J. Sperzel

ABSTRACTS (2009)

Abdelwahab, A., Gardner, M., Parkash, R., Basta, M., Sapp, J., Veltmann, C., ...

Introduction: Scar-related ventricular tachycardia (VT) is often unmappable. Data regarding the outcomes of ablation for mappable vs unmappable VT are lacking. Methods: Catheter ablation of...

Temporary third-degree atrioventricular block in a case of apical ballooning syndrome (2006)

Nef, H. M., Mollmann, H., Sperzel, J., Weber, M., Bruck, H., Hamm, C. W., ...

Apical ballooning is characterized by severe but reversible contractile dysfunction. The causative factor and the pathomechanism remain unknown. Several arrhythmias are reported to occur in...

921 Differential effects on systolic and diastolic function after temporary suspension of long-term cardiac resynchronization therapy (2006)

Brandt, R.R., Sperzel, J., Pitschner, H.F., Peters, M., Berkowitsch, A., Hamm, C.W.

9. Pacemakers: Clinical Results, Practical Aspects and Late-Break Clinical Trials: 9.2 Automatic Adjustment of the Response Factor Approaching Physiology (2005)

Sperzel, J., Gadler, F., Stertmann, F., Fröhlig, G., Kubler, L., Daum, D., ...

Objective Adaptive-rate pacemakers are designed to restore appropriate heart rates for patients during daily life. Wilkoff describes a linear relationship between heart rate reserve and workload...

9. Pacemakers: Clinical Results, Practical Aspects and Late-Break Clinical Trials: 9.3 Effects of Ventricular Automatic Capture on Pacemaker Longevity (2005)

Sperzel, J., Kennergren, C., Gill, J., Biffi, M., Sathaye, A.

Objective Ventricular Automatic Capture (VAC) is thought to increase device longevity by reducing the pacing safety margin. We evaluated the effect of the GUIDANT VAC technology on longevity in dual...

9. Pacemakers: Clinical Results, Practical Aspects and Late-Break Clinical Trials: 9.5 Far-Field Signal Reduction (FSR) Leads Minimize Atrial Oversensing and Inappropriate Mode Switches (2005)

Sperzel, J., Yang, M., Yu, C.M., Fung, W.H., Chan, Y.S., Fröhlig, G., ...

Objectives A Far-Field Signal Reduction (FSR) lead, essentially based on tip-to-ring electrode spacing and surface area optimization, has been demonstrated to be effective in reducing far field...

9. Pacemakers: Clinical Results, Practical Aspects and Late-Break Clinical Trials: 9.6 Clinical Feasibility Study of Far-Field Signal Reduction (FSR) Pacing Leads in the Right Atrium (2005)

Yu, C.M., Yang, M., Sperzel, J., Fung, W.H., Chan, Y.S., Fröhlig, G., ...

Objectives The efficacy of the Far-Field Signal Reduction (FSR) leads, based on optimization of the tip-to-ring electrode spacing and surface areas, has been demonstrated by chronic animal studies...

22. Miscellanea: 22.4 Clinical Outcome of a New Automatic Atrial Threshold Testing Algorithm (2005)

Sperzel, J., Biffi, M., Butter, C., Garg, A., Accinelli, S., Koenig, A., ...

Purpose was to test a new Atrial Auto Threshold (AAT) algorithm at implant in patients (pts) with acute or chronic atrial leads. The algorithm is based upon independent atrial pacing and evoked...

467 Differential effects on systolic and diastolic function after temporary suspension of long-term cardiac resynchronization therapy (2005)

Brandl, R.R., Reiner, C., Arnold, R., Sperzel, J., Pitschner, H.F., Harem, C.W.

Comparison of generic health survey SF-36 and arrhythmia related symptom severity check list in relation to post-therapy AF recurrence (2003)

Berkowitsch, A., Neumann, T., Kurzidim, K., Reiner, C., Kuniss, M., Siemon, G., ...

Aim The effect of applied therapy on quality of life (QoL) in patients with atrial fibrillation (AF) was investigated in recent studies. However, no information on clinical relevance of QoL assessing...

Diagnostic value of onset-recordings and marker annotations in dual chamber pacemaker stored electrograms (2003)

Nowak, B., Sperzel, J., Rauscha, F., Mont, L., Alzueta, J., Senden, P. J., ...

Aims Stored electrograms (EGM) have recently been introduced into pacemaker therapy. New generation devices offer the possibility to store the onset of the EGM (several seconds preceding storage...

Automatic capture verification in ICD lead systems using intracardiac ventricular evoked response and reduced coupling capacitance (2003)

Sperzel, J., Pitschner, H. F., Schwarz, T., König, A., Zhu, Q., Neuzner, J.

Aim Intracardiac ventricular evoked-response (ER) signals detected by implanted cardioverter defibrillator (ICD) lead systems were investigated for automatic capture verification (AC). Method ER...

548 Contractile response and mitral regurgitation after withdrawl of biventricular pacing (2003)

Brandt, R. R., Reiner, R., Sperzel, J., Pitschner, H. F., Hamm, C. W.

Dual-coil vs single-coil active pectoral implantable defibrillator lead systems: defibrillation energy requirements and probability of defibrillation success at multiples of the defibrillation energy requirements (2001)

Schulte, B., Sperzel, J., Carlsson, J., Schwarz, T., Ehrlich, W., Pitschner, H. F., ...

Aims The aim of the study was to compare the defibrillation energy requirements and the probability of successful defibrillation at multiples of the minimum defibrillation energy requirements in...

Detection of ventricular fibrillation in implantable defibrillators with automatic gain control amplifiers: Effects of programming sensitivity (2000)

Schulte, B., Sperzel, J., Schwarz, T., Pitschner, H.F., Strupp, G., Neuzner, J.

Aims In newer implantable cardioverter–defibrillators with automatic gain control amplifiers the maximum possible sensitivity is programmed with the aim of securing optimal detection of ventricular...

Bipolar atrial sensing thresholds in sinus rhythm and atrial tachyarrhythmias: A comparative analysis in patients with DDDR pacemakers (1999)

Neuzner, J., Sperzel, J., Pitschner, H. F., Schwarz, T., Ehrlich, W., Schulte, B., ...

Automatic mode switching (AMS) function in dual chamber pacemakers depends on adequate detection of atrial tachyarrhythmias. There are few data on showing how intra-operative atrial signal...