Sanjay Dixit

Summary

Affiliation: University of Pennsylvania
Country: USA

Publications

  1. ncbi request reprint Elevated defibrillation thresholds in patients undergoing biventricular defibrillator implantation: incidence and predictors
    Sumeet K Mainigi
    Department of Medicine, Electrophysiology Section, Division of Cardiovascular Medicine, University of Pennsylvania School of Medicine, Philadelphia, 19104, USA
    Heart Rhythm 3:1010-6. 2006
  2. ncbi request reprint Twelve-lead ECG features to identify ventricular tachycardia arising from the epicardial right ventricle
    Victor Bazan
    Cardiovascular Division, Department of Medicine, Hospital of the University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA
    Heart Rhythm 3:1132-9. 2006
  3. doi request reprint Randomized ablation strategies for the treatment of persistent atrial fibrillation: RASTA study
    Sanjay Dixit
    Cardiovascular Division, Hospital of the University of Pennsylvania, Philadelphia, PA 19104, USA
    Circ Arrhythm Electrophysiol 5:287-94. 2012
  4. ncbi request reprint Favorable effect of pulmonic vein isolation by partial circumferential ablation on ostial flow velocity
    Sanjay Dixit
    Cardiovascular Medicine Division, Hospital of the University of Pennsylvania, Philadelphia, Pennsylvania, USA
    Heart Rhythm 1:262-7. 2004
  5. ncbi request reprint Mechanisms underlying sustained firing from pulmonary veins: evidence from pacing maneuvers and pharmacological manipulation
    Sanjay Dixit
    Hospital of the University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA
    Pacing Clin Electrophysiol 27:1120-9. 2004
  6. doi request reprint Noncontact electroanatomic mapping to characterize typical atrial flutter: participation of right atrial posterior wall in the reentrant circuit
    Sanjay Dixit
    Cardiovascular Division, Hospital of the University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA
    J Cardiovasc Electrophysiol 22:422-30. 2011
  7. ncbi request reprint Identification of distinct electrocardiographic patterns from the basal left ventricle: distinguishing medial and lateral sites of origin in patients with idiopathic ventricular tachycardia
    Sanjay Dixit
    Cardiac Electrophysiology Section, University of Pennsylvania Health System, Philadelphia, Pennsylvania, USA
    Heart Rhythm 2:485-91. 2005
  8. ncbi request reprint Reentrant and nonreentrant forms of atrio-ventricular nodal tachycardia mimicking atrial fibrillation
    Sanjay Dixit
    Cardiac Electrophysiology Section, University of Pennsylvania Health System, Philadelphia, Pennsylvania, USA
    J Cardiovasc Electrophysiol 17:312-6. 2006
  9. doi request reprint Arrhythmogenic potential of pulmonary venous tissue: triggers for atrial fibrillation identified within the remnant of a vein
    Sanjay Dixit
    Cardiovascular Division, Hospital of the University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA
    J Cardiovasc Electrophysiol 20:441-4. 2009
  10. ncbi request reprint Comparison of cool tip versus 8-mm tip catheter in achieving electrical isolation of pulmonary veins for long-term control of atrial fibrillation: a prospective randomized pilot study
    Sanjay Dixit
    Cardiovascular Division, Hospital of the University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA
    J Cardiovasc Electrophysiol 17:1074-9. 2006

Collaborators

Detail Information

Publications80

  1. ncbi request reprint Elevated defibrillation thresholds in patients undergoing biventricular defibrillator implantation: incidence and predictors
    Sumeet K Mainigi
    Department of Medicine, Electrophysiology Section, Division of Cardiovascular Medicine, University of Pennsylvania School of Medicine, Philadelphia, 19104, USA
    Heart Rhythm 3:1010-6. 2006
    ..Given reported risk factors for elevated defibrillation thresholds (DFTs), patients undergoing biventricular ICD placement would be suspected of having a higher incidence of elevated DFT...
  2. ncbi request reprint Twelve-lead ECG features to identify ventricular tachycardia arising from the epicardial right ventricle
    Victor Bazan
    Cardiovascular Division, Department of Medicine, Hospital of the University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA
    Heart Rhythm 3:1132-9. 2006
    ..Usefulness of 12-lead ECG for predicting an epicardial origin for ventricular tachycardia (VT) arising from the right ventricle (RV) has not been assessed. An epicardial approach is sometimes warranted to eliminate RV VT...
  3. doi request reprint Randomized ablation strategies for the treatment of persistent atrial fibrillation: RASTA study
    Sanjay Dixit
    Cardiovascular Division, Hospital of the University of Pennsylvania, Philadelphia, PA 19104, USA
    Circ Arrhythm Electrophysiol 5:287-94. 2012
    ..Adjunctive techniques have been developed to enhance single-procedure efficacy in these patients. We conducted a study to compare 3 ablation strategies in patients with persistent AF...
  4. ncbi request reprint Favorable effect of pulmonic vein isolation by partial circumferential ablation on ostial flow velocity
    Sanjay Dixit
    Cardiovascular Medicine Division, Hospital of the University of Pennsylvania, Philadelphia, Pennsylvania, USA
    Heart Rhythm 1:262-7. 2004
    ..The aim of this study was to determine the effect of electrical isolation of pulmonic vein (PV) on flow velocity...
