Loren D. Berenbom, MD

Professor of Medicine - Cardiology
Director, Bloch Heart Rhythm Center
Medical School, Northwestern University School of Medicine, Chicago, Illinois
Residency, Washington University School of Medicine, Barnes-Jewish Hospital, St. Louis, Missouri
Fellowship, Washington University School of Medicine, Barnes-Jewish Hospital, St. Louis Missouri (Cardiology and Electrophysiology)


Clinical Interests

  • Heart Rhythm Management
  • Implantable Defibrillators
  • Implantable Pacemakers
  • Radiofrequency Ablation
  • Lead Extraction
  • Cardiac Resynchronization Therapy
  • Hypertrophic Cardiomyopathy

Research Interests

  • Arrhythmia management
  • Hypertrophic cardiomyopathy
  • Inherited rhythm disorders
  • Implantable cardiac rhythm management devices

Research Projects

Active projects

  • Attain Performa Quadripolar Lead Clinical Study sponsored by Medtronic.
  • A study of lead extractions, sponsored by Medtronic.
  • A post-approval registry of the SJ4 connector, sponsored by St. Jude Medical.
  • St. Jude Medical Product Longevity & Performance Registry (SCORE), sponsored by St. Jude Medical.

Selected Publications

  • Lakkireddy D, Kanmanthareddy A, Biria M, Reddy YM, Pillarisetti J, Mahapatra S, Berenbom L, Chinitz L, Atkins D, Bommana S, Tung R, DI Biase L, Shivkumar K, Natale A. Radiofrequency Ablation of Drug Refractory Ventricular Tachycardia Related to Cocaine Use: A Feasibility, Safety and Efficacy Study. J Cardiovasc Electrophysiol. 2014 Apr 11. doi: 10.1111/jce.12432. [Epub ahead of print] PubMed PMID: 24724798.
  • Pillarisetti J, Reddy N, Biria M, Ryschon K, Nagarajan D, Murray C, Atkins D, Bommana S, Reddy MY, Dibiase L, Pimentel R, Berenbom L, Dawn B, Natale A, Lakkireddy D. Elevated brain natriuretic peptide level in patients undergoing atrial fibrillation ablation: is it a predictor of failed ablation or a mere function of atrial rhythm and rate at a point in time? J Interv Card Electrophysiol. 2014 May 8. [Epub ahead of print] PubMed PMID: 24800931 
  • Vallakati A, Reddy YM, Emert M, Janga P, Mansour MC, Heist EK, Pimentel R, Dendi R, Atkins D, Bommana S, Mahapatra S, Heard M, Ruskin J, Berenbom L, Dawn B, Lakkireddy D. Impact of nonfluoroscopic MediGuideTM tracking system on radiation exposure in radiofrequency ablation procedures (LESS-RADS registry)-an initial experience. J Interv Card Electrophysiol. 2013 Nov;38(2):95-100. doi: 10.1007/s10840-013-9825-3. Epub 2013 Sep 12. PubMed PMID: 24026968.
  •  Jayasree Pillarisetti MD, Sowjanya Duthuluru MD, Hari Sayana MD, Haley Goucher Goucher BA, Akshar Patel BA, Mazda Biria MD, James Vacek MD, Loren Berenbom MD, Sudharani Bommana M.Phil, Jayan Nath MD, Mark Wiley MD, Ajay Nangia MD, Luigi Di Biase MD, Andrea Natale MD, Madhuri Reddy MD, Buddhadeb Dawn, MD, Dhanunjaya Lakkireddy MD. Age-Dependent Impact of Fluoroscopic Radiation on the Gender of Off-Spring: An International Survey of Cardiologists. Journal of Atrial Fibrillation. Online publication 2013(5). 
