Curriculum Vitae

(Last updated 5/24/06)




Electrophysiology Fellow
Baylor College of Medicine
Houston, Texas


Cardiology Fellow 
University of Illinois
Chicago, Illinois


Northwestern University Medical School       M.D. 
Chicago, Illinois


Northwestern University                            B.M.
Chicago, Illinois



Professor of Medicine, University of Oklahoma 
Oklahoma City, Oklahoma


Associate Professor of Medicine, University of Oklahoma
Oklahoma City, Oklahoma


Assistant Professor of Medicine, University of Oklahoma 
Oklahoma City, Oklahoma


Director, Electrophysiology and Electrocardiography 
University of Illinois, Chicago


Director, Cardiac Ambulatory Care Center 
University of Illinois, Chicago


Assistant Professor of Medicine 
University of Illinois, Chicago


Instructor in Medicine
University of Illinois, Chicago


American Board of Internal Medicine


Re-certified in Clinical Cardiac Electrophysiology 



Clinical Cardiac Electrophysiology 



Cardiovascular Disease 



Internal Medicine 



Diplomate, National Board of Medical Examiners 



Oklahoma (active) 


Illinois (active) 



Focused Circumferential UltraSound for the Treatment of Atrial Fibrillation IRB#12656 IDE#G030184 C# not yet assigned.

Principal Investigator: Richard Wu

Collaborating Investigators: Karen Beckman, Sunny Po, Warren Jackman and Deborah Lockwood

Sponsor: ProRhythm, Inc.

Projected Grant Award: $154,806

Start Date: 6/1/2006

End Date: 2/27/07

Study Objective: This clinical study is a prospective, randomized, controlled, multicenter clinical trial to evaluate the safety and effectiveness of the HIFU PV Ablation system in Pulmonary Vein Isolation procedures for the treatment of atrial fibrillation. The primary endpoint will compare the rate of patient clinical success in the treatment group (using the HIFU system) against the control group (medical therapy with AADs) secondarily, chronic success and quality of like endpoints shall be evaluated separately. 

NaviStar ThermoCool Evaluation of the Catheter with the Stockert 70 Radiofrequency Generator for Endocardial Ablation in Patients with Typical Atrial Flutter, Condition of Approval Studyt, PMA #P030031 IRB# and C# not yet assigned

Principal Investigator: Richard Wu

Collaborating Investigator: Deborah Lockwood, Sunny Po and Karen Beckman

Sponsor: Biosense Webster 

Projected Grant Award: $50,000

Start Date: 6/1/2006 

End Date:

Study Objective; Subjects with symptomatic typical atrial flutter will be considered for this condition of approval study. The study will be conducted in up to 30 centers with a minimum of 221 evaluable subjects. The primary objective is to provide additional, corroborative safety and efficacy data for the NaviStar ThermoCool catheter for the treatment for subjects with typical atrial flutter.

ATTRAC II Study: Arrhythmia Treatment with a Thermocouple Radiofrequency Ablation Catheter-Remote Protocol IRB#11949 IDE#G020129 C7028301

Principal Investigator: Karen Beckman and Hiroshi Nakagawa

Collaborating Investigators: Sunny Po, Richard Wu, Deborah Lockwood and Warren Jackman

Sponsor: Stereotaxis, Inc.

 Projected Grant Award: $65,630

Start Date: 6/2/2005

 End Date: 6/1/2006

Study Objective: This is a clinical study to evaluate the safety and efficacy of the Hilios II, a 3-magnet Ablation Catheter, with the Cardiodrive Catheter Advancement System, to eliminate Accessory Atrioventricular pathways in patients with overt or concealed WPW, AV nodal re-entrant tachycardia, and creation of complete AV nodal block in patients with difficult to control ventricular response due to an atrial arrhythmia.

Thoracoscopically-Assisted Epicardial Bilateral Pulmonary Vein Isolation Using the AtriCure Bipolar System and Exclusion of the Left Atrial Appendage for the Treatment of Atrial Fibrillation IRB#12421 IDE#G050028 C#8076701

Co-Principal Investigators: Deborah Lockwood, Marvin Peyton.

Sponsor: AtriCure, Inc.

Projected Grant Award: $35,810

Start Date: 9/1/2005

 End Date 9/30/2015

Study Objective: The objectives of this study are to: 1) refine the procedure of performing endoscopically assisted pulmonary vein isolation and LAA excision/exclusion through bilateral mini-thoracotomies; 2) assess the feasibility and safety of performing this surgical procedure in patients with AF of all classifications (paroxysmal, persistent, and permanent); and 3) assess the clinical outcomes in these patients through four months post procedure, with follow-up continuing through ten years after surgery. 

Implantable Cardioverter Defibrillator Registry for long QT Syndrome (ICD-LQTS): Observational Study IRB#12078

Principal Investigator: Karen Beckman

Collaborating Investigator: Richard Wu, Deborah Lockwood and Sunny Po

Sponsor: Cardiac Arrhythmia Research Institute


Start Date: 3/2005

 End Date: Open

Study Objective: To determine the life-saving effectiveness and safety of ICD therapy in people with LQTS, a registry bank will be formed to monitor the clinical experiences of people with PQTS who have an ICD. Information for the registry bank will be obtained via an enrollment questionnaire, and medical information. 