  5. ncbi request reprint Mechanisms underlying sustained firing from pulmonary veins: evidence from pacing maneuvers and pharmacological manipulation
    Sanjay Dixit
    Hospital of the University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA
    Pacing Clin Electrophysiol 27:1120-9. 2004
    ..Its response to pacing maneuvers argues against sustained reentry and supports triggered activity and/or abnormal automaticity as the mechanisms underlying the phenomenon...
  6. doi request reprint Noncontact electroanatomic mapping to characterize typical atrial flutter: participation of right atrial posterior wall in the reentrant circuit
    Sanjay Dixit
    Cardiovascular Division, Hospital of the University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA
    J Cardiovasc Electrophysiol 22:422-30. 2011
    ..However, it is unclear how the right atrial (RA) posterior wall (PW) participates in AFLT circuit. We sought to investigate this by using noncontact electroanatomic mapping...
  7. ncbi request reprint Identification of distinct electrocardiographic patterns from the basal left ventricle: distinguishing medial and lateral sites of origin in patients with idiopathic ventricular tachycardia
    Sanjay Dixit
    Cardiac Electrophysiology Section, University of Pennsylvania Health System, Philadelphia, Pennsylvania, USA
    Heart Rhythm 2:485-91. 2005
    ..Idiopathic ventricular tachycardias (IVTs) can originate from the basal left ventricle (LV)...
  8. ncbi request reprint Reentrant and nonreentrant forms of atrio-ventricular nodal tachycardia mimicking atrial fibrillation
    Sanjay Dixit
    Cardiac Electrophysiology Section, University of Pennsylvania Health System, Philadelphia, Pennsylvania, USA
    J Cardiovasc Electrophysiol 17:312-6. 2006
    ..Atrial fibrillation (AF) manifests disorganized atrial activity and irregular R-R intervals on electrocardiogram (ECG). Variation in R-R intervals can also be seen with other supraventricular tachycardias that may mimic AF...
  9. doi request reprint Arrhythmogenic potential of pulmonary venous tissue: triggers for atrial fibrillation identified within the remnant of a vein
    Sanjay Dixit
    Cardiovascular Division, Hospital of the University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA
    J Cardiovasc Electrophysiol 20:441-4. 2009
    ....
  10. ncbi request reprint Comparison of cool tip versus 8-mm tip catheter in achieving electrical isolation of pulmonary veins for long-term control of atrial fibrillation: a prospective randomized pilot study
    Sanjay Dixit
    Cardiovascular Division, Hospital of the University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA
    J Cardiovasc Electrophysiol 17:1074-9. 2006
    ..To compare safety and efficacy of 8-mm versus cooled tip catheter in achieving electrical isolation (EI) of pulmonary veins (PV) for long-term control of atrial fibrillation (AF)...
  11. doi request reprint Single procedure efficacy of isolating all versus arrhythmogenic pulmonary veins on long-term control of atrial fibrillation: a prospective randomized study
    Sanjay Dixit
    Cardiovascular Division, Hospital of The University of Pennsylvania and Center for Clinical Epidemiology and Biostatistics, University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA
    Heart Rhythm 5:174-81. 2008
    ..Current atrial fibrillation (AF) ablation involves isolation of all pulmonary veins (PVs) with or without additional linear lesions. However, whether such extensive ablation is necessary is unclear...
  12. ncbi request reprint Electroanatomic mapping of human heart: epicardial fat can mimic scar
    Sanjay Dixit
    Hospital of the University of Pennsylvania, Philadelphia, Pennsylvania, USA
    J Cardiovasc Electrophysiol 14:1128. 2003
  13. ncbi request reprint Frequent additional tachyarrhythmias in patients with inappropriate sinus tachycardia undergoing sinus node modification: an important cause of symptom recurrence
    David S Frankel
    Cardiovascular Division, Electrophysiology Section, Hospital of the University of Pennsylvania, Philadelphia, PA, USA
    J Cardiovasc Electrophysiol 23:835-9. 2012
    ..The impact of non-IST tachyarrhythmias on symptom recurrence remains poorly characterized...
  14. doi request reprint Noninvasive programmed ventricular stimulation early after ventricular tachycardia ablation to predict risk of late recurrence
    David S Frankel
    Cardiovascular Division, Electrophysiology Section, Hospital of the University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA
    J Am Coll Cardiol 59:1529-35. 2012
    ..The goal of this study was to evaluate the ability of noninvasive programmed stimulation (NIPS) after ventricular tachycardia (VT) ablation to identify patients at high risk of recurrence...
  15. ncbi request reprint Pulmonary vein antral isolation and nonpulmonary vein trigger ablation without additional substrate modification for treating longstanding persistent atrial fibrillation
    David Lin
    Hospital of the University of Pennsylvania, Section of Cardiac Electrophysiology, Division of Cardiology, Department of Medicine, Philadelphia, PA, USA
    J Cardiovasc Electrophysiol 23:806-13. 2012
    ..We sought to describe clinical outcomes with this ablation strategy in patients (pts) followed for at least 1 year...
