J F Ren

Summary

Affiliation: University of Pennsylvania
Country: USA

Publications

  1. ncbi request reprint Clinical use of AcuNav diagnostic ultrasound catheter imaging during left heart radiofrequency ablation and transcatheter closure procedures
    Jian Fang Ren
    Division of Cardiovascular Medicine, Department of Medicine, University of Pennsylvania School of Medicine, Philadelphia 19104, USA
    J Am Soc Echocardiogr 15:1301-8. 2002
  2. ncbi request reprint Intracardiac echocardiographic evaluation of ventricular mural swelling from radiofrequency ablation in chronic myocardial infarction: irrigated-tip versus standard catheter
    J F Ren
    Division of Cardiovascular Medicine, Department of Medicine, University of Pennsylvania, Philadelphia, PA 19104 2692, USA
    J Interv Card Electrophysiol 5:27-32. 2001
  3. ncbi request reprint Changes in local wall thickness correlate with pathologic lesion size following radiofrequency catheter ablation: an intracardiac echocardiographic imaging study
    J F Ren
    Cardiac Electrophysiology Research Laboratory, University of Pennsylvania, MSRL Building at Presbyterian Medical Center, Mail Box 225, 39th and Market Streets, Philadelphia, PA 19104 2692, USA
    Echocardiography 18:503-7. 2001
  4. ncbi request reprint Echocardiographic lesion characteristics associated with successful ablation of inappropriate sinus tachycardia
    J F Ren
    Department of Medicine, University of Pennsylvania School of Medicine, Philadelphia, USA
    J Cardiovasc Electrophysiol 12:814-8. 2001
  5. ncbi request reprint Narrowing of the superior vena cava-right atrium junction during radiofrequency catheter ablation for inappropriate sinus tachycardia: analysis with intracardiac echocardiography
    D J Callans
    Clinical Electrophysiology Laboratory of the Allegheny University Hospitals, MCP and Hahnemann Divisions, Philadelphia, Pennsylvania, USA
    J Am Coll Cardiol 33:1667-70. 1999
  6. ncbi request reprint Intracardiac echocardiography (9 MHz) in humans: methods, imaging views and clinical utility
    J F Ren
    Department of Medicine, MCP Hahnemann University, Philadelphia, PA, USA
    Ultrasound Med Biol 25:1077-86. 1999
  7. ncbi request reprint Effects of linear, irrigated-tip radiofrequency ablation in porcine healed anterior infarction
    D J Callans
    Department of Medicine, University of Pennsylvania School of Medicine, Philadelphia 19104, USA
    J Cardiovasc Electrophysiol 12:1037-42. 2001
  8. ncbi request reprint Electroanatomic left ventricular mapping in the porcine model of healed anterior myocardial infarction. Correlation with intracardiac echocardiography and pathological analysis
    D J Callans
    Arrhythmia Research Laboratory, Allegheny University Hospital, Hahnemann Division, Philadelphia, PA, USA
    Circulation 100:1744-50. 1999
  9. ncbi request reprint Electrogram-guided radiofrequency catheter ablation of atrial tissue comparison with thermometry-guide ablation: comparison with thermometry-guide ablation
    D Schwartzman
    Electrophysiology Research Laboratory, Allegheny University of the Health Sciences, Philadelphia, PA, USA
    J Interv Card Electrophysiol 5:253-66. 2001
  10. ncbi request reprint Accuracy of fluoroscopic localization of the Crista terminalis documented by intracardiac echocardiography
    F E Marchlinski
    Electrophysiology Section, Allegheny University Hospitals MCP and the University of Pennsylvania Health System, Philadelphia, PA 19104, USA
    J Interv Card Electrophysiol 4:415-21. 2000

