Guilherme Fenelon

Summary

Country: Brazil

Publications

  1. ncbi Acute and chronic effects of extensive radiofrequency lesions in the canine caval veins: implications for ablation of atrial arrhythmias
    Guilherme Fenelon
    Department of Cardiology, Paulista School of Medicine, Federal University if São Paulo, Sao Paulo, SP, Brazil
    Pacing Clin Electrophysiol 29:1387-94. 2006
  2. ncbi Atrial fibrillation ablation in Brazil: results of the registry of the Brazilian Society of Cardiac Arrhythmias
    Guilherme Fenelon
    Escola Paulista de Medicina, Universidade Federal de Sao Paulo, Sao Paulo, SP, Brasil
    Arq Bras Cardiol 89:258-62, 285-9. 2007
  3. ncbi Characterization of the acute cardiac electrophysiologic effects of ethanol in dogs
    Guilherme Fenelon
    Department of Cardiology, Paulista School of Medicine, Federal University of Sao Paulo, Sao Paulo, SP, Brazil
    Alcohol Clin Exp Res 31:1574-80. 2007
  4. ncbi Epicardial radiofrequency ablation of ventricular myocardium: factors affecting lesion formation and damage to adjacent structures
    Guilherme Fenelon
    Department of Cardiology, Paulista School of Medicine, Federal University of Sao Paulo, Sao Paulo, SP, Brazil
    J Interv Card Electrophysiol 15:57-63. 2006
  5. ncbi Combined therapy with steroids and antioxidants prevents ultrastructural damage surrounding chronic radiofrequency lesions
    Guilherme Fenelon
    Department of Cardiology, Paulista School of Medicine, Federal University of Sao Paulo, Sao Paulo, SP, Brazil
    Pacing Clin Electrophysiol 27:65-72. 2004
  6. ncbi Effects of corticosteroid therapy on the long-term outcome of radiofrequency lesions in the Swine caval veins
    Guilherme Fenelon
    Department of Cardiology, Paulista School of Medicine, Federal University of Sao Paulo, Brazil
    Pacing Clin Electrophysiol 31:1010-9. 2008
  7. ncbi Steroids prevent late extension of radiofrequency lesions in the thigh muscle of infant rats: implications for pediatric ablation
    Guilherme Fenelon
    Department of Cardiology, Paulista School of Medicine, Federal University of Sao Paulo, Pedro de Toledo 781, 10th Floor Cardiology, Sao Paulo, SP 04039 032, Brazil
    J Interv Card Electrophysiol 9:7-13. 2003
  8. ncbi Characterization of the in vivo cardiac electrophysiologic effects of high-dose cocaine in closed-chest, anesthetized dogs with normal hearts
    Guilherme Fenelon
    Paulista School of Medicine, Federal University of Sao Paulo, Sao Paulo, SP, Brazil
    Arq Bras Cardiol 81:29-34, 23-8. 2003
  9. ncbi Left ventricular dysfunction is associated with prolonged average ventricular fibrillation cycle length in patients with implantable cardioverter defibrillators
    Guilherme Fenelon
    Brigham and Women s Hospital and Harvard Medical School, Boston, Massachusetts, USA
    J Interv Card Electrophysiol 7:249-54. 2002
  10. ncbi Impact of corticosteroids on late growth of radiofrequency lesions in infant pigs: histopathological and electroanatomical findings
    Elerson Arfelli
    Discipline of Cardiology, Paulista School of Medicine, Federal University of São Paulo São Paulo, Rua Napoleao de Barros 715, SP 04039 030, Sao Paulo, Brazil
    Europace 13:121-8. 2011

Collaborators

  • Bruce S Stambler
  • W G Stevenson
  • Mauricio Ibrahim Scanavacca
  • Martino Martinelli
  • P A Friedman
  • Mieko Okada
  • Angelo de Paola
  • Luis Felipe Dos Santos
  • Thais Nascimento
  • Marcello Franco
  • Angelo A V de Paola
  • Paulo Tucci
  • Gabriela Venturini
  • Sergio Araújo
  • Luis F Dos Santos
  • Sérgio de Araujo
  • Elerson Arfelli
  • Carlos E B Balbão
  • Luiz R Leite
  • Ednei Luiz Antonio
  • Jairo Montemor
  • Andrey Jorge Serra
  • Fernanda Mota
  • Andrey Serra
  • Ednei Antonio
  • Luis Felipe N dos Santos
  • Sérgio de Araújo
  • Aloyr Simoes
  • Georgia G Silva