  • Anand Pillai MD, Madhu Reddy MD, Michael Heard BS, Ajay Vallakati MD, Loren Berenbom MD, Dhanunjaya Lakkireddy MD. Atrial Flutter Ablation Using MediGuideTM Non-fluoroscopic Catheter Tracking System: A Novel Technology to Reduce Radiation Exposure. Journal of Atrial Fibrillation. Online publication 2012(5). 
  • Lakkireddy D, Nagarajan D, Di Biase L, Vanga SR, Mahapatra S, Bunch TJ, Day JD, Burkhardt DJ, Umbarger L, Dendi R, Pimentel R, Berenbom L, Emert M, Gerken A, Bommana S, Ray W, Atkins D, Murray C, Dawn B, Natale A. Radio Frequency Ablation (RFA) of Atrial Fibrillation in Patients with Mitral or Aortic Mechanical Prosthetic Valves - A Feasibility, Safety and Efficacy Study. Heart Rhythm. 2011;8(7):975-80.
  • Pillarisetti J, Biria M, Balda A, Reddy N, Berenbom L, Lakkireddy D. Integrity of vascular access: the story of a broken sheath! J Vasc Nurs. 2009 Sep;27(3):75-7.
  • Vanga S, Vacek J, Berenbom L, Lakkireddy D. Ventricular tachycardia storm - an atypical presentation of sarcoidosis exacerbation. Indian Pacing Electrophysiol J 2009;9(6):351-354.
  • Pillarisetti J, Nath J, Berenbom L, Lakkireddy D. Cardiac cirrhosis: a rare manifestation of an uncorrected primum atrial septal defect. J Cardiovasc Med (Hagerstown). 2009 Dec 3. [Epub ahead of print].
  • Kondur AK, Afonso LC, Berenbom LD, Lakkireddy DR. Implantable cardioverter defibrillators save lives from lightning-related electrocution too! Pacing Clin Electrophysiol. 2008 Feb;31(2):256-7 
  • Biria M, Batrash A, Piallarisetti J, Vacek J, Berenbom L, Lakkireddy, D. Underutilization of Warfarin Therapy in Elderly Patients with Atrial Fibrillation - Fear or False Sense of Security! Journal of Atrial Fibrillation. 2008; doi: 10.4022/jafib.v1i1.393
  • Lakkireddy D, Rangisetty U, Prasad S, Verma A, Biria M, Berenbom L, Pimentel R, Emert M, Rosamond T, Fahmy T, Patel D, Di Biase L, Schweikert R, Burkhardt D, Natale A. Intracardiac echo guided radiofrequency catheter ablation of atrial fibrillation in patients with atrial septal defect (ASD) or patent foramen ovale (PFO) repair: a feasibility, safety and efficacy study. J Cardiovasc Electrophysiol. 2008 Nov;19(11):1137-42. Epub 2008 Jul 25.
  • Vanga S, Biria M, Berenbom L, Vacek J, Lakkireddy D. Skin burn at the site of indifferent electrode after radiofrequency catheter ablation of AV node for atrial fibrillation. Journal of Atrial Fibrillation. Online publication 7/16/08: 10.4022/jafib.v1i1.406.
  • Kreighbaum K, Berenbom L. Design of an outpatient atrial fibrillation center of excellence: current experience with the delivery of pre-procedure and post-procedure care. Journal of Atrial Fibrillation. Online publication 7/16/08. doi: 10.4022/jafib.v1i1.4065.