Detail Information

Publications29

  1. ncbi request reprint Clinical use of AcuNav diagnostic ultrasound catheter imaging during left heart radiofrequency ablation and transcatheter closure procedures
    Jian Fang Ren
    Division of Cardiovascular Medicine, Department of Medicine, University of Pennsylvania School of Medicine, Philadelphia 19104, USA
    J Am Soc Echocardiogr 15:1301-8. 2002
    ..AcuNav ultrasound catheter (UC) (10F, 5.5-10 MHz) has unique advantages for left heart imaging with its 4-way tip flexible maneuverability, maximal 16-cm intracardiac imaging depth, and Doppler and color flow imaging capability...
  2. ncbi request reprint Intracardiac echocardiographic evaluation of ventricular mural swelling from radiofrequency ablation in chronic myocardial infarction: irrigated-tip versus standard catheter
    J F Ren
    Division of Cardiovascular Medicine, Department of Medicine, University of Pennsylvania, Philadelphia, PA 19104 2692, USA
    J Interv Card Electrophysiol 5:27-32. 2001
    ..This study compared the extent of mural swelling caused by linear ablation lesions created with irrigated tip and standard RF ablation in a porcine model of healed anterior infarction...
  3. ncbi request reprint Changes in local wall thickness correlate with pathologic lesion size following radiofrequency catheter ablation: an intracardiac echocardiographic imaging study
    J F Ren
    Cardiac Electrophysiology Research Laboratory, University of Pennsylvania, MSRL Building at Presbyterian Medical Center, Mail Box 225, 39th and Market Streets, Philadelphia, PA 19104 2692, USA
    Echocardiography 18:503-7. 2001
    ..This study investigated the correlation of changes in wall thickness at the ablation site with pathologic lesion size...
  4. ncbi request reprint Echocardiographic lesion characteristics associated with successful ablation of inappropriate sinus tachycardia
    J F Ren
    Department of Medicine, University of Pennsylvania School of Medicine, Philadelphia, USA
    J Cardiovasc Electrophysiol 12:814-8. 2001
    ..The purpose of this retrospective study was to define the echocardiographic characteristic changes associated with effective RF ablation for inappropriate sinus tachycardia...
  5. ncbi request reprint Narrowing of the superior vena cava-right atrium junction during radiofrequency catheter ablation for inappropriate sinus tachycardia: analysis with intracardiac echocardiography
    D J Callans
    Clinical Electrophysiology Laboratory of the Allegheny University Hospitals, MCP and Hahnemann Divisions, Philadelphia, Pennsylvania, USA
    J Am Coll Cardiol 33:1667-70. 1999
    ..The study explored the potential for tissue swelling and venous occlusion during radiofrequency (RF) catheter ablation procedures using intracardiac echocardiography (ICE)...
  6. ncbi request reprint Intracardiac echocardiography (9 MHz) in humans: methods, imaging views and clinical utility
    J F Ren
    Department of Medicine, MCP Hahnemann University, Philadelphia, PA, USA
    Ultrasound Med Biol 25:1077-86. 1999
    ....
  7. ncbi request reprint Effects of linear, irrigated-tip radiofrequency ablation in porcine healed anterior infarction
    D J Callans
    Department of Medicine, University of Pennsylvania School of Medicine, Philadelphia 19104, USA
    J Cardiovasc Electrophysiol 12:1037-42. 2001
    ..However, limited data exist regarding the characteristics of irrigated RF lesions in infarcted myocardium. This study addresses this shortcoming...
  8. ncbi request reprint Electroanatomic left ventricular mapping in the porcine model of healed anterior myocardial infarction. Correlation with intracardiac echocardiography and pathological analysis
    D J Callans
    Arrhythmia Research Laboratory, Allegheny University Hospital, Hahnemann Division, Philadelphia, PA, USA
    Circulation 100:1744-50. 1999
    ..Catheter ablation for ventricular tachycardia in healed infarction is limited to patients with inducible, tolerated arrhythmias. Strategies that would allow mapping during sinus rhythm might obviate this limitation...
  9. ncbi request reprint Electrogram-guided radiofrequency catheter ablation of atrial tissue comparison with thermometry-guide ablation: comparison with thermometry-guide ablation
    D Schwartzman
    Electrophysiology Research Laboratory, Allegheny University of the Health Sciences, Philadelphia, PA, USA
    J Interv Card Electrophysiol 5:253-66. 2001
    ..To characterize a new method for radiofrequency energy titration during ablation of atrial tissue based on reduction in electrogram amplitude. To compare this method with energy titration using electrode thermometry...
  10. ncbi request reprint Accuracy of fluoroscopic localization of the Crista terminalis documented by intracardiac echocardiography
    F E Marchlinski
    Electrophysiology Section, Allegheny University Hospitals MCP and the University of Pennsylvania Health System, Philadelphia, PA 19104, USA
    J Interv Card Electrophysiol 4:415-21. 2000
    ..ICE appears to facilitate and ensure accurate targeting of specific anatomic sites along the crista terminalis and thus may serve as an important adjunctive imaging technique in electrophysiology...
  11. ncbi request reprint Echocardiographic transponder-guided catheter ablation feasibility and accuracy
    V Menz
    Electrophysiology Research Laboratory, Philadelphia Heart Institute, Philadelphia, PA, USA
    J Interv Card Electrophysiol 5:203-9. 2001
    ..CONCLUSIONS: Echocardiographic transponder-guided catheter ablation is feasible. Accuracy for normal endocardial targets was excellent, less so for chronic infarction border...