Determinants of Catheter Ablation Failure IRB#09585 C3021501

Principal Investigator: Sunny S. Po

Collaborating Investigators: Warren Jackman, Karen Beckman, Hiroshi Nakagawa, Richard Wu, Deborah Lockwood

Sponsor: NIH 

Projected Grant Award: $669,195

Start Date: 1/22/2004

End Date: 11/30/2007

Study Objective: The purpose of this study is to find out the factors causing unsuccessful catheter ablations in approximately 10% of the patients with paroxysmal supraventricular tachycardia.

Localization of the anterograde and retrograde components of the reentrant circuit of AV nodal reentrant tachycardia. IRB#11255

Principal Investigator: Deborah J. Lockwood

Collaborating Investigators: Sunny Po, Warren Jackman, Karen Beckman, Richard Wu

Sponsor: Cardiac Arrhythmia Research Institute 


Start Date: 3/25/2004 

End Date: Open

Study Objective: The purpose of this study is to identify the location of the components of the circuit, which allows AV nodal reentry tachycardia to occur. The most common location of one part of the circuit is known, and will provide the primary target of the planned ablation procedure if the diagnosis of AVNRT is confirmed. In some patients ablation at this site does not eliminate the abnormal rhythm and other targets are sought.

Ablation of inappropriate sinus tachycardia syndrome by targeting cardiac neural input. IRB#11468

Principal Investigator: Deborah J. Lockwood

Collaborating Investigators: Sunny Po, Warren Jackman, Karen Beckman, Richard Wu

Sponsor: Cardiac Arrhythmia Research Institute


Start Date: 6/7/2004 

End Date: Open

Study Objective: The purpose of this study is to determine whether radiofrequency catheter ablation, targeting the nerve that goes to the sinus node, can effectively and safely reduce the sinus node rate and reduce symptoms of palpitations.

VERiTAS: Ventricular Electroanatomical mapping to assess the Risk of life Threatening Arrhthmias IRB#10969

Co-Principal Investigators: Warren Jackman and Hiroshi Nakagawa

Collaborating Investigators: Karen Beckman, Sunny Po, Richard Wu, Deborah Lockwood, Jorge Saucedo, Thomas Hennebry

Sponsor: Cardiac Arrhythmia Research Institute


Start Date: 1/22/2004

End Date: Open

Study Objective: The long-term objectives of this study are to develop criteria, based on an initial LV endocardial map during sinus rhythm, to identify a large group of post MI patients with low LVEF who do not require ICD therapy, and determine whether LV endocardial mapping should be repeated and at which interval of time to identify arrhythmogenic remodeling. 

A Clinical Study for the Assessment of Safety and Efficacy of the High Intensity Focused Ultrasound (HIFU) System for Pulmonary Vein Isolation IRB#11126 IDE#G030184 C#7022101

Principal Investigator: Richard Wu (formerly Warren Jackman)

Collaborating Investigators: Karen Beckman, Sunny Po, Warren Jackman and Deborah Lockwood

Sponsor: ProRhythm, Inc.

Projected Grant Award: $225,170

Start Date: 1/30/2004

End Date: 1/27/2006

Study Objective: The purpose of this investigation is to establish that the High Intensity Focused Ultrasound System for Pulmonary Vein isolation (HIFU System) is safe and effective as a cardiac ablation device for the electrical isolation of the pulmonary veins in the treatment of paroxysmal and persistent atrial fibrillation.

NAVI-STARÒ THERMO-COOLÔ Catheter For Ablation of Atrial Fibrillation IRB#10971 IDE#G030138 

Co-Principal Investigators: Warren M. Jackman and Hiroshi Nakagawa

Collaborating Investigators: Karen J. Beckman, Sunny S. Po, Richard Wu and Deborah Lockwood

Sponsor: Cardiac Arrhythmia Research Institute


Start Date: 10/2003

End Date: Open

Study Objective: The purpose of this research study is to test the safety and effectiveness of an experimental catheter for ablation of atrial fibrillation. This experimental catheter uses a flow of saline through the catheter, which cools the tip, allowing the use of higher power for ablation. The higher power will increase the depth of the ablation and may increase the chance to eliminate the atrial fibrillation.

New Approaches for the Treatment of Supraventricular Tachycardias IRB#11097

Principal Investigator: Sunny Po


Sponsor: Cardiac Arrhythmia Research Institute


Start Date: 10/14/2003 

End Date:

Study Objective: The aim of this study is to evaluate success of ventricular rate control with medications in patients with decreased left ventricular function and hypotension.

Mechanisms of Arrhythmias and Long-Term Follow-Up of Patients Undergoing Catheter Ablation. IRB#09343

Co-Principal Investigators: Warren Jackman and Karen Beckman

Collaborating Investigators: Sunny Po, Richard Wu and Deborah Lockwood

Sponsor: Cardiac Arrhythmia Research Institute


Start Date: 2/25/2001 

End Date: Open

Study Objective: The purpose of this study is to assess the long-term effects of catheter ablation procedures performed at this institution, including recurrence of the ablated arrhythmia and any late complications. 


