Ronald D Berger

Professor

1983 …2019
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Research Output 1983 2019

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Article
2001

Broken fractals: Where's the break?

Berger, R. D., 2001, In : Journal of Cardiovascular Electrophysiology. 12, 1, p. 33-35 3 p.

Research output: Contribution to journalArticle

Fractals
Adrenergic beta-Antagonists
Linear Models
Electrocardiography
Heart Failure

Electrical induction of ventricular fibrillation for resuscitation from postcountershock pulseless and asystolic cardiac arrests

Leng, C. T., Berger, R. D., Calkins, H., Lardo, A. C., Paradis, N. A. & Halperin, H. R., Aug 7 2001, In : Circulation. 104, 6, p. 723-728 6 p.

Research output: Contribution to journalArticle

Advanced Cardiac Life Support
Ventricular Fibrillation
Heart Arrest
Resuscitation
Self-Help Groups

Erratum: (Circulation (2000) 102 (3053-3059))

Nelson, G. S., Berger, R. D., Fetics, B. J., Talbot, M., Spinelli, J. C., Hare, J. M. & Kass, D. A., Jan 23 2001, In : Circulation. 103, 3, p. 476 1 p.

Research output: Contribution to journalArticle

Laser ablation of the pulmonary veins by using a fiberoptic balloon catheter: Implications for treatment of paroxysmal atrial fibrillation

Fried, N. M., Tsitlik, A., Rent, K. C., Berger, R. D., Lardo, A. C., Calkins, H. & Halperin, H. R., 2001, In : Lasers in Surgery and Medicine. 28, 3, p. 197-203 7 p.

Research output: Contribution to journalArticle

Pulmonary Veins
Laser Therapy
Atrial Fibrillation
Catheters
Atrial Appendage
Defibrillators
Tricuspid Valve
Coronary Sinus
Heart Diseases
Myocardium
Subclavian Vein
Defibrillators
Phlebography
Head
Safety

Usefulness of magnesium sulfate in stabilizing cardiac repolarization in heart failure secondary to ischemic cardiomyopathy

Ince, C., Schulman, S. P., Quigley, J. F., Berger, R. D., Kolasa, M., Ferguson, R., Silver, B. & Haigney, M. C. P., Aug 1 2001, In : The American Journal of Cardiology. 88, 3, p. 224-229 6 p.

Research output: Contribution to journalArticle

Magnesium Sulfate
Cardiomyopathies
Heart Failure
Magnesium
Heart Rate
2000

Analysis of the pattern of initiation of sustained ventricular arrhythmias in patients with implantable defibrillators

Taylor, E., Berger, R. D., Hummel, J. D., Dinerman, J. L., Kenknight, B., Arria, A. M., Tomaselli, G. & Calkins, H., 2000, In : Journal of Cardiovascular Electrophysiology. 11, 7, p. 719-726 8 p.

Research output: Contribution to journalArticle

Implantable Defibrillators
Cardiac Arrhythmias
Ventricular Tachycardia
Heart Diseases
Premature Cardiac Complexes

Cardiopulmonary resuscitation with a hydraulic-pneumatic band

Halperin, H. R., Berger, R. D., Chandra, N., Ireland, M., Leng, C., Lardo, A. & Paradis, N., 2000, In : Critical Care Medicine. 28, 11 SUPPL.

Research output: Contribution to journalArticle

Cardiopulmonary Resuscitation
Thorax
Atrial Pressure
Pressure
Perfusion

Left ventricular or biventricular pacing improves cardiac function at diminished energy cost in patients with dilated cardiomyopathy and left bundle-branch block

Nelson, G. S., Berger, R. D., Fetics, B. J., Talbot, M., Hare, J. M., Kass, D. A. & Spinelli, J. C., Dec 19 2000, In : Circulation. 102, 25, p. 3053-3059 7 p.

Research output: Contribution to journalArticle

Cardiac Resynchronization Therapy
Bundle-Branch Block
Dilated Cardiomyopathy
Arterial Pressure
Costs and Cost Analysis
Optical Fibers
Solid-State Lasers
Myocardium
Lasers
Catheter Ablation

Mechanical dyssynchrony in dilated cardiomyopathy with intraventricular conduction delay as depicted by 3D tagged magnetic resonance imaging.