  16. ncbi request reprint Surface electrocardiogram characteristics of atrial tachycardias occurring after pulmonary vein isolation
    Edward P Gerstenfeld
    Section of Cardiac Electrophysiology, Division of Cardiology, Department of Medicine, University of Pennsylvania Health System, Philadelphia, Pennsylvania 19104, USA
    Heart Rhythm 4:1136-43. 2007
    ..The purpose of this study was to describe the surface electrocardiogram (ECG) morphology of common atrial tachycardias (ATs) that occur after pulmonary vein (PV) isolation...
  17. doi request reprint Lack of uniform progression of endocardial scar in patients with arrhythmogenic right ventricular dysplasia/cardiomyopathy and ventricular tachycardia
    Michael P Riley
    Section of Cardiac Electrophysiology, Cardiovascular Division, Department of Medicine, Hospital of the University of Pennsylvania, 3400 Spruce St, Philadelphia, PA 19104, USA
    Circ Arrhythm Electrophysiol 3:332-8. 2010
    ..Many clinical decisions and treatment plans are guided by this pathophysiologic assumption, but the extent of progression of macroscopic endocardial scar and right ventricular (RV) dilatation have not been assessed...
  18. doi request reprint Reversal of outflow tract ventricular premature depolarization-induced cardiomyopathy with ablation: effect of residual arrhythmia burden and preexisting cardiomyopathy on outcome
    Stavros E Mountantonakis
    Electrophysiology Section, Cardiovascular Division, Department of Medicine, Hospital of the University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA
    Heart Rhythm 8:1608-14. 2011
    ..Limited data exist regarding the outcome after ablation of outflow tract VPDs from the LV and the impact of residual VPDs or preexisting LVCM prior to the diagnosis of VPDs on recovery of LV function...
  19. ncbi request reprint Nearly uniform failure of atrial flutter ablation and continuation of antiarrhythmic agents (hybrid therapy) for the long-term control of atrial fibrillation
    Nicholas Anastasio
    Cardiovascular Division, Electrophysiology Section, Hospital of the University of Pennsylvania, 9 Founders Pavilion, 3400 Spruce Street, Philadelphia, PA 19104, USA
    J Interv Card Electrophysiol 35:57-61. 2012
    ..Previous studies with 2-3-year follow-up have reported satisfactory control of AF burden...
  20. ncbi request reprint Incidence and predictors of very late recurrence of atrial fibrillation after ablation
    Sumeet K Mainigi
    Electrophysiology Section, Division of Cardiovascular Medicine, Department of Medicine, University of Pennsylvania School of Medicine, Philadelphia, Pennsylvania 19104, USA
    J Cardiovasc Electrophysiol 18:69-74. 2007
    ..Radiofrequency catheter ablation can effectively treat patients with refractory atrial fibrillation (AF). Very late AF recurrence (> or = 12 months post-ablation) is uncommon and may represent a unique patient cohort...
  21. ncbi request reprint Mechanisms of organized left atrial tachycardias occurring after pulmonary vein isolation
    Edward P Gerstenfeld
    Hospital of the University of Pennsylvania, 9 Founders Pavilion, 3400 Spruce St, Philadelphia, PA 19104, USA
    Circulation 110:1351-7. 2004
    ..This arrhythmia is frequently referred to as "left atrial flutter," but the mechanism and best ablation strategy have not been determined...
  22. ncbi request reprint Effect of pulmonary vein isolation on the left-to-right atrial dominant frequency gradient in human atrial fibrillation
    Sorin Lazar
    Department of Medicine, Electrophysiology Division, University of Pennsylvania Health System, Philadelphia, 19104, USA
    Heart Rhythm 3:889-95. 2006
    ..One possible mechanism of the left-to-right dominant frequency gradient involves the role of the pulmonary veins (PVs) in AF maintenance...
  23. ncbi request reprint Long-term outcome after successful catheter ablation of atrial fibrillation
    Wendy S Tzou
    Section of Cardiac Electrophysiology, Division of Cardiology, Department of Medicine, Hospital of the University of Pennsylvania, Philadelphia, PA, USA
    Circ Arrhythm Electrophysiol 3:237-42. 2010
    ..We determined 5-year outcomes of PVI among patients with freedom from AF off antiarrhythmic drugs (AAD) for 1 year after PVI...
  24. doi request reprint Apical ventricular tachycardia morphology in left ventricular nonischemic cardiomyopathy predicts poor transplant-free survival
    David S Frankel
    Electrophysiology Section, Cardiovascular Division, Hospital of the University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA
    Heart Rhythm 10:621-6. 2013
    ..The scar of patients with left ventricular (LV) nonischemic cardiomyopathy (NICM) and ventricular tachycardia (VT) typically originates at or near the mitral annulus and extends a variable distance toward the apex...
  25. doi request reprint Percutaneous epicardial ventricular tachycardia ablation after noncoronary cardiac surgery or pericarditis
    Cory M Tschabrunn
    Cardiac Electrophysiology Program, Cardiovascular Medicine Division, Hospital of the University of Pennsylvania, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA
    Heart Rhythm 10:165-9. 2013
    ..Percutaneous pericardial access is known to be difficult in these patients owing to the presence of pericardial adhesions...