Refereed Journals

  1. Flaker GC, Belew K, Beckman KJ, Vidaillet H, Kron J, Stafford R, Mickel M, Barrell P for the AFFIRM Investigators. Asymptomatic atrial fibrillation: demographic features and prognostic information from the atrial fibrillation follow-up investigation of rhythm management (AFFIRM) study. Am Heart J 2005;149(4):657-63.

  2. Murray K, Rottman JN, Arbogast PG, Primm RK, Campell WB, Solomon AJ, Olgin JE, Wilson MJ, DiMarco JD, Beckman KJ, Dennish G, Naccarelli GV, Nasco E, Shemanski L, Ray WA, and the NHLBI AFFIRM investigators. Inhibition of angiotensin II signaling and recurrence of atrial fibrillation in AFFIRM. Heart Rhythm 2004 1(6):669-75.

  3. Nakagawa H, Aoyama H, Beckman KJ, Po SS, Wu R, Lockwood D, Spector P, Calame JD, Lustgarten LD, Herring L, Hasdemir C, Singh D, Lazzara R, Jackman WM. Relation between pulmonary vein firing and extent of left atrial-pulmonary vein connection in patients with atrial fibrillation. Circulation 2004;109:1523-9.

  4. Klein RC, Raitt MH, Wilkoff BL, Beckman KJ, Coromilas J, Wyse DG, Friedman PL, Martins JB, Epstein AE, Engelstein ED, Hallstrom AP, Ledingham RB, Belco KM, Green HL, and the AVID investigators. Analysis of implantable cardioverter defibrillator in the antiarrhythmics versus implantable defibrillators (AVID) trial. J Cardiovasc Electrophysiol 2003;14:940-948.

  5.  Sun Y, Arruda M, Otomo K, Beckman KJ, Nakagawa H, Calame J, Po SS, Spector P, Lustgarten D, Herring L, Lazzara R, Jackman WM. Coronary sinus-ventricular accessory connections producing posteroseptal and left posterior accessory pathways: incidence and electrophysiological identification. Circulation 2003;106:1362-7.

  6. Raitt MH, Klein RC, Wyse RG, Wilkoff BL, Beckman KJ, Epstein AE, Coromilas J, Friedman PL, Martins J, Ledingham RB, Greene HL, and the AVID investigators. Comparison of arrhythmia recurrence in patients presenting with ventricular fibrillation compared to ventricular tachycardia in the antiarrhythmics versus implantable defibrillators (AVID) trial. Am J of Cardiol 2002;19:812-816.

  7. Hasdemir C, Shah N, Rao A, Acosta H, Matsudaira K, Neas BR, Reynolds DW, Po S, Lazzara R, Beckman KJ. Analysis of troponin 1 levels after spontaneous implantable cardioverter defibrillator shocks. J Cardiovasc Electrophysiol 2002:13;1-7.

  8.  Wyse DG, Friedman P, Brodsky M, Beckman KJ, Carlson M, Curtis A. Hallstrom A, Raitt M, Wilkoff B, Greene L. Life-threatening ventricular arrhythmias due to transient or correctible causes: high risk for death in follow-up. J Am Coll Cardiol 2001;38:1718-24.

  9. Steinberg JS, Beckman KJ, Greene HL, Marinchak R, Klein RC, Greer SG, Ehlert F, Foster P, Menchavez E, Raitt M. Wathen MS, Morris M, Hallstrom A. Follow-up of patients with unexplained syncope and inducible ventricular tachyarrhythmias: analysis of the AVID registry and an AVID substudy. J Cardiovasc Electrophysiol 2001;12:996-1001.

  10. Rao A, Reynolds DW, Beckman KJ. Unexpectedly high defibrillation thresholds in an active can implantable cardioverter-defibrillator system. PACE 2001;24:1168-1169.

  11.  Otomo K, Gonzalez MD, Becker AE, Beckman KJ, Nakagawa H, Shah N, Arruda MS, Matsudaira K, Wang Z, Imai S, Lazzara R, Jackman WM. Reversing the direction of paced ventricular and atrial activation wavefronts reveals an oblique course in accessory AV pathways and improves localization of accessory AV pathways for catheter ablation. Circulation 2001;104:550-6.

  12. Gonzalez MD, Otomo K, Shah N, Arruda MS, Beckman KJ, Lazzara R, Jackman WM. Transseptal left heart catheterization for cardiac ablation procedures. J of Intervent Cardiac Electrophysiol 2001;5:89-95.

  13.  Exner DV, Pinski SL, Wyse DG, Renfroe EG, Follmann D, Gold M, Beckman KJ, Coromilas J, Lancaster S, Hallstrom AP, and the AVID investigators. Electrical storm presages nonsudden death: the antiarrhythmias versus implantable defibrillators (AVID) trial. Circulation 2001;103:2066-2071.