Curry, C. W., Nelson, G. S., Wyman, B. T., Declerck, J., Talbot, M., Berger, R. D., McVeigh, E. R. & Kass, D. A., Jan 4 2000, In : Circulation. 101, 1

Research output: Contribution to journalArticle

Myocardial Contraction
Computer-Assisted Image Processing
Bundle-Branch Block
Dilated Cardiomyopathy
Reference Values

Predictors of systolic augmentation from left ventricular preexcitation in patients with dilated cardiomyopathy and intraventricular conduction delay

Nelson, G. S., Curry, C. W., Wyman, B. T., Kramer, A., Declerck, J., Talbot, M., Douglas, M. R., Berger, R. D., McVeigh, E. R. & Kass, D. A., Jun 13 2000, In : Circulation. 101, 23, p. 2703-2709 7 p.

Research output: Contribution to journalArticle

Dilated Cardiomyopathy
Cardiac Catheterization
Arterial Pressure
Blood Pressure
Canidae
Dogs
Ablation Techniques
Cardiac Electrophysiologic Techniques
Temperature

Repolarization alternans: Toward a unifying theory of reentrant arrhythmia induction

Berger, R. D., Dec 8 2000, In : Circulation Research. 87, 12, p. 1083-1084 2 p.

Research output: Contribution to journalArticle

Electrophysiology
Ventricular Fibrillation
Ventricular Tachycardia
Cardiac Arrhythmias
Electrocardiography

Resuscitation after prolonged ventricular fibrillation with use of monophasic and biphasic waveform pulses for external defibrillation

Leng, C. T., Paradis, N. A., Calkins, H., Berger, R. D., Lardo, A. C., Rent, K. C. & Halperin, H. R., Jun 27 2000, In : Circulation. 101, 25, p. 2968-2974 7 p.

Research output: Contribution to journalArticle

Ventricular Fibrillation
Resuscitation
Shock
Hemodynamics
Dogs

Targeted disruption of the Kvlqt1 gene causes deafness and gastric hyperplasia in mice

Lee, M. P., Ravenel, J. D., Hu, R. J., Lustig, L. R., Tomaselli, G., Berger, R. D., Brandenburg, S. A., Litzi, T. J., Bunton, T. E., Limb, C., Francis, H., Gorelikow, M., Gu, H., Washington, K., Argani, P., Goldenring, J. R., Coffey, R. J. & Feinberg, A. P., 2000, In : Journal of Clinical Investigation. 106, 12, p. 1447-1455 9 p.

Research output: Contribution to journalArticle

Beckwith-Wiedemann Syndrome
Deafness
Hyperplasia
Stomach
Cardiac Arrhythmias

Temporal repolarization lability in hypertrophic cardiomyopathy caused by β-myosin heavy-chain gene mutations

Atiga, W. L., Fananapazir, L., McAreavey, D., Calkins, H. & Berger, R. D., Mar 21 2000, In : Circulation. 101, 11, p. 1237-1242 6 p.

Research output: Contribution to journalArticle

Myosin Heavy Chains
Hypertrophic Cardiomyopathy
Mutation
Genes
Sudden Death

Visualization and temporal/spatial characterization of cardiac radiofrequency ablation lesions using magnetic resonance imaging

Lardo, A. C., McVeigh, E. R., Jumrussirikul, P., Berger, R. D., Calkins, H., Lima, J. & Halperin, H. R., Aug 8 2000, In : Circulation. 102, 6, p. 698-705 8 p.

Research output: Contribution to journalArticle

Magnetic Resonance Imaging
Catheters
Catheter Ablation
Fluoroscopy
Myocardium
1999

Improved left ventricular mechanics from acute VDD pacing in patients with dilated cardiomyopathy and ventricular conduction delay

Kass, D. A., Chen, C. H., Curry, C., Talbot, M., Berger, R. D., Fetics, B. & Nevo, E., Mar 30 1999, In : Circulation. 99, 12, p. 1567-1573 7 p.

Research output: Contribution to journalArticle

Dilated Cardiomyopathy
Mechanics
Heart Failure
Blood Pressure
Cardiac Resynchronization Therapy

Letter to the editor (multiple letters)

Hohnloser, S., Cohen, R. J., Atiga, W. L., Smith, J. M. & Berger, R. D., 1999, In : Journal of Cardiovascular Electrophysiology. 10, 4, p. 626-627 2 p.

Research output: Contribution to journalArticle

Implantable Defibrillators
Sudden Cardiac Death
Ventricular Tachycardia
Stroke Volume
Electrocardiography

Ventricular pacing with premature excitation for treatment of hypertensive-cardiac hypertrophy with cavity-obliteration

Kass, D. A., Chen, C. H., Talbot, M. W., Rochitte, C. E., Lima, J., Berger, R. D. & Calkins, H., Aug 24 1999, In : Circulation. 100, 8, p. 807-812 6 p.

