently in order to quantify atrial electrical remodeling in atrial fibrillation (AF) from the surface ECG. This article describes the experience with these two different frequency analysis techniques in consecutive AF patients and discusses possible(More)
BACKGROUND Pulmonary vein (PV) isolation has become a cornerstone for ablation of atrial fibrillation (AF). Circular mapping catheter (CMC)-guided techniques for detection of lesion gaps are challenging. OBJECTIVE The present study describes a new concept of circumferential PV ablation aiming at bidirectional conduction block based on simultaneous pacing(More)
BACKGROUND Data on the outcomes of ventricular tachycardia (VT) ablation in nonischemic dilated cardiomyopathy (NIDCM) are insufficient. The Heart Center of Leipzig VT (HELP-VT) study was conducted prospectively to compare outcomes after radiofrequency catheter ablation of VT in patients with NIDCM compared with ischemic cardiomyopathy (ICM). METHODS AND(More)
AIMS Identifying suitable candidates for circumferential left atrial pulmonary vein ablation (CPVA). CPVA is widely used as an ablation strategy in patients with atrial fibrillation (AF). Understanding the predictors of long-term success of single catheter ablation procedure of AF based on CPVA can help to identify those patients who have a high risk of(More)