Selected Abstracts Presented at National Meetings

  • Reddy M, Vallakati A, Janga P,Sharma S, Pillai A, Dendi R, Emert M, Berenbom L, Pimentel RL, Lakkireddy D. Externalization of conductor cables in quicksite and quickflex left ventricular leads.J Am Coll Cardiol. 2013;61(10_S):. doi:10.1016/S0735-1097(13)60247-8.
  • Sridhar A, Reddy M, Parasa S, Janga P, Vallakati A, Berenbom L, Dawn B, Lakkireddy D. Trends of Lead Extractions for Cardiac Implanted Device Related Infections: Results from Nationwide Inpatient Sample for years 2003 to 2009.Heart Rhythm, 2013;10(5):S67-68.
  • Reddy M, Vallakati A, Janga P, Sharma S, Pillai A, Dendi R, Emert M, Berenbom L, Pimentel R, Lakkireddy D. Exterilization of Conductor Cables in QuickSite and QuickFlex Left Ventricular Leads. Heart Rhythm Society Annual Meeting 2013. Heart Rhythm, 2013;10(5):S70.  
  • Reddy M, Boolani H, Duthuluru S, Reddy N, Williamson T, Spikes L, Bommana S, Atkins D, Chikkam V, Pillarisetti J, Berenbom L, Dendi R, Emert M, Pimentel R, Lakkireddy D. Complications of Implantable Cardiac-Defibrillator Implantation in Patients With Pulmonary Hypertension.J Am Coll Cardiol. 2012;59(13s1):E708-E708. doi:10.1016/S0735-1097(12)60709-8.
  • Pillarisetti J, Biria M, Reddy M, Atkins D, Pimentel R, Berenbom L, Emert M, Dendi R, Reddy N, Murray C, Bommana S, Dawn B, Lakkireddy D. Impact of Pocket Revision on the Rate of Infection and Other Complications in Patients Requiring Pocket Manipulation for Generator Replacement and/or Lead Replacement or Revision (MAKE IT CLEAN): A Prospective Randomized Study. Heart Rhythm, 2012;9(5):S25.
  • Reddy M, Chaung J, Boolani H, Atrouni W, Atkins D, Bommana S, Pimentel R, Emert M, Berenbom L, Vacek J, Lakkireddy D, and Dendi R. Long-term Mortality After Cardiovascular Implantable Electronic Device Infection. Circulation. 2012;126:A17922
  • Reddy M, Berenbom L, Reddy N, Atkins D, Bhaktiani R, Bommana S, Pimentel R, Emert M, Dendi R, and Lakkireddy D. Increasing Complexity of Sprint Fidelis Lead Extraction: A Single Center Experience.Circulation. 2012;126:A17906  
  • Nagarajan DV, Vanga SR, Biria M, Chikkam V, Ittaman S, Shanberg D, Jeevanantham V, Berenbom L, Emert M, Pimentel R, Dendi R, Umberger L, Bommana S, DiBiasi L, Natale A, Dawn B, Lakkireddy D. Can CHADS2 score predict the outcomes of radiofrequency ablation in patients with atrial fibrillation? Heart Rhythm 2011;8(5):S449.
  • Biria M, Mahapatra S, Vanga S, Nagarajan D, Bommana S, Dendi R, Mohtashemipour H, Emert M, Berenbom L, Pimentel R, Lakkireddy D. Characterization and radiofrequency ablation ventricular tachycardia in patients with cocaine use unresponsive to medical therapy. Heart Rhythm 2001;8(5):S481.
  • Lakkireddy D, Pillarisetti J, Atkins D, Vanga SR, Emert M, Pimentel R, Murray C, Bommana S, Ryschon K, Berenbom L, Dawn B, Dendi R, Drisko J. Impact of yoga on arrhythmia burden and quality of life (QoL) in patients with symptomatic paroxysmal atrial fibrillation. J Am Coll Cardiol 2011;57:E129.
  • Vanga SR, Biria M, Pillarisetti J, Atikins D, Murray C, Chen W, Berenbom L, Emert M, Pimentel R, Dendi R, Bommana S, Vacek J, Dawn B, Di Biasi L, Natale A, Lakkireddy D. Radiofrequency ablation improves quality of life scores not only in patients with atrial fibrillation but their significant others too! J Am Coll Cardiol 2011;57:E132.  