Research output: Contribution to journalArticle

Cardiomegaly
Dyspnea
Exercise
Dobutamine
Exercise Tolerance
1998

Beat-to-beat repolarization lability identifies patients at risk for sudden cardiac death

Atiga, W. L., Calkins, H., Lawrence, J. H., Tomaselli, G. F., Smith, J. M. & Berger, R. D., 1998, In : Journal of Cardiovascular Electrophysiology. 9, 9, p. 899-908 10 p.

Research output: Contribution to journalArticle

Sudden Cardiac Death
Cardiac Arrhythmias
Ventricular Tachycardia
Heart Diseases
Electrocardiography

Comparison of adenosine effects on atrioventricular node reentry and atrioventricular reciprocating tachycardias

Kevin Donahue, J., David Orias, M. D., Berger, R. D., Tomaselli, G. F., Lawrence, J. H. & Calkins, H., Oct 1998, In : Clinical Cardiology. 21, 10, p. 743-745 3 p.

Research output: Contribution to journalArticle

Reciprocating Tachycardia
Atrioventricular Node
Tachycardia
Adenosine
Supraventricular Tachycardia

Human heart rate variability relation is unchanged during motion sickness

Mullen, T. J., Berger, R. D., Oman, C. M. & Cohen, R. J., Jan 1998, In : Journal of Vestibular Research: Equilibrium and Orientation. 8, 1, p. 95-105 11 p.

Research output: Contribution to journalArticle

Motion Sickness
Heart Rate
Eye Protective Devices
Lung
Electrocardiography

Interaction between neuronal nitric oxide synthase and inhibitory G protein activity in heart rate regulation in conscious mice

Jumrussirikul, P., Dinerman, J., Dawson, T. M., Dawson, V., Ekelund, U., Georgakopoulos, D., Schramm, L., Calkins, H., Snyder, S. H., Hare, J. M. & Berger, R. D., Oct 1 1998, In : Journal of Clinical Investigation. 102, 7, p. 1279-1285 7 p.

Research output: Contribution to journalArticle

Nitric Oxide Synthase Type I
GTP-Binding Proteins
Heart Rate
Nitric Oxide Synthase
Pertussis Toxin

Loss of cardiac magnesium in experimental heart failure prolongs and destabilizes repolarization in dogs

Haigney, M. C. P., Wei, S., Kääb, S., Griffiths, E., Berger, R. D., Tunin, R., Kass, D. A., Fisher, W. G., Silver, B. & Silverman, H., Mar 1998, In : Journal of the American College of Cardiology. 31, 3, p. 701-706 6 p.

Research output: Contribution to journalArticle

Magnesium
Heart Failure
Dogs
Muscle Cells
Magnesium Chloride

Predictors of fluoroscopy time and estimated radiation exposure during radiofrequency catheter ablation procedures

Rosenthal, L. S., Mahesh, M., Beck, T. J., Saul, J. P., Miller, J. M., Kay, N., Klein, L. S., Huang, S., Gillette, P., Prystowsky, E., Carlson, M., Berger, R. D., Lawrence, J. H., Yong, P. & Calkins, H., 1998, In : The American Journal of Cardiology. 82, 4, p. 451-458 8 p.

Research output: Contribution to journalArticle

Catheter Ablation
Fluoroscopy
Radiation Exposure
Accessory Atrioventricular Bundle
Atrioventricular Nodal Reentry Tachycardia

Relation between impedance and electrode temperature during radiofrequency catheter ablation of accessory pathways and atrioventricular nodal reentrant tachycardia

Nsah, E., Berger, R. D., Rosenthal, L., Hui, R., Ramza, B., Jumrussirikul, P., Lawrence, J. H., Tomaselli, G., Kass, D. A. & Calkins, H., 1998, In : American Heart Journal. 136, 5, p. 844-851 8 p.

Research output: Contribution to journalArticle

Atrioventricular Nodal Reentry Tachycardia
Catheter Ablation
Electric Impedance
Electrodes
Temperature

Relationship between the upper limit of vulnerability determined in normal sinus rhythm and the defibrillation threshold in patients with implantable cardioverter defibrillators

Hui, R. C., Rosenthal, L., Ramza, B., Nsah, E., Lawrence, J., Tomaselli, G., Berger, R. D. & Calkins, H., 1998, In : PACE - Pacing and Clinical Electrophysiology. 21, 4 I, p. 687-693 7 p.