  26. doi request reprint Relationship between voltage map "channels" and the location of critical isthmus sites in patients with post-infarction cardiomyopathy and ventricular tachycardia
    Stavros E Mountantonakis
    Department of Medicine, Section of Cardiac Electrophysiology, Hospital of University of Pennsylvania, Philadelphia, Pennsylvania, USA
    J Am Coll Cardiol 61:2088-95. 2013
    ..The goal of this study was to determine the relationship of the ventricular tachycardia (VT) isthmus to channels of preserved voltage on an electroanatomic voltage map in postinfarction cardiomyopathy...
  27. doi request reprint Long-term clinical efficacy and risk of catheter ablation for atrial fibrillation in the elderly
    Erica Zado
    Cardiovascular Division, Department of Medicine, Hospital of the University of Pennsylvania, Philadelphia, Pennsylvania, USA
    J Cardiovasc Electrophysiol 19:621-6. 2008
    ..The number of elderly patients with atrial fibrillation (AF) is increasing rapidly, and the safety and efficacy of catheter ablation in this demographic group has not been established...
  28. doi request reprint Effect of pulmonary vein isolation on the distribution of complex fractionated electrograms in humans
    Jean Francois Roux
    Section of Cardiovascular Electrophysiology, Cardiovascular Division, Department of Medicine, Hospital of the University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA
    Heart Rhythm 6:156-60. 2009
    ..However, it is unclear whether CFEs should be targeted before or after PVI...
  29. ncbi request reprint Idiopathic fascicular left ventricular tachycardia: linear ablation lesion strategy for noninducible or nonsustained tachycardia
    David Lin
    Hospital of the University of Pennsylvania, University of Pennsylvania Health Systems, Department of Medicine, Electrophysiology Section, Philadelphia, Pennsylvania 19104, USA
    Heart Rhythm 2:934-9. 2005
    ..The mechanism of the arrhythmia has been suggested to be reentry involving a sizable area of the LV inferior septum extending from base toward the apex...
  30. pmc Endocardial unipolar voltage mapping to detect epicardial ventricular tachycardia substrate in patients with nonischemic left ventricular cardiomyopathy
    Mathew D Hutchinson
    Cardiovascular Division, Department of Medicine, University of Pennsylvania School of Medicine, Philadelphia, PA, USA
    Circ Arrhythm Electrophysiol 4:49-55. 2011
    ..The purpose of this study was to determine whether ENDO unipolar (UNI) mapping with a larger electric field of view could identify EPI low bipolar (BIP) voltage regions in patients with LVCM undergoing Vt ablation...
  31. ncbi request reprint Atrioventricular nodal reentrant tachycardia in patients referred for atrial fibrillation ablation: response to ablation that incorporates slow-pathway modification
    William H Sauer
    Electrophysiology Section, Cardiovascular Division, Department of Medicine, University of Pennsylvania Health System, Philadelphia, PA, USA
    Circulation 114:191-5. 2006
    ..We sought to characterize patients with AF and AVNRT and assess clinical outcomes after ablation...
  32. ncbi request reprint Efforts to enhance catheter stability improve atrial fibrillation ablation outcome
    Mathew D Hutchinson
    Cardiovascular Division, Department of Medicine, Hospital of University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA
    Heart Rhythm 10:347-53. 2013
    ....
  33. ncbi request reprint Predictors of recovery of left ventricular dysfunction after ablation of frequent ventricular premature depolarizations
    Marc W Deyell
    Electrophysiology Section, Hospital of the University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA
    Heart Rhythm 9:1465-72. 2012
    ..Frequent ventricular premature depolarizations (VPDs) can cause reversible left ventricular (LV) dysfunction. However, not all patients normalize their LV function after VPD elimination...
  34. doi request reprint Ablation of ventricular arrhythmias arising near the anterior epicardial veins from the left sinus of Valsalva region: ECG features, anatomic distance, and outcome
    Miguel E Jauregui Abularach
    Electrophysiology Section, Cardiovascular Division, Department of Medicine, Hospital of the University of Pennsylvania, Philadelphia, PA 19104, USA
    Heart Rhythm 9:865-73. 2012
    ..Left ventricular outflow tract tachycardia/premature depolarizations (VT/VPDs) arising near the anterior epicardial veins may be difficult to eliminate through the coronary venous system...
  35. doi request reprint Electrocardiographic and electrophysiologic features of ventricular arrhythmias originating from the right/left coronary cusp commissure
    Rupa Bala
    Electrophysiology Section, Cardiovascular Division, Department of Medicine, University of Pennsylvania School of Medicine, Philadelphia, Pennsylvania, USA
    Heart Rhythm 7:312-22. 2010
    ..Ventricular arrhythmias are known to originate from the aortic sinus of Valsalva...