  • Pillarisetti J, Falbe J, Dendi R, Pimentel R, Emert M, Lakkireddy D, Berenbom L. Experience with Fidelis Lead Extractions at a Single Academic Center. Presented at the 59th Annual ACC Scientific Sessions 2010, March 14-16 2010, Atlanta Georgia.
  • Vanga S, Subramaniyam P, Berenbom L, Emert M, Pimentel R, Dendi R, Lakkireddy D. Narrowing of Pulmonary Vein Ostial Dimensions After Isolation in Patients with Atrial Fibrillation: True Stenosis or Volume Reduction? Presented at the 2010 Heart Rhythm Society Annual Meeting, May 12-15 2010, Denver Colorado.
  • Vanga S, Bicknell D, Dendi R, Pimentel R, Berenbom L, Emert M, Gerken A, Newton D, Natale A, Di Biase L, Dawn B, Lakkireddy D. Radio Frequency Ablation (RFA) for Sinus Rhythm Restoration in Atrial Fibrillation Patients with Mitral or Aortic Mechanical Prosthetic Valves - Feasibility, Safety and Efficacy. Presented at the 2010 Heart Rhythm Society Annual Meeting, May 12-15 2010, Denver Colorado.
  • Subramaniyam P, Vanga S, Guda R, Kumari P, Murray C, Berenbom L, Pimentel R, Emert M, Dendi R, Salmons J, Lakkireddy D. Prevalence of Posttraumatic Stress Disorder, Anxiety, Depression, Phantom Shocks and Lead Failure in Patients with Medtronic Sprint Fidelis ICD Leads. Presented at the 2010 Heart Rhythm Society Annual Meeting, May 12-15 2010, Denver Colorado.
  • Pillarisetti J, Biria M, Emert M, Chotia R, Guda R, Vacek J, Dendi R, Pimentel R, Berenbom L, Lakkireddy D. Reasons for Under-Utilization of Implantable Cardioverter Defibrillators in Patients with Heart Failure. Presented at the 2010 Heart Rhythm Society Annual Meeting, May 12-15 2010, Denver Colorado.
  • Biria M, Pillarisetti J, Reddy N, Murray C, Patel P, Vanga S, Dendi R, Pimentel R, Emert M, Berenbom L, Vacek J, Lakkireddy D. Elevated Beta Natriuretic Peptide Levels in Patients with Atrial Fibrillation: Is it a Predictor of Successful Ablation or a Mere Function of Point in Time Atrial Rhythm? Presented at the 2010 Heart Rhythm Society Annual Meeting, May 12-15 2010, Denver Colorado.   
  • Reddy N, Seim N, Pillarisetti J, Boc K, Chen W, Ryschon K, Dendi R, Berenbom L, Vacek J, Lakkireddy D. Accurate Measurement of QT Interval During Administration of QT prolonging Anti Arrhythmic Drugs: Is the tangent technique more appropriate? Presented at the 2009 Heart Rhythm Society Annual Meeting, May 13-16 2009, Boston Massachusetts.
  • Lakkireddy D, Pillarisetti J, Verma A, Pimentel R, Vanga S, Rajoli S, Berenbom L, Emert M, Dendi R, Rosamond T. Impact of Common Pulmonary Veins (CPV) on the Short Term Outcomes of Radiofrequency Catheter Ablation of Atrial Fibrillation (AF). Presented at the 2009 Heart Rhythm Society Annual Meeting, May 13-16 2009, Boston Massachusetts.
  • Vanga S, Pillarisetti J, Biria M, Rajoli S, Berenbom L, Pimentel R, Emert M, Dendi R, Lakkireddy D. Overcoming Fluid Overload After Atrial Fibrillation Ablation with an Open Irrigated Catheter: Role of Scheduled Diuresis and Electrolyte Replacement. Presented at the 2009 Heart Rhythm Society Annual Meeting, May 13-16 2009, Boston Massachusetts.
  • Lakkireddy D, Pillarisetti J, Verma A, Natale A, Berenbom L, Emert M, Pimentel R, Dendi R. Radiofrequency Ablation in Patients with Recurrent Symptomatic Atrial Fibrillation and Gastro Esophageal Reflux Disease (GERD)/Irritable Bowel Syndrome (IBS) - The Heart to Gut Connection. Presented at the 2009 Heart Rhythm Society Annual Meeting, May 13-16 2009, Boston Massachusetts.