Research output: Contribution to journalArticle

Implantable Defibrillators
Ventricular Fibrillation
Shock
Equipment and Supplies
1997

Beat-to-beat QT interval variability: Novel evidence for repolarization lability in ischemic and nonischemic dilated cardiomyopathy

Berger, R. D., Kasper, E. K., Baughman, K. L., Marban, E., Calkins, H. & Tomaselli, G. F., Sep 2 1997, In : Circulation. 96, 5, p. 1557-1565 9 p.

Research output: Contribution to journalArticle

Dilated Cardiomyopathy
Heart Rate
Cardiac Arrhythmias
Electrocardiography
Sudden Death

Comparison of heart rate variability in patients with chronic fatigue syndrome and controls

Yataco, A., Talo, H., Rowe, P., Kass, D. A., Berger, R. D. & Calkins, H., 1997, In : Clinical Autonomic Research. 7, 6, p. 293-297 5 p.

Research output: Contribution to journalArticle

Chronic Fatigue Syndrome
Heart Rate
Supine Position
Tilt-Table Test
Centers for Disease Control and Prevention (U.S.)

Dispersion of ventricular activation and refractoriness in patients with idiopathic dilated cardiomyopathy

Dinerman, J. L., Berger, R. D., Haigney, M. C. P., Lawrence, J. H., Tomaselli, G. F. & Calkins, H., Apr 1 1997, In : The American Journal of Cardiology. 79, 7, p. 970-974 5 p.

Research output: Contribution to journalArticle

Dilated Cardiomyopathy
Sudden Cardiac Death
Cardiomyopathies
Action Potentials
Cardiac Arrhythmias

Power spectrum of the QRS complex in patients with panic disorder and normal controls

Yeragani, V. K., Berger, R. D., Songer, D. A. & Yeragani, S., Feb 7 1997, In : Psychiatry Research. 66, 2-3, p. 167-174 8 p.

Research output: Contribution to journalArticle

Panic Disorder
Posture
Coronary Disease
Electrocardiography
Extremities

Safety and effectiveness of placement of pacemaker and defibrillator leads in the axillary vein guided by contrast venography

Ramza, B. C. M., Rosenthal, L., Hui, R., Nsah, E., Savader, S., Lawrence, J. H., Tomaselli, G., Berger, R. D., Brinker, J. A. & Calkins, H., Oct 1 1997, In : The American Journal of Cardiology. 80, 7, p. 892-896 5 p.

Research output: Contribution to journalArticle

Axillary Vein
Defibrillators
Phlebography
Safety
Implantable Defibrillators

Signal-averaged intracardiac electrograms: A new method to detect Kent potentials

Berger, R. D., Nsah, E. & Calkins, H., 1997, In : Journal of Cardiovascular Electrophysiology. 8, 2, p. 155-160 6 p.

Research output: Contribution to journalArticle

Cardiac Electrophysiologic Techniques
Catheter Ablation
Catheters
Signal-To-Noise Ratio
Software

Tissue magnesium levels and the arrhythmic substrate in humans

Haigney, M. C. P., Berger, R. D., Schulman, S. P., Gerstenblith, G., Tunin, C., Silver, B., Silverman, H. S., Tomaselli, G. & Calkins, H., 1997, In : Journal of Cardiovascular Electrophysiology. 8, 9, p. 980-986 7 p.

Research output: Contribution to journalArticle

Magnesium
Magnesium Deficiency
Cardiac Arrhythmias
Ventricular Tachycardia
Sudden Death
1996
Catheter Ablation
Ventricular Tachycardia
Bundle of His
Tachycardia
Myotonic Dystrophy

Recurrence of conduction following radiofrequency catheter ablation procedures: Relationship to ablation target and electrode temperature

Calkins, H., Prystowsky, E., Berger, R. D., Saul, J. P., Klein, L. S., Liem, L. B., Huang, S. K. S., Gillette, P., Yong, P. & Carlson, M., 1996, In : Journal of Cardiovascular Electrophysiology. 7, 8, p. 704-712 9 p.

Research output: Contribution to journalArticle

Catheter Ablation
Electrodes
Recurrence
Temperature
Atrioventricular Nodal Reentry Tachycardia

Temperature monitoring during radiofrequency ablation

Dinerman, J. L., Berger, R. D. & Calkins, H., 1996, In : Journal of Cardiovascular Electrophysiology. 7, 2, p. 163-173 11 p.