  36. ncbi request reprint Site-specific twelve-lead ECG features to identify an epicardial origin for left ventricular tachycardia in the absence of myocardial infarction
    Victor Bazan
    Cardiovascular Division, Department of Medicine, Hospital of the University of Pennsylvania, Philadelphia, PA, USA
    Heart Rhythm 4:1403-10. 2007
    ..Reported criteria, although helpful, may not apply uniformly to all LV regions...
  37. pmc Assessing epicardial substrate using intracardiac echocardiography during VT ablation
    Rupa Bala
    Cardiovascular Division, Department of Medicine, University of Pennsylvania School of Medicine, Philadelphia, PA 19104, USA
    Circ Arrhythm Electrophysiol 4:667-73. 2011
    ..The purpose of this study was to assess whether ICE could identify abnormal epicardial substrate in patients with nonischemic cardiomyopathy (NICM) and VT...
  38. doi request reprint Antiarrhythmics After Ablation of Atrial Fibrillation (5A Study)
    Jean Francois Roux
    Department of Medicine, Hospital of the University of Pennsylvania, Philadelphia, PA 19104, USA
    Circulation 120:1036-40. 2009
    ..Atrial arrhythmias are common early after atrial fibrillation (AF) ablation. We hypothesized that empirical antiarrhythmic drug (AAD) therapy for 6 weeks after AF ablation would reduce the occurrence of atrial arrhythmias...
  39. doi request reprint Assessing arrhythmia burden after catheter ablation of atrial fibrillation using an implantable loop recorder: the ABACUS study
    Suraj Kapa
    Division of Cardiology, Department of Medicine, Hospital of the University of Pennsylvania, Philadelphia, PA, USA
    J Cardiovasc Electrophysiol 24:875-81. 2013
    ..Implantable loop recorders (ILRs) may overcome these limitations. We sought to evaluate the utility of ILRs versus conventional monitoring (CM) in patients undergoing AF ablation...
  40. doi request reprint New unipolar electrogram criteria to identify irreversibility of nonischemic left ventricular cardiomyopathy
    Bieito Campos
    Electrophysiology Section, Cardiovascular Division, Department of Medicine, Hospital of the University of Pennsylvania, Philadelphia, PA 19104, USA
    J Am Coll Cardiol 60:2194-204. 2012
    ....
  41. doi request reprint Sinus rhythm ECG criteria associated with basal-lateral ventricular tachycardia substrate in patients with nonischemic cardiomyopathy
    Wendy S Tzou
    Section of Cardiac Electrophysiology, Division of Cardiology, Department of Medicine, Hospital of the University of Pennsylvania, Philadelphia, Pennsylvania, USA
    J Cardiovasc Electrophysiol 22:1351-8. 2011
    ..We sought to determine electrocardiogram (ECG) characteristics that may help identify NICM patients with basal-lateral scar and VT...
  42. ncbi request reprint Characteristics of patients undergoing atrial fibrillation ablation: trends over a seven-year period 1999-2005
    Edward P Gerstenfeld
    Section of Cardiac Electrophysiology, Division of Cardiology, Department of Medicine, University of Pennsylvania Health System, Philadelphia, Pennsylvania, USA
    J Cardiovasc Electrophysiol 18:23-8. 2007
    ..Catheter ablation procedures for treating atrial fibrillation (AF) have dramatically increased since triggers of AF were first described in 1998...
  43. doi request reprint Antiarrhythmics after ablation of atrial fibrillation (5A Study): six-month follow-up study
    Peter Leong-Sit
    Cardiac Electrophysiology Section, Cardiovascular Division, Department of Medicine, Hospital of the University of Pennsylvania, Philadelphia, PA, USA
    Circ Arrhythm Electrophysiol 4:11-4. 2011
    ..Whether early rhythm suppression decreases longer-term arrhythmia recurrence is unknown. We now report the 6-month follow-up data from this study...
  44. doi request reprint Electroanatomic substrate and ablation outcome for suspected epicardial ventricular tachycardia in left ventricular nonischemic cardiomyopathy
    Oscar Cano
    Electrophysiology Section, Cardiovascular Division, Department of Medicine, University of Pennsylvania School of Medicine, Philadelphia, Pennsylvania, USA
    J Am Coll Cardiol 54:799-808. 2009
    ..The aim of the study was to define the epicardial substrate and ablation outcome in patients with left ventricular nonischemic cardiomyopathy (NICM) and suspected epicardial ventricular tachycardia (VT)...
  45. ncbi request reprint Predictors of success after selective pulmonary vein isolation of arrhythmogenic pulmonary veins for treatment of atrial fibrillation
    Edward P Gerstenfeld
    University of Pennsylvania Health System, Philadelphia, Pennsylvania 19104, USA
    Heart Rhythm 3:165-70. 2006
    ..Atrial fibrillation (AF) ablation procedures typically involve isolation of all pulmonary veins (PVs) in addition to adjunctive linear lesions, yet the need for such an extensive ablation strategy in all patients is unclear...
  46. doi request reprint Characterization of the phrenic nerve course within the epicardial substrate of patients with nonischemic cardiomyopathy and ventricular tachycardia
    Roger Fan
    Department of Medicine, Cardiovascular Division, Electrophysiology Section, University of Pennsylvania School of Medicine, Philadelphia, Pennsylvania, USA
    Heart Rhythm 6:59-64. 2009
    ..The course of the left phrenic nerve in this region may pose a challenge to successful and safe ablation...