Detail Information

Publications19

  1. ncbi Acute and chronic effects of extensive radiofrequency lesions in the canine caval veins: implications for ablation of atrial arrhythmias
    Guilherme Fenelon
    Department of Cardiology, Paulista School of Medicine, Federal University if São Paulo, Sao Paulo, SP, Brazil
    Pacing Clin Electrophysiol 29:1387-94. 2006
    ..We explored the acute and chronic angiographic and pathological effects of extensive RF ablation in the caval veins...
  2. ncbi Atrial fibrillation ablation in Brazil: results of the registry of the Brazilian Society of Cardiac Arrhythmias
    Guilherme Fenelon
    Escola Paulista de Medicina, Universidade Federal de Sao Paulo, Sao Paulo, SP, Brasil
    Arq Bras Cardiol 89:258-62, 285-9. 2007
    ....
  3. ncbi Characterization of the acute cardiac electrophysiologic effects of ethanol in dogs
    Guilherme Fenelon
    Department of Cardiology, Paulista School of Medicine, Federal University of Sao Paulo, Sao Paulo, SP, Brazil
    Alcohol Clin Exp Res 31:1574-80. 2007
    ..Alcohol has been related to atrial fibrillation (holiday heart syndrome), but its electrophysiologic actions remain unclear...
  4. ncbi Epicardial radiofrequency ablation of ventricular myocardium: factors affecting lesion formation and damage to adjacent structures
    Guilherme Fenelon
    Department of Cardiology, Paulista School of Medicine, Federal University of Sao Paulo, Sao Paulo, SP, Brazil
    J Interv Card Electrophysiol 15:57-63. 2006
    ..Catheter irrigation allows delivery of high power outputs to the epicardium consistently creating deeper lesions than standard ablation. TS electrodes may reduce damage to neighboring structures during epicardial RF ablation...
  5. ncbi Combined therapy with steroids and antioxidants prevents ultrastructural damage surrounding chronic radiofrequency lesions
    Guilherme Fenelon
    Department of Cardiology, Paulista School of Medicine, Federal University of Sao Paulo, Sao Paulo, SP, Brazil
    Pacing Clin Electrophysiol 27:65-72. 2004
    ..Zone C was essentially normal in all groups. Combined therapy with steroids, verapamil, and allopurinol is effective in limiting US damage surrounding chronic RF lesions...
  6. ncbi Effects of corticosteroid therapy on the long-term outcome of radiofrequency lesions in the Swine caval veins
    Guilherme Fenelon
    Department of Cardiology, Paulista School of Medicine, Federal University of Sao Paulo, Brazil
    Pacing Clin Electrophysiol 31:1010-9. 2008
    ..We explored the angiographic and pathological effects of corticosteroids on the long-term outcome of radiofrequency (RF) ablation lesions in the swine caval veins...
  7. ncbi Steroids prevent late extension of radiofrequency lesions in the thigh muscle of infant rats: implications for pediatric ablation
    Guilherme Fenelon
    Department of Cardiology, Paulista School of Medicine, Federal University of Sao Paulo, Pedro de Toledo 781, 10th Floor Cardiology, Sao Paulo, SP 04039 032, Brazil
    J Interv Card Electrophysiol 9:7-13. 2003
    ..Because late lesion extension may be involved in this phenomenon, we evaluated the impact of corticosteroids on the healing of RF lesions created in the thigh muscle of 29 infant Wistar rats (30 days; 55 g)...
  8. ncbi Characterization of the in vivo cardiac electrophysiologic effects of high-dose cocaine in closed-chest, anesthetized dogs with normal hearts
    Guilherme Fenelon
    Paulista School of Medicine, Federal University of Sao Paulo, Sao Paulo, SP, Brazil
    Arq Bras Cardiol 81:29-34, 23-8. 2003
    ..To characterize the cardiac electrophysiologic effects of cocaine...
  9. ncbi Left ventricular dysfunction is associated with prolonged average ventricular fibrillation cycle length in patients with implantable cardioverter defibrillators
    Guilherme Fenelon
    Brigham and Women s Hospital and Harvard Medical School, Boston, Massachusetts, USA
    J Interv Card Electrophysiol 7:249-54. 2002
    ..We hypothesized that the VFCL increases with left ventricular (LV) dysfunction. Therefore, we evaluated intracardiac VFCL recorded by implantable defibrillators (ICD) in patients with and without LV dysfunction...
  10. ncbi Impact of corticosteroids on late growth of radiofrequency lesions in infant pigs: histopathological and electroanatomical findings
    Elerson Arfelli
    Discipline of Cardiology, Paulista School of Medicine, Federal University of São Paulo São Paulo, Rua Napoleao de Barros 715, SP 04039 030, Sao Paulo, Brazil
    Europace 13:121-8. 2011
    ..We sought to assess the impact of these drugs on the late growth of RF lesions in immature swine myocardium and to determine the electroanatomical mapping (EAM) characteristics of these lesions...
  11. ncbi Characterization of sustained atrial tachycardia in dogs with rapid ventricular pacing-induced heart failure
    Bruce S Stambler
    Department of Medicine Cardiology, West Roxbury Veterans Affairs Medical Center, Harvard Medical School, West Roxbury, Massachusetts, USA
    J Cardiovasc Electrophysiol 14:499-507. 2003
    ..Atrial arrhythmias often complicate congestive heart failure (CHF). We characterized inducible atrial tachyarrhythmias and electrophysiologic alterations in dogs with CHF and atrial enlargement produced by rapid ventricular pacing...
  12. ncbi Focal origin of atrial tachycardia in dogs with rapid ventricular pacing-induced heart failure
    Guilherme Fenelon
    Department of Medicine, West Roxbury Veterans Affairs Medical Center, Harvard Medical School, West Roxbury, Massachusetts, USA
    J Cardiovasc Electrophysiol 14:1093-102. 2003
    ..Sites of earliest activation are distributed predominately along the crista terminalis and within or near the pulmonary veins...
  13. ncbi Impact of prophylactic corticosteroids on systemic inflammation after extensive atrial ablation in pigs
    Thais Nascimento
    Discipline of Cardiology, Paulista School of Medicine, Federal University of Sao Paulo, Pedro de Toledo 781, 10th Floor Cardiology, Sao Paulo, SP 04039 032, Brazil
    Europace 14:138-45. 2012
    ..5 irrigated tip) guided by electroanatomical mapping (