Search Results - "Franz, Michael R."

Repolarization Alternans Reveals Vulnerability to Human Atrial Fibrillation by NARAYAN, Sanjiv M, FRANZ, Michael R, CLOPTON, Paul, PRUVOT, Etienne J, KRUMMEN, David E

“…The substrates for human atrial fibrillation (AF) are poorly understood, but involve abnormal repolarization (action potential duration [APD]). We hypothesized…”
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QRS micro-fragmentation as a mortality predictor by Hnatkova, Katerina, Andršová, Irena, Novotný, Tomáš, Britton, Annie, Shipley, Martin, Vandenberk, Bert, Sprenkeler, David J, Junttila, Juhani, Reichlin, Tobias, Schlögl, Simon, Vos, Marc A, Friede, Tim, Bauer, Axel, Huikuri, Heikki V, Willems, Rik, Schmidt, Georg, Franz, Michael R, Sticherling, Christian, Zabel, Markus, Malik, Marek

“…Fragmented QRS complex with visible notching on standard 12-lead electrocardiogram (ECG) is understood to represent depolarization abnormalities and to signify…”
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T-Wave Alternans, Restitution of Human Action Potential Duration, and Outcome by Narayan, Sanjiv M., MD, FRCP, FACC, Franz, Michael R., MD, PhD, Lalani, Gautam, MD, Kim, Jason, BS, Sastry, Ashwani, MD

“…T-Wave Alternans, Restitution of Human Action Potential Duration, and Outcome Sanjiv M. Narayan, Michael R. Franz, Gautam Lalani, Jason Kim, Ashwani Sastry We…”
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Rhythmic Aortic Contractions Induced by Electrical Stimulation In Vivo in the Rat by Sahibzada, Niaz, Mangel, Allen W, Tatge, Jaclyn E, Dretchen, Kenneth L, Franz, Michael R, Virmani, Renu, Gillis, Richard A

“…For over a century, the behavior of the aorta and other large arteries has been described as passive elastic tubes in which no active contraction occurs in the…”
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Atrial fibrillation: Can electrograms be interpreted without repolarization information? by Narayan, Sanjiv M., MD, PhD, FHRS, Zaman, Junaid A.B., MA, BMBCh, MRCP, Baykaner, Tina, MD, MPH, Franz, Michael R., MD, PhD, FHRS

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Autonomic modulation and antiarrhythmic therapy in a model of long QT syndrome type 3 by Fabritz, Larissa, Damke, Dierk, Emmerich, Markus, Kaufmann, Susann G., Theis, Kathrin, Blana, Andreas, Fortmüller, Lisa, Laakmann, Sandra, Hermann, Sven, Aleynichenko, Elena, Steinfurt, Johannes, Volkery, Daniela, Riemann, Burkhard, Kirchhefer, Uwe, Franz, Michael R., Breithardt, Günter, Carmeliet, Edward, Schäfers, Michael, Maier, Sebastian K.G., Carmeliet, Peter, Kirchhof, Paulus

“…Aims Clinical observations in patients with long QT syndrome carrying sodium channel mutations (LQT3) suggest that bradycardia caused by parasympathetic…”
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To the Editor— Propranolol, a β-adrenoreceptor blocker, prevents arrhythmias also by its sodium channel blocking effect by Fabritz, Larissa, MD, Franz, Michael R., MD, PhD, FHRS, Carmeliet, Edward, PhD, Kirchhof, Paulus, MD, FHRS

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Amiodarone prevents wave front-tail interactions in patients with heart failure: an in silico study by Gray, Richard A, Franz, Michael R

“…Amiodarone (AM) is an antiarrhythmic drug whose chronic use has proved effective in preventing ventricular arrhythmias in a variety of patient populations,…”
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Alternans of atrial action potentials during atrial flutter as a precursor to atrial fibrillation by NARAYAN, Sanjiv M, BODE, Frank, KARASIK, Pamela L, FRANZ, Michael R

“…The mechanisms underlying the transition of typical atrial flutter (Afl) to fibrillation (AF) remain unclear. We set out to test the hypothesis that Afl…”
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Global Endocardial Electrical Restitution in Human Right and Left Ventricles Determined by Noncontact Mapping by Yue, Arthur M., Franz, Michael R., Roberts, Paul R., Morgan, John M.

“…This study was aimed at evaluating global characteristics of electrical restitution in the human ventricle using noncontact mapping. Steep action potential…”
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Monophasic Action Potential Recordings in Humans by MOORE, HANS J., FRANZ, MICHAEL R.

“…Bridging basic and clinical electrophysiology has been facilitated by monophasic action potential recordings. The electrocardiogram is a useful clinical…”
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Gadolinium decreases stretch-induced vulnerability to atrial fibrillation by Bode, F, Katchman, A, Woosley, R L, Franz, M R

“…Atrial fibrillation (AF) is frequently associated with atrial dilatation caused by pressure or volume overload. Stretch-activated channels (SACs) have been…”
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Ventricular Fibrillation Induced by Stretch Pulse: Implications for Sudden Death Due to Commotio Cordis by BODE, FRANK, FRANZ, MICHAEL R., WILKE, IRIS, BONNEMEIER, HENDRIK, SCHUNKERT, HERIBERT, WIEGAND, UWE K.H.

“…Introduction: Nonpenetrating chest wall impact (commotio cordis) may lead to sudden cardiac death due to the acute initiation of ventricular fibrillation (VF)…”
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Action potential characterization in intact mouse heart: steady-state cycle length dependence and electrical restitution by Knollmann, Björn C, Schober, Tilmann, Petersen, Andreas O, Sirenko, Syevda G, Franz, Michael R

“…Transgenic mice have been increasingly utilized to investigate the molecular mechanisms of cardiac arrhythmias, yet the rate dependence of the murine action…”
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Comparative pharmacophysiology of vernakalant, ranolazine, and d -sotalol in canine pulmonary vein sleeve preparations: new flavors or same old taste? by Franz, Michael R., MD, PhD, FHRS, Singh, Steven N., MD

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A model for human action potential dynamics in vivo by Gray, Richard A, Franz, Michael R

“…Computational modeling based on experimental data remains an important component in cardiac electrophysiological research, especially because clinical data…”
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Intrathoracic Impedance Preceding Ventricular Tachyarrhythmia Episodes by MOORE, HANS J., PETERS, MATTHEW N., FRANZ, MICHAEL R., KARASIK, PAMELA E., SINGH, STEVEN N., FLETCHER, ROSS D.

“…Background: Heart failure is associated with ventricular tachyarrhythmias (VT/VF). Fluid accumulation during worsened heart failure may trigger VT/VF…”
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Bazett, Fridericia, or Malik? by Franz, Michael R., MD, PhD, FHRS

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Giant T―U Waves Precede Torsades de Pointes in Long QT Syndrome: A Systematic Electrocardiographic Analysis in Patients With Acquired and Congenital QT Prolongation by KIRCHHOF, Paulus, FRANZ, Michael R, BARDAI, Abdennasser, WILDE, Arthur M

“…This study sought to identify electrocardiographic (ECG) criteria that are associated with initiation of torsades de pointes (TdP) in patients with acquired…”
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Amiodarone and dronedarone: The worker bee and the drone? by Franz, Michael R., MD, PhD, FHRS, Singh, Steve N., MD

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