  47. doi request reprint Idiopathic right ventricular arrhythmias not arising from the outflow tract: prevalence, electrocardiographic characteristics, and outcome of catheter ablation
    Hugo Van Herendael
    Electrophysiology Section, Cardiovascular Division, Department of Medicine, Hospital of the University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA
    Heart Rhythm 8:511-8. 2011
    ..Most idiopathic right ventricular (RV) ventricular tachycardias (VTs) originate from the outflow tract. Data on VT from the lower body of the RV are limited...
  48. doi request reprint Localization of atrial fibrillation triggers in patients undergoing pulmonary vein isolation: importance of the carina region
    Ermengol Valles
    Department of Medicine, Cardiovascular Division, Electrophysiology Section, University of Pennsylvania School of Medicine, Philadelphia, Pennsylvania, USA
    J Am Coll Cardiol 52:1413-20. 2008
    ..This study sought to identify the origin within the pulmonary vein (PV) of reproducible atrial fibrillation (AF) triggers...
  49. ncbi request reprint ECG criteria for localizing the pulmonary vein origin of spontaneous atrial premature complexes: validation using intracardiac recordings
    Yadavendra S Rajawat
    Section of Cardiac Electrophysiology, Division of Cardiovascular Diseases, University of Pennsylvania Health System, Philadelphia, Pennsylvania, USA
    Pacing Clin Electrophysiol 27:182-8. 2004
    ....
  50. ncbi request reprint Electroanatomic substrate and outcome of catheter ablative therapy for ventricular tachycardia in setting of right ventricular cardiomyopathy
    Francis E Marchlinski
    Electrophysiology Section, Division of Cardiology, University of Pennsylvania Health System, Philadelphia, PA, USA
    Circulation 110:2293-8. 2004
    ....
  51. doi request reprint Twelve-lead electrocardiographic characteristics of the aortic cusp region guided by intracardiac echocardiography and electroanatomic mapping
    David Lin
    Cardiovascular Division, Section of Electrophysiology, Hospital of the University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA
    Heart Rhythm 5:663-9. 2008
    ..Idiopathic VT also can arise from the left ventricular outflow tract and the surrounding structures. Morphologic descriptions of 12-lead ECG characteristics of the aortic cusp region are limited...
  52. ncbi request reprint Efficacy of repeat pulmonary vein isolation procedures in patients with recurrent atrial fibrillation
    David J Callans
    Electrophysiology Section, Division of Cardiology, Department of Medicine, University of Pennsylvania School of Medicine, Philadelphia, Pennsylvania 19104, USA
    J Cardiovasc Electrophysiol 15:1050-5. 2004
    ....
  53. ncbi request reprint Increased intensity of anticoagulation may reduce risk of thrombus during atrial fibrillation ablation procedures in patients with spontaneous echo contrast
    Jian Fang Ren
    Division of Cardiovascular Medicine, Department of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA
    J Cardiovasc Electrophysiol 16:474-7. 2005
    ..The aim of this study was to determine if the intensity of anticoagulation reduces LA thrombus formation during pulmonary vein isolation procedure in patients with AF and spontaneous echo contrast (SEC)...
  54. ncbi request reprint Efficacy and safety of targeted focal ablation versus PV isolation assisted by magnetic electroanatomic mapping
    Francis E Marchlinski
    Electrophysiology Section, Division of Cardiology, University of Pennsylvania Health System, Philadelphia, Pennsylvania 19104, USA
    J Cardiovasc Electrophysiol 14:358-65. 2003
    ....
  55. ncbi request reprint Change in distant atrial activation patterns during circumferential pacemapping of pulmonic vein ostium: implications for localizing triggers for atrial fibrillation
    Sanjay Dixit
    University of Pennsylvania Health System, Philadelphia, PA 19104, USA
    J Interv Card Electrophysiol 8:187-94. 2003
    ..Development of an accurate template requires knowledge of variations in activation pattern during pacing from different aspects of same PV...
  56. doi request reprint Feasibility of catheter ablation of mitral annular flutter in patients with prior mitral valve surgery
    Stavros Mountantonakis
    Section of Cardiac Electrophysiology, Hospital of the University of Pennsylvania, Philadelphia, Pennsylvania, USA
    Heart Rhythm 8:809-14. 2011
    ..Percutaneous catheter ablation may be challenging owing to the presence of surgical scar and a prosthetic MV...
  57. ncbi request reprint Reversal of left ventricular dysfunction following ablation of atrial fibrillation
    Philip J Gentlesk
    Cardiovascular Division, Department of Medicine, Hospital of the University of Pennsylvania, Philadelphia, Pennsylvania, USA
    J Cardiovasc Electrophysiol 18:9-14. 2007
    ..The outcome with AF ablation in patients with a decreased left ventricular ejection fraction (LVEF) may provide insight into this important clinical issue...
  58. ncbi request reprint Defibrillation threshold testing: is it really necessary at the time of implantable cardioverter-defibrillator insertion?