  • Pillarisetti J, Lakkireddy D, Tadros P, Sayana H, Goucher H, Duthuluru S, Patel A, Biria M, Vacek J, Berenbom L, Gupta K, Nath J, Wiley M. Interventional Cardiologists and Electrophysiologists Beware! - Your Job Can Impact the Gender of Your Offspring Too! Presented at the 2009 Heart Rhythm Society Annual Meeting, May 13-16 2009, Boston Massachusetts.
  • Lakkireddy D, Biria M, Pillarisetti J, Verma A, Vanga S, Pimentel R, Emert M, Berenbom L, Dendi R. Sinus Node Dysfunction, Tachy-brady Rhythm, & Extensive Biatrial Scarring - Recognizing a New Clinical Syndrome of Atriomyopathy in Patients with Atrial Fibrillation. Presented at the American Heart Association Scientific Sessions 2009, November 14-18 2009, Orlando Florida.  
  • Biria M, Pillarisetti J, Annapureddy C, Baryun E, Newton D, Kreighbaum K, Murray C, Staley J, Berenbom L, Pimentel R, Vanga S, Vacek J, Emert M, Nath J, Rosamond T, Raxwal V, Mulhern K, Gupta K, Verma A, Lakkireddy D. Cardiac Resynchronization Therapy Alters Progression of Diastolic Dysfunction. Presented at the 2008 Heart Rhythm Society Annual Meeting, May 14-17 2008, San Francisco California.
  • Baryun E, Biria M, Berenbom L, Mulhern K, Rosamond T, Pimentel R, Emert M, Ray W, Lakkireddy D. Remote Magnetic Navigation and Ablation of Intra-atrial Reentrant Tachycardia Via a Retrograde Approach in a Patients with Post Mustard D-TGA. Presented at the 2008 Heart Rhythm Society Annual Meeting, May 14-17 2008, San Francisco California.
  • Biria M, Pillarisetti J, Annapureddy C, Baryun E, Newton D, Kreighbaum K, Murray C, Staley J, Berenbom L, Pimentel R, Vanga S, Vacek J, Emert M, Porter C, Genton R, Nath J, Gupta K, Lakkireddy D. The Impact of Cardiac Resynchronization Therapy on Kansas City Cardiomyopathy Questionnaire (KCCQ) Score in Patients with Congestive Heart Failure. Presented at the 2008 Heart Rhythm Society Annual Meeting, May 14-17 2008, San Francisco California.
  • Simmons A, Rosamond T, Nath J, Lakkireddy D, Wetzel L, Vacek J, Pimentel R, Emert E, Berenbom L, Biria M. 64 slice Cardiac CTA in the Diagnosis of Left Atrial Appendage Thrombus: Comparison to Transesophageal Echocardiography. Presented at the 14th World Congress on Heart Disease - International Academy of Cardiology Annual Scientific Sessions 2008, July 26-29 2008, Toronto Ontario, Canada.
  • Biria M, Annapureddy C, Newton D, Pillarisetti J, Baryun E, Berenbom L, Pimentel R, Vanga S, Vacek J, Emert M, Nath J, Verma A, Khaykin Y, Natale A, Murray C, Staley J, Lakkireddy D. Leukocytosis Post Atrial Fibrillation Ablation - Is There A Reason To Worry? Presented at the 14th World Congress on Heart Disease - International Academy of Cardiology Annual Scientific Sessions 2008, July 26-29 2008, Toronto Ontario, Canada.
  • Biria M, Baryun E, Vacek J, Dalton K, Earnest M, Emert M, Pimentel R, Lakkireddy D, Berenbom L. Outcomes and Cost Analysis of Transvenous vs. Prophylactic Intraoperative Implantation of CRT Leads (PROPEL study). Presented at the 14th World Congress on Heart Disease - International Academy of Cardiology Annual Scientific Sessions 2008, July 26-29 2008, Toronto Ontario, Canada.
Last modified: Jul 23, 2014

Loren D. Berenbom, MD

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Loren D. Berenbom, MD
Professor of Medicine - Cardiology
Director, Bloch Heart Rhythm Center

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