  14.  Nakagawa H, Shah N, Matsudaira K, Overholt E, Chandrasekaran K, Beckman KJ, Spector P, Calame JD, Hasdemir C, Otomo K, Wang Z, Lazzara R, Jackman WM. Characterization of the reentrant circuit in macroreentrant right atrial tachycardia following surgical repair of congenital heart disease: isolated channels between dense scars allow "focal" ablation. Circulation 2001;103:699-709.

  15.  Menon V, Steinberg JS, Akiyam T, Beckman KJ, Carillo L, Kutalek. Implantable cardioverter defibrillator discharge rates in patients with unexplained syncope, structural heart disease, and inducible ventricular tachycardia at electrophysiological study. Clin Cardiol 2000;23:195-200.

  16.  The AVID investigators. Causes of death in the antiarrhythmics versus implantable defibrillators (AVID) trial. J Am Coll Cardiol 1999;34:1552-9.

  17.  Anderson JL, Hallstrom A, Epstein AE, Pinski S, Rosenberg Y, Nora MO, Chilson D, Cannon DS, Moore R, and the AVID investigators. Design and results of the antiarrhythmics vs implantable defibrillators (AVID) registry. Circulation 1999;9:1692-99.

  18.  Arruda MS, McClelland JH, Wang X, Beckman KJ, Widman LE, Gonzalez MD, Nakagawa H, Lazzara R, Jackman WM. Development and validation of an ECG algorithm for identifying accessory pathway ablation site in Wolff-Parkinson-White Syndrome. J Cardiovasc Electrophysiol 1998;9:2-12.

  19.  Sivaram CA, Beckman KJ. Images in clinical medicine. Amiodarone-induced skin discoloration. New Eng J Med 1997;337:1813.

  20. The Antiarrhythmics vs implantable defibrillators (AVID) investigators. A comparison of antiarrhythmic drug therapy with implantable defibrillators in patients resuscitated from near-fatal ventricular arrhythmias. N Eng J Med 1997;337:1576-83.

  21.  Stambler BS, Beckman KJ, Kadish AH, Camm JA, Ellenbogen KA, Perry KT, Vanderlugf JT. Acute hemodynamic effects of intravenous ibutilide in patients with or without reduced left ventricular function. Am J Cardiol 19997;80:458-463.

  22.  Curtis AB, Hallstrom AP, Klein RC, Nath S, Pinski S, Epstein AE, Wyse DG, Cannom DS, Renfroe E, and the AVID investigators. Am J Cardiol 1997;79:001-005.

  23.  Hirao K, Otomo K, Wang X, Beckman KJ, McClelland JH, Widman L, Gonzalez M, Arruda M, Lazzara R, Jackman WM. Para-Hisian pacing. A new method for differentiating retrograde conduction over an accessory AV pathway from conduction over the AVE node. Circulation 1996;94:1027-1035.

  24.  Nakagawa H, Lazzara R, Khastigir T, Beckman KJ, McClelland JH, Imai S, Pitha JV, Becker AE, Arruda M, Gonzalez MD, Widman LE, Rome M, Neuhauser J, Wang X, Calame JD, Gondean MD, Jackman WM. Role of the tricuspid annulus and the eustachian valve/ridge on atrial flutter. Circulation 1996;94:407-424.

  25.  Reiter MJ, Mann DE, Reiffel JE, Hahn E, Hartz V and the ESVEM investigators. Significance and incidence of concordance of drug efficacy predications by Holter monitoring and electrophysiology study in the ESVEM study. Circulation 1995;91:1988-95.

  26.  The AVID investigators. Antiarrhythmic versus implantable defibrillators (AVID) - rationale, design, and methods. Am J Cardiol 1995;75:470-475. 

  27. Nakagawa H, Yamanashi WS, Arruda M, Pitha JV, Otomo K, Wang X, Beckman KJ, McClelland JH, Lazzara R, Jackman WM. Comparison of in vivo tissue temperature profile and lesion geometry for radiofrequency ablation using a saline irrigated electrode versus temperature control in a canine thigh muscle preparation. Circulation 1995;16:970-95.

  28.  Lin JC, Beckman KJ, Hariman RJ, Bharati S, Lev M, Wang X. Microwave ablation of the atrioventricular junction in open chest dogs. Bioelectromagnetics 1995;16:97-105.

  29.  Twidale N, Hazlitt HA, Berbari EJ, Beckman KJ, McClelland JH, Moulton KP, Prior MI, Lazzara R, Jackman WM. Late potentials are unaffected by radiofrequency catheter ablation in patients with ventricular tachycardia. PACE 1994;17(2):157-166.

  30.  McClelland JH, Wang X, Beckman KJ, Hazlitt HA, Prior M, Nakagawa H, Lazzara R, Jackman WM. Radiofrequency catheter ablation of right atriofascicular (Mahaim) accessory pathways guided by accessory pathway activation potentials. Circulation 1994;89:2655-2666.