  12. ncbi request reprint Esophageal imaging and strategies for avoiding injury during left atrial ablation for atrial fibrillation
    Jian Fang Ren
    Division of Cardiovascular Medicine, Department of Medicine, University of Pennsylvania, School of Medicine, Philadelphia, Pennsylvania 19104, USA
    Heart Rhythm 3:1156-61. 2006
    ..Esophageal injury has occurred during LA ablation for atrial fibrillation (AF). The ability to identify the esophagus and monitor LAPW lesions with intracardiac echocardiography (ICE) has not been documented...
  13. 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)...
  14. ncbi request reprint Real-time intracardiac echocardiographic imaging of the posterior left atrial wall contiguous to anterior wall of the esophagus
    Jian Fang Ren
    J Am Coll Cardiol 48:594; author reply 594-5. 2006
  15. ncbi request reprint Intracardiac echocardiography with different approaches for imaging of left atrial appendage
    Jian Fang Ren
    Heart Rhythm 3:623; author reply 623-4. 2006
  16. 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)...
  17. 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...
  18. 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
    ....
  19. ncbi request reprint Left atrial thrombus associated with ablation for atrial fibrillation: identification with intracardiac echocardiography
    Jian Fang Ren
    Department of Medicine, University of Pennsylvania, School of Medicine, Philadelphia, Pennsylvania 19104 2692, USA
    J Am Coll Cardiol 43:1861-7. 2004
    ..This study reports the incidence of, risk factors for, and management of left atrial (LA) thrombus documented by intracardiac echocardiography (ICE) during LA ablation for atrial fibrillation (AF)...
  20. ncbi request reprint Effect of heart rate and isoproterenol on pulmonary vein flow velocity following radiofrequency ablation: a Doppler color flow imaging study
    Jian Fang Ren
    Division of Cardiovascular Medicine, Department of Medicine, University of Pennsylvania, School of Medicine, Philadelphia, PA, USA
    J Interv Card Electrophysiol 10:265-9. 2004
    ..Factors unrelated to ablation that effect PV flow velocity have not been described...
  21. ncbi request reprint Age-dependent atrial remodeling induced by recombinant human interleukin-11: implications for atrial flutter/fibrillation
    Jiang Xu
    MCP Hahnemann University, Philadelphia, Pennsylvania 19102 1192, USA
    J Cardiovasc Pharmacol 39:435-40. 2002
    ..It was concluded that rhIL-11 induces age-dependent atrial remodeling manifested by atrial stretch and reduced atrial refractoriness, which favor AF. Na retention is the most likely mechanism underlying this effect of rhIL-11...
  22. ncbi request reprint A comparison of left atrial size by two-dimensional transthoracic echocardiography and magnetic endocardial catheter mapping
    Vickas V Patel
    Section of Electrophysiology, Cardiovascular Division, Department of Medicine, Hospital of the University of Pennsylvania, Philadelphia, Pennsylvania, USA
    Pacing Clin Electrophysiol 25:95-7. 2002
    ..MEAM appears to be an accurate method by which LA size can be assessed in patients with drug refractory atrial fibrillation undergoing left atrial ablation procedures...
  23. ncbi request reprint Left ventricular catheter ablation using direct, intramural ethanol injection in swine
    David J Callans
    Department of Medicine, University of Pennsylvania School of Medicine, Philadelphia, PA, USA
    J Interv Card Electrophysiol 6:225-31. 2002
    ..This study evaluated the safety and efficacy of myocardial ablation using direct intramural injection of ethanol with a novel injection catheter system...
  24. ncbi request reprint Intracardiac Doppler echocardiographic quantification of pulmonary vein flow velocity: an effective technique for monitoring pulmonary vein ostia narrowing during focal atrial fibrillation ablation
    Jian Fang Ren
    Department of Medicine, University of Pennsylvania, School of Medicine, Philadelphia 19104 2692, USA
    J Cardiovasc Electrophysiol 13:1076-81. 2002
    ..The AcuNav ultrasound catheter can image PV flow and quantify peak velocity and may be useful in assessing the degree of narrowing of PV ostia...
  25. ncbi request reprint Atrial tachycardia successfully treated by electrical isolation of the superior vena cava
    Edward P Gerstenfeld
    University of Pennsylvania Health System, Philadelphia, Pennsylvania, USA
    Pacing Clin Electrophysiol 26:906-10. 2003
    ..Electroanatomic mapping and intracardiac echocardiography were used to monitor the ablation and document patency of the superior vena cava throughout the ablation...
  26. 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
    ....
  27. ncbi request reprint Intracardiac ultrasound catheter imaging for electrophysiologic substrate of AV nodal reentrant tachycardia: anatomic versus electrophysiologic evidence
    Jian Fang Ren
    J Cardiovasc Electrophysiol 15:274-5. 2004
  28. ncbi request reprint Utility of intracardiac echocardiography in left heart ablation for tachyarrhythmias
    Jian Fang Ren
    Department of Medicine, Division of Cardiovascular Medicine, University of Pennsylvania, PA 19104 2692, USA
    Echocardiography 24:533-40. 2007
    ....
  29. ncbi request reprint Risk stratification of women with peripartum cardiomyopathy at initial presentation: a dobutamine stress echocardiography study
    Sharmila Dorbala
    Division of Cardiology, Department of Medicine, Hahnemann University Hospital, Philadelphia, Pennsylvania
    J Am Soc Echocardiogr 18:45-8. 2005
    ..We sought to determine the prognostic use of inotropic contractile reserve on risk stratification and prognostication of women with peripartum cardiomyopathy...