    Andrea M Russo
    University of Pennsylvania Health System, Philadelphia, Pennsylvania 19104, USA
    Heart Rhythm 2:456-61. 2005
    ....
  59. doi request reprint Risk of stroke and atrial fibrillation after radiofrequency catheter ablation of typical atrial flutter
    Todd T Tomson
    Hospital of University of Pennsylvania, and Philadelphia Veterans Affairs Medical Center, Philadelphia, Pennsylvania 19104, USA
    Heart Rhythm 9:1779-84. 2012
    ..However, little data exist about the incidence of and risk factors for stroke and AF after successful ablation of typical AFL...
  60. ncbi request reprint Incidence and location of focal atrial fibrillation triggers in patients undergoing repeat pulmonary vein isolation: implications for ablation strategies
    Edward P Gerstenfeld
    Hospital of the University of Pennsylvania, 9 Founders Pavilion, 3400 Spruce Street, Philadelphia, PA 19104, USA
    J Cardiovasc Electrophysiol 14:685-90. 2003
    ..The etiology of atrial fibrillation (AF) recurrences after pulmonary vein (PV) isolation is not well described. The aim of this study was to examine the reason for recurrent AF in patients undergoing a repeat attempt at AF trigger ablation...
  61. ncbi request reprint Quantitative comparison of spontaneous and paced 12-lead electrocardiogram during right ventricular outflow tract ventricular tachycardia
    Edward P Gerstenfeld
    Division of Cardiology, Department of Internal Medicine, University of Pennsylvania Medical Center, 3400 Spruce Street, Philadelphia, PA 19104, USA
    J Am Coll Cardiol 41:2046-53. 2003
    ..The purpose of this study was to objectively quantify the similarity of 12-lead electrocardiogram (ECG) waveforms using two quantitative metrics, the correlation coefficient (CORR) and the mean absolute deviation (MAD)...
  62. doi request reprint Isolated septal substrate for ventricular tachycardia in nonischemic dilated cardiomyopathy: incidence, characterization, and implications
    Haris M Haqqani
    Section of Cardiac Electrophysiology, Cardiovascular Division, Hospital of the University of Pennsylvania, Philadelphia, Pennsylvania, USA
    Heart Rhythm 8:1169-76. 2011
    ..The substrate for ventricular tachycardia (VT) in nonischemic cardiomyopathy (NICM) has a predilection for the basolateral left ventricle with right bundle branch block VT morphology...
  63. doi request reprint The V(2) transition ratio: a new electrocardiographic criterion for distinguishing left from right ventricular outflow tract tachycardia origin
    Brian P Betensky
    Section of Cardiac Electrophysiology, Department of Medicine, Hospital of the University of Pennsylvania, Philadelphia, Pennsylvania, USA
    J Am Coll Cardiol 57:2255-62. 2011
    ....
  64. ncbi request reprint Surgical ablation of refractory ventricular tachycardia in patients with nonischemic cardiomyopathy
    Elad Anter
    Cardiovascular Division, Department of Medicine, Hospital of the University of Pennsylvania, Philadelphia, PA, USA
    Circ Arrhythm Electrophysiol 4:494-500. 2011
    ..The purpose of this study was to evaluate the efficacy of preoperative electroanatomic and electrophysiological characterization of the VT substrate and circuit to guide surgical ablation...
  65. ncbi request reprint Proper management of pericardial tamponade as a late complication of implantable cardiac device placement
    Glenn M Polin
    Division of Cardiology, University of Pennsylvania Health System, Philadelphia, Pennsylvania, USA
    Am J Cardiol 98:223-5. 2006
    ..Once tamponade is recognized and treated, these patients appear well at long-term follow-up, with no other device-related problems. A role for lead manipulation does not appear to exist in the standard treatment of these patients...
  66. doi request reprint Complex fractionated electrogram distribution and temporal stability in patients undergoing atrial fibrillation ablation
    Jean Francois Roux
    Cardiovascular Division, Department of Medicine, Hospital of the University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA
    J Cardiovasc Electrophysiol 19:815-20. 2008
    ..Targeting of complex fractionated electrograms (CFEs) has been described as an approach for catheter ablation of atrial fibrillation (AF); however, the distribution and temporal stability of CFE regions remain poorly defined...
  67. ncbi request reprint Electrocardiographic patterns of superior right ventricular outflow tract tachycardias: distinguishing septal and free-wall sites of origin
    Sanjay Dixit
    Hospital of University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA
    J Cardiovasc Electrophysiol 14:1-7. 2003
    ....
  68. ncbi request reprint Use of noncontact mapping and saline-cooled ablation catheter for sinus node modification in medically refractory inappropriate sinus tachycardia
    David Lin
    Division of Cardiology, University of Pennsylvania Health Systems, Electrophysiology Section, Philadelphia, Pennsylvania, USA
    Pacing Clin Electrophysiol 30:236-42. 2007
    ..Radiofrequency (RF) modification of the sinus node (SN) is an accepted treatment modality for medically refractory IST. We describe a new technique using noncontact mapping and a saline irrigated catheter for SN modification...