  31.  Tong DA, Beckman KJ, Widman LE. Model based rhythm analysis of the ECG: evaluation of a prototype implementation. J of Electrocardio 1994;26 suppl:182-193.

  32.  Nakagawa H, Beckman KJ, McClelland JH, Wang X, Lazzara R, Arruda M, Santoro I, Hazlitt HA, Abdalla I, Singh A, Gossinger H, Sweidan R, Hiaro K, Widman L, Jackman WM. Radiofrequency catheter ablation of idiopathic left ventricular tachycardia guided by a Purkinje potential. Circulation 1993;88:2607-2617.

  33. The ESVEM Investigators. Determinants of predicted efficacy of antiarrhythmic drugs in the electrophysiologic study versus electrocardiographic monitoring trial. Circulation 1993;87:323-329.

  34. . Mason JW for the ESVEM Investigators. A comparison of seven antiarrhythmic drugs in patients with ventricular tachyarrhythmias. N Eng J Med 1993;329:452-8.

  35. Mason JW for the ESVEM Investigators. A randomized comparison of electrophysiologic testing with Holter monitoring to predict antiarrhythmic drug efficacy for ventricular tachyarrhythmias. N Eng J Med 1993;329:445-51.

  36.  Hoon TJ, McCollam PL, Beckman KJ, Hariman RJ, Bauman JL. Impact of food on the pharmacokinetics and electrocardiographic effects of sustained release of verapamil in normal subjects. Am J Cardiol 1992;70:1072-1076.

  37. Jackman WM, Beckman KJ, McClelland JH, Wang X, Friday KJ, Roman CA, Moulton KP, Twidale N, Hazlitt HA, Prior MI, Oren J, Overholt ED, Lazzara R. Treatment of supraventricular tachycardia due to atrioventricular nodal reentry by radiofrequency catheter ablation of slow-pathway conduction. N Eng J Med 1992;327:313-318.

  38.  Berk SI, Beckman KJ, Hoon TJ, Hariman RJ, Hu D, Siegel FP, Bauman JL. Comparison of the pharmacokinetics and electrocardiographic effects of sublingual and intravenous verapamil. Pharmacotherapy 1992;12:33-39.

  39.  Twidale N, Wang X, Beckman KJ, McClelland JH, Moulton KP, Prior MI, Hazlitt HA, Lazzara R, Jackman WM. Factors associated with recurrence of accessory pathway conduction after radiofrequency catheter ablation. PACE 1991;14:2042-2048.

  40. Jackman WM, Wang X, Friday KJ, Roman CA, Moulton KP, Beckman KJ, Mcclelland H, Twidale N, Hazlitte HA, Prior MI, Margolis PD, Calame JD, Overholt ED, Lazzara R. Catheter ablation of accessory atrioventricular pathways (Wolff-Parkinson-White syndrome) by radiofrequency current. N Eng J Med 1991;324:1605-1611.

  41.  Beckman KJ, Parker RB, Bauman JL, Javaid JI, Hariman RJ. The hemodynamic and electrophysiologic actions of cocaine. Effects of sodium bicarbonate as an antidote. Circulation 1991;83:1799-1807.

  42.  Beckman KJ, Bauman JL, Pimental PA, Garrard C, Hariman RJ. Arsenic induced torsade de pointes. Critical Care Medicine 1991;19:290-292.

  43.  Schoen MD, Parker RB, Hoon TJ, Hariman RJ, Bauman JL, Beckman KJ. Evaluation of the pharmacokinetics and electrocardiographic effects of IV verapamil with IV calcium chloride pretreatment. Am J Cardiol 1991;67:300-304.

  44.  Hariman RJ, Hu D, Gallastegui JL, Beckman KJ. High incidence of remission in patients with incessant ventricular tachycardia. Am J Cardiol 1990;66:831-836.

  45.  Beckman KJ, Gallastegui JL, Bauman JL, Hariman RJ. The predictive value of electrophysiologic studies in untreated patients with the Wolff-Parkinson-White syndrome. J Am Coll Cardiol 1990;15:640-647.

  46.  McCollam PL, Parker R, Bauman JL, Beckman KJ, Hariman RJ. Proarrhythmia: a paradoxical response to antiarrhythmic drugs. Pharmacotherapy 1989;9:144-153.

  47.  Lin JC, Beckman KJ, Hariman RJ. Microwave ablation for tachycardia. IEEE/EMBS International Conf Proc 1989;pp 1141-1142.

  48.  Hariman RJ, Beckman KJ, Gomes JAC, Bauman JL, El-Sherif N. Cryothermal mapping of the sinus node in dogs: a simple method of localizing dominant and latent pacemakers. Cardiovasc Res 1989;23:231-238.

  49.  McCollam PL, Bauman JL, Beckman KJ, Hariman RJ. A simple method of monitoring antiarrhythmic drugs during acute and chronic therapy. Am J Cardiol 1989;63:1273-1275.

  50.  Beckman KJ, Velasco CE, Krafcheck J, Lin HT, Margro S, Wyndham CRC. Significant varability in the mode of induction of ventricular tachycardia. Am Heart J 1988;116:718-726.