Research output: Contribution to journalArticle

Temperature
Catheter Ablation
Electrodes
Heating
Wounds and Injuries
1995

Role of atrial contraction in diastolic pressure elevation induced by rapid pacing of hypertrophied canine ventricle

Berger, R. D., Wolff, M. R., Anderson, J. H. & Kass, D. A., 1995, In : Circulation Research. 77, 1, p. 163-173 11 p.

Research output: Contribution to journalArticle

Heart Ventricles
Canidae
Blood Pressure
Dogs
Hypertrophy
1994

Effects of nortriptyline on heart rate variability in panic disorder patients: A preliminary study using power spectral analysis of heart rate

Yeragani, V. K., Srinivasan, K., Pohl, R., Berger, R. D., Baton, R. & Ramesh, C., 1994, In : Neuropsychobiology. 29, 1, p. 1-7 7 p.

Research output: Contribution to journalArticle

Nortriptyline
Panic Disorder
Heart Rate
Yohimbine
Tricyclic Antidepressive Agents

Relationship between age and heart rate variability in supine and standing postures: A study of spectral analysis of heart rate

Yeragani, V. K., Pohl, R., Berger, R. D., Balon, R. & Srinivasan, K., Jan 1994, In : Pediatric Cardiology. 15, 1, p. 14-20 7 p.

Research output: Contribution to journalArticle

Posture
Heart Rate
Blood Pressure

Sodium lactate increases sympathovagal ratios in normal control subjects: Spectral analysis of heart rate, blood pressure, and respiration

Yeragani, V. K., Srinivasan, K., Pohl, R., Berger, R. D., Balon, R. & Berchou, R., 1994, In : Psychiatry Research. 54, 1, p. 97-114 18 p.

Research output: Contribution to journalArticle

Sodium Lactate
Lactic Acid
Respiration
Heart Rate
Cholinergic Agents

Sudden cardiac death in heart failure: The role of abnormal repolarization

Tomaselli, G. F., Beuckelmann, D. J., Calkins, H., Berger, R. D., Kessler, P. D., Lawrence, J. H., Kass, D. A., Feldman, A. M. & Marban, E., Nov 1994, In : Circulation. 90, 5, p. 2534-2539 6 p.

Research output: Contribution to journalArticle

Sudden Cardiac Death
Heart Failure
Sudden Death
Tachycardia
Myocardium
1993

A Time Domain Approach for the Fluctuation Analysis of Heart Rate Related to Instantaneous Lung Volume

Yana, K., Saul, J. P., Berger, R. D., Perrott, M. H. & Cohen, R. J., 1993, In : IEEE Transactions on Biomedical Engineering. 40, 1, p. 74-81 8 p.

Research output: Contribution to journalArticle

Impulse response
Processing

Decreased heart rate variability in panic disorder patients: A study of power-spectral analysis of heart rate

Yeragani, V. K., Pohl, R., Berger, R. D., Balon, R., Ramesh, C., Glitz, D., Srinivasan, K. & Weinberg, P., 1993, In : Psychiatry Research. 46, 1, p. 89-103 15 p.

Research output: Contribution to journalArticle

Panic Disorder
Heart Rate
Posture
Power (Psychology)
Adrenergic Agents

Is the power spectrum of the QRS complex related to a fractal His-Purkinje system?

Berger, R. D., Rosenbaum, D. S. & Cohen, R. J., Feb 15 1993, In : The American Journal of Cardiology. 71, 5, p. 430-433 4 p.

Research output: Contribution to journalArticle

Fractals
Nonlinear Dynamics
Ventricular Premature Complexes
1992

Effects of yohimbine on heart rate variability in panic disorder patients and normal controls: A study of power spectral analysis of heart rate

Yeragani, V. K., Berger, R. D., Pohl, R., Srinivasan, K., Balon, R., Ramesh, C., Weinberg, P. & Berchou, R., 1992, In : Journal of Cardiovascular Pharmacology. 20, 4, p. 609-618 10 p.

Research output: Contribution to journalArticle

Yohimbine
Panic Disorder
Heart Rate
Posture
Adrenergic Agents
1991

Spectral Analysis of Heart Rate in Diabetic Autonomic Neuropathy: A Comparison with Standard Tests of Autonomic Function

Freeman, R., Saul, J. P., Roberts, M. S., Berger, R. D. & Cohen, R. J., 1991, In : Archives of Neurology. 48, 2, p. 185-190 6 p.

Research output: Contribution to journalArticle

Diabetic Neuropathies
Heart Rate
Blood Pressure
Parasympathetic Nervous System
Sympathetic Nervous System