  69. ncbi request reprint Presence of left-to-right atrial frequency gradient in paroxysmal but not persistent atrial fibrillation in humans
    Sorin Lazar
    Electrophysiology Division, Department of Medicine, University of Pennsylvania Health System, Philadelphia, PA, USA
    Circulation 110:3181-6. 2004
    ..We hypothesized that human AF would also manifest a left-to-right atrial frequency gradient...
  70. ncbi request reprint Case report: Placement of a coronary sinus lead in a patient with dextrocardia and situs inversus
    Paveljit S Bindra
    Division of Cardiac Electrophysiology, University of Pennsylvania Health System, Founders 9, 3400 Spruce Street, Philadelphia, PA 19104, USA
    J Interv Card Electrophysiol 16:93-5. 2006
    ..This case report describes techniques and equipment used to successfully place a coronary sinus lead in a patient with this congenital condition...
  71. ncbi request reprint Ventricular tachycardia/ventricular fibrillation ablation in the setting of ischemic heart disease
    Francis Marchlinski
    Electrophysiology Section, Division of Cardiology, University of Pennsylvania Health System, Philadelphia, Pennsylvania 19104, USA
    J Cardiovasc Electrophysiol 16:S59-70. 2005
    ..This article reviews the strategies, tools, techniques, and expected outcome for catheter ablation of stable and unstable ventricular arrhythmias in the setting ischemic heart disease...
  72. doi request reprint Ventricular arrhythmias in normal hearts
    Shuaib Latif
    Department of Medicine, Hospital of the University of Pennsylvania, Philadelphia, PA 19104, USA
    Cardiol Clin 26:367-80, vi. 2008
    ..In many cases, catheter ablation is successful and the therapy of choice in patients who have sufficient symptoms. This article reviews outflow tract, idiopathic left ventricular, and automatic ventricular tachycardias...
  73. ncbi request reprint Mapping for ventricular tachycardia
    Sanjay Dixit
    Section of Cardiac Electrophysiology, Hospital of the University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA
    Card Electrophysiol Rev 6:436-41. 2002
    ..Other recent advances such as percutaneous closed chest epicardial mapping technique and cooled tip ablation catheter technology have the potential to enhance mapping and successful ablation of VT...
  74. ncbi request reprint Elevations in ventricular pacing threshold with the use of the Y adaptor: implications for biventricular pacing
    Robert W Rho
    Section of Electrophysiology, Division of Cardiovascular Medicine, Hospital of the University of Pennsylvania, 3400 Spruce Street, Ninth Floor Founders Pavillion, Philadelphia, PA 19104, USA
    Pacing Clin Electrophysiol 26:747-51. 2003
    ..This observation has significant clinical implications as loss of capture may occur as a result of improper measurement of left ventricular thresholds at the time of implantation...
  75. ncbi request reprint Total failure to sense ventricular fibrillation with inappropriate defibrillator sensitivity adjustment
    David Lin
    Electrophysiology Service, Cardiovascular Division, University of Pennsylvania Health System, Philadelphia, Pennsylvania 19104, USA
    Pacing Clin Electrophysiol 27:1321-3. 2004
    ..We report a case of complete failure to sense ventricular fibrillation with inappropriate sensitivity adjustments. Detailed review of the parameters with induction of ventricular fibrillation must be performed to assure adequate safety...
  76. ncbi request reprint Interactions of antiarrhythmic drugs and implantable devices in controlling ventricular tachycardia and fibrillation
    Yadavendra S Rajawat
    University of Pennsylvania, 3400 Spruce Street, 9 Founders Pavilion, Philadelphia, PA 19104, USA
    Curr Cardiol Rep 4:434-40. 2002
    ..This review summarizes the benefits and adverse effects of ICD in combination with antiarrhythmic drug therapy, and provides guidelines to ensure safe application of this hybrid therapy...
  77. ncbi request reprint Utility of exit block for identifying electrical isolation of the pulmonary veins
    Edward P Gerstenfeld
    University of Pennsylvania Medical Center, Philadelphia 19104, USA
    J Cardiovasc Electrophysiol 13:971-9. 2002
    ..We describe a new technique for guiding PV isolation, using "exit block" out of the PV after ablation as a criterion for successful isolation...
  78. ncbi request reprint How to recognize, manage, and prevent complications during atrial fibrillation ablation
    Sanjay Dixit
    Cardiovascular Division, Hospital of the University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA
    Heart Rhythm 4:108-15. 2007
  79. ncbi request reprint Role of contact and noncontact mapping in the curative ablation of tachyarrhythmias
    Sanjay Dixit
    Section of Cardiac Electrophysiology, Hospital of the University of Pennsylvania, Philadelphia 19104, USA
    Curr Opin Cardiol 17:65-72. 2002
    ..The ability to localize and accurately display intracardiac catheter positioning and ablation lesion sites facilitate increasingly complex catheter ablation procedures...
  80. ncbi request reprint Asymptomatic nonsustained ventricular tachycardia during routine stress echocardiography
    Jeffrey A Olson
    Department of Cardiology, The Care Group, Indianapolis, IN, USA
    Chest 128:3565-7. 2005