  51.  Saad N, Bauman JL, Gallastegui JL, Beckman K, Hariman RJ. Analysis of antiarrhythmic drug concentrations determined during electrophysiologic drug testing in patients with ventricular tachycardia. Am J Cardiol 1988;61:922-924.

  52.  Krafchek J, Lin HT, Beckman KJ, Nielson AP, Magro SA, Hargis J, Wyndham CRC. Cumulative effects of amiodarone on inducibility of ventricular tachycardia: implications for electrophysiologic testing. PACE 1988;11:434-444.

  53.  Skinner JE, Beckman KJ, Nielson CM. Detection of the cardiac patient at risk using the event related slow potential. Electroencephalogr Clin Neuro Suppl 1987;40:543-548.

  54.  Bauman JL, Berk SI, Hariman RJ,, Langenberg PW, Deal BJ, Beckman KJ, Brownstein S, Prechel D, Gallastegui JL. Amiodarone for recurrent sustained ventricular tachycardia: efficacy, safety, and factors influencing long-term outcome. Am Heart J 1987;114:1436-1444.

  55.  Beckman KJ, Hariman R. When to treat ventricular tachcyardia without organic heart disease. J of Critical Illness 1986;1:15.

  56.  Beckman KJ, Lin HT, Krafcheck J, Wyndham CRC. Classic and concealed entrainment in typical and atypical atrial flutter. PACE 1986;9:826-835.

Non-refereed Journals

Chapters in Books

  1. Lockwood D, Otomo K, Wang Z, Foresti S, Nakagawa H, Beckman KJ, Scherlag B, Patterson E, Lazzara R, Jackman WM. Electrophysiological Characteristics of Atrioventricular Nodal Reentrant Tachycardia: Implications for the Reentrant Circuits. In: Zipes D, Jalife J (eds) Cardiac Electrophysiology From Cell to Bedside. Saunders, 2004;537-557.

  2. Otomo K, Wang Z, Beckman KJ, Spector P, Nakagawa H, Matsudaira K, Patterson E, Lazzara R, Jackman WM. The Reentrant Circuit for Slow/Fast AV Nodal Reentrant Tachycardia. In: Mazgalev TN, Tchou PJ (eds) A-V Nodal Electrophysiology: A View from the Millennium. Futura Publishing Co., Inc, 2000;421-436.

  3. Beckman KJ, Lazzara R. Cardiac Arrhythmias and Conduction Disturbances. In: Kaufman CEE, McKee PA (eds) Essentials of Pathophysiology. Little, Brown, and Co., Boston 1996.

  4. McClelland JH, Jackman WM, Beckman KJ, Nakagawa H, Arruda M, Wang X, Prior MI, Lazzara R. The Spectrum of "Mahaim-like" Accessory Connections and Their Associated Ablation Techniques. In: Oto AM (ed) Practice and Progress in Cardiac Pacing and Electrophysiology, Kluwer Academic Publishers, Netherlands 1996.

  5. Jackman WM, Nakagawa H, Heidbuchel H, Beckman KJ, McClelland JH, Lazzara R. Three Forms of Atrioventricular Nodal (and Junctional) Reentrant Tachycardia. In: Zipes DP, Jalife J (eds) Cardiac Electrophysiology, W.B. Saunders Company, Philadelphia 1995.

  6. Oren JW, Beckman KJ, McClelland JH,, Wang X, Lazzara R, Jackman WM. A Functional Approach to the Preexcitation Syndromes. In: Akhtar M (ed) Cardiology Clinics, W. B. Saunders Co, Philadelphia 1993.

  7. Beckman KJ, Hariman RJ. Extracellular Recording Techniques. In: Miura DS, Dangham KH (eds) Basic and Clinical Electrophysiology of the Heart Mercel Dekker, Inc., New York 1991.


  1. Lindsay BD, Tomassoni GF, Reddy VY, Sehra R, Beckman KJ, Weiner S, Warner K, Zagrodsky J. Magnetic catheter navigation is safe and effective for ablation of supraventricular tachycardia: results of the multi-center ATTRAC study. Heart Rhythm 2006;3(5):P1-56. 

  2.  Nakagawa H, Yokoyama K, Wu R, Po SS, Lockwood D, Beckman KJ, Herring L, Lazzara R, Scherlag BJ, Jackman WM. Comparison of areas of fractionated atrial potentials and location of autonomic ganglionated plexi between patients with paroxysmal, persistent and permanent atrial fibrillation. Heart Rhythm 2006;3(5):AB3-5.

  3.  Nakagawa H, Yokoyama K, Wu R, Po SS, Lockwood DJ, Beckman KJ, Herring L, Lazzara R, Jackman WM. Increased inducibility of macroreentrant left atrial tachycardia with addition of autonomic ganglionated plexi ablation to pulmonary vein antrum isolation. Heart Rhythm 2006;3(5):AB18-3.

  4.  Nakagawa H, Jackman WM, Scherlag BJ, Yokoyama K, Wu R, Oza S, Shukla H,Beckman KJ, Po SS, Lockwood D, Herring L, Lazzara R. Relationship of complex fractionated atrial electrograms during atrial fibrillation to the location of cardiac autonomic ganglionated plexi in patients with atrial fibrillation. Circulation 2005;112(17 suppl II):3482. 

  5.  Nakagawa H, Aoyma H, Foresti S, Holden M, Pitha JV, Wittkampf FH, Wu R, Beckman KJ, Po SS, Lockwood DJ, Lazzara R, Jackman WM. Testing target navigation in magnetic catheter maneuvering system for pulmonary vein isolation and left atrial linear lesions in canine model. Heart Rhythm 2004;1:545A

  6. Jackman WM, Lockwood DJ, Foresti S, Beckman KJ, Po SS, Nakagawa H, Wu R, Scherlag BJ, Aoyama H, Oza S, Herring L, Lazzara R. Double atrial potentials in the His bundle electrograms during slow/fast AV nodal reentrant tachycardia suggest block at tendon of Todaro. Heart Rhythm 2004;1:143A.

  7. Foresti S, Lockwood DJ, Po SS, Wu R, Nakagawa H, Beckman KJ, Aoyama H, Herring L, Oza S, Lazzara R, Scherlag BJ, Jackman WM. Two distinct retrograde slow pathways are consistent with rightward and leftward posterior extensions of the AV node. Heart Rhythm 2004;1:139A.

  8.  Wu R, Po SS, Beckman KJ, Nakagawa H, Lockwood DJ, Foresti S, Oza S, Aoyama H, Lazzara R, Jackman WM. Isolated diastolic potentials recorded at sites distant from earliest ventricular activation in idiopathic left ventricular outflow tract tachycardia. Heart Rhythm 2004;1:22A.

  9.  Nakagawa H, Singh D, Beckman KJ, Locwood DJ, Po SS, Wu R, Aoyama H, Foresti S, Oza S, Herring L, Calame JD, Lazzara R, Jackman WM. Ablation of unmappable pot-MI ventricular tachycardia using substrate mapping during sinus rhythm: Predictors for a recurrence. Heart Rhythm 2004:1:111A.

  10.  Po SS, Beckman KJ, Lockwood D, Nakagawa H, Otomo K, Wu R, Singh D, Calame JD, Herring L, Ashar M, Lazzara R, Jackman WM. AV nodal reentrant tachycardia requiring ablation from the mitral annulus: section of effective ablation site. PACE 2003;26:203A.

  11. Nakagawa H, Aoyyama H, Beckman KJ, Po SS, Lockwood D, Wu R, Ashar M, Singh D, Calame JD, Herringn L, Lazzara R, Jackman Wm. Safety and efficacy of Cryo-ablation of epicardial posteroseptal accessory pathway within the middle cardiac vein close (‹2mm) to a coronary artery. PACE 2003;26:199A.

  12. Nakagawa H, Aoyama H, Beckman KJ, Wu R, Po SS, Ashar M. Singh D, Calame JD, Herring L, Lazzara R, Jackman WM. Incidence and location of the reentrant circuit in macroreentrant left atrial tachycardia following pulmonary vein isolation. PACE 2003;26:167A. 

  13. Flaker GC, Belew K, Vidaillet HJ, Beckman KJ, Kron J, Safford R, Mickel M. Differences between asymptomatic and symptomatic patients with atrial fibrillation in the atrial fibrillation follow-up investigation of rhythm management (AFFIRM) study. PACE 2003;26:151A.

  14. Nakagawa H, Wittkampf, Aoyama H, Holden M, Pitha JV, Foresti S, Beckman KJ, Po SS, Wu R, Lockwood D, Ashar M, Lazzara R, Jackman WM. Pre-clinical canine testing of a novel magnetic catheter maneuvering system for pulmonary vein isolation and radiofrequency left atrial linear lesions. PACE 2003;26:106A.

At the University of Oklahoma Health Sciences Center

  1.  Cardiology Grand Rounds


     "Inappropriate Sinus Tachycardia"


    "Informed Consent in Human Subjects Research and the Therapeutic Misconception"


    " Therapy as Primary Prevention of SCD: Trial evidence"


     "Tachycardia Mediated Cardiomyopathy"

  2.  Cardiology Fellows Didactic Lecture Series

    1990 - Present


  3.  Medical Student Pathophysiology Lecture

    Annually 1993 - 2000:

     "Cardiac Arrhythmias and Conduction Disturbances"

  4.  Medical Student Pathophysiology Workshop

    Annually 1990 - Present

  5.  Medicine Housestaff Subspecialty Lecture


      "Diagnosis + Treatment of Arrhythmia in the ICU setting"


      "Diagnosis + Treatment of Arrhythmias in the ICU setting"


     "Diagnosis + Treatment of Arrhythmias" 


     "Diagnosis + Treatment of Arrhythmias" 

  6.  Professional Ethics and Professionalism (Medical students)

    Informed Consent 2003, 2004, 2005

  7. Ethics Journal Club

    Therapeutic Misconception 2005

  8. Human Research Protection Seminars

    Informed Consent 2000-present

State of Oklahoma

  1. Oklahoma City Chapter of the American Academy of Professional Coders 2000

    "Treatment of Arrhythmias"

  2. Contemporary Challenges in Biomedical Research (OHRP), December, 2004

    "Informed Consent Issues"



Northwest EP Society Meeting
"Use of the Stereotaxis Magnetic System for Mapping and Ablation"


Women in Electrophysiology, Sonoma, NM
"Radiofrequency Catheter Ablation of Focal Atrial Fibrillation"

Annual Scientific Sessions of the North American Society of Pacing and ElectrophysiologyTutorial



  "Minimum Follow-Up of the ICD Patient" 


Allied Professionall

 "Work-up of Ventricular Tachycardia" 



  "Follow-up of ICD Patients" 



"Troublesome Arrhythmias in the ICD Patient" 


Human Research Protection, St. Petersburg State, St. Petersburg, Russia


Lecture series in Human Research Protection 

Clinical Activities
OU Physicians Faculty clinical practice - 1 day/week
Oklahoma Medical Specialists clinic, Midwest City - 2 afternoons/month

Service to Professional Societies
University of Oklahoma Health Sciences Center (Service):


  1. Institutional Review Board

  2.  2000-present

    IRB Chairperson







  3. Campus Tenure Committee  

  4. 1998-2001

    Committee Member

  5. Institutional Biosafety Committee  

  6. 2006-present

    Ad hoc member


  1. Program Director, Clinical Cardiac Electrophysiology Fellowship 2000-present

  2. College of Medicine Admissions  

  3. 1999-2003 

    Board Member


  1. CCU Director

  2.  1999-2002

  3. Special Care Committee

  4. 2000-2001 


  1. Abstract Grader: North American Society of Pacing and Electrophysiology/Heart Rhythm Society
    2005 27th Annual Scientific Session
    2004 26th Annual Scientific Sessions
    2003 25th Annual Scientific Sessions

  2. Grant Reviewer: 2004 VA Merit Review
    2003 VA Merit Review

  3. Co-Chairman of Abstract Presentations: American Heart Association
    2005 78th Annual Scientific Session ICDs: Defibrillation and Antitachycardia Pacing
    North American Society of Pacing and Electrophysiology/Heart Rhythm Society
    2006 27th Annual Scientific Session ICD: Outcomes

  4. Human Research Ethics
    Partnership for Human Research Protection, Inc. (Survey assessor) 2004-2005

Editorial Services (Journal Reviewer)
American Heart Journal
American Journal of Physiology
Journal of American College of Cardiology
Journal of Cardiovascular Electrophysiology
Journal of Clinical Pharmacology

ADMINISTRATION (College and University Service)
Director, Cardiac Electrophysiology Fellowship Program 2000-present
Institutional Review Board Chairman 2000-present
Institutional Review Board Vice Chairman 1997-2000
Institutional Review Board Member 1993-1997


Scholarly, Professional, and Scientific Memberships
Fellow, American College of Cardiology
Member, Heart Rhythm Society (formerly North American Society of Pacing and Electrophysiology)
Member, American Heart Association
Member, Applied Research Ethics National Association

Awards, Honors, Special Recognition
Albert S. Hyman Fellow, North American Society of Pacing 1985-1986
and Electrophysiology
Chief Cardiology Fellow, University of Illinois at Chicago 1984-1985
Honors Program in Medical Education 1974-1980
Northwestern University, Chicago

Continuing Medical Education


1/06 Advanced Cardiac Life Support, OKC VAMC 

8 hours

5/06 CITI Program: Refresher Course in the Protection of Human Research Subjects

2 hours

5/06 Heart Rhythm Society, 27th Annual Scientific Session, Boston

15 hours


4/05 Continuing Education IC, Provider interaction, supervision,disclosure

4 hours

5/05 Heart Rhythm Society, Annual Scientific Session, New Orleans



1.5 hours

11/05 American Heart Association, Annual Scientific Session, Dallas TX 


12/05 PRIMER/ARENA Annual Conference, Boston MAOUHSC


Medical Grand Rounds 

19 hours

OUHSC Cardiology Grand Rounds 

16 hours


64. hours




5/19-22 NASPE/Heart Rhythm Society, Annual Scientific Session, San Francisco, CA

13 hours

OUHSC Medicine Grand Round 

10 hours

OUHSC Cardiology Grand Rounds 

20 hours

OUHSC Medicine Research Seminar  

1 hour

PRIMER/ARENA Annual IRB Conference, San Diego, CA  

15 hours

Contemporary Challenges in Biomedical Research, OKC, OK 

7 hours


63 hours


3/ American College of Cardiology, Annual Scientific Session, Chicago, IL 

10.5 hours

5/North American Society of Pacing and Electrophysiology, Washington DC

10 hours

12/ PRIM&R Annual IRB conference 

16.25 hours

OUHSC Medicine Grand Rounds 

10 hours

OUHSC Cardiology Grand Rounds 

17 hours


62.5 hours

The Human Side of Medicine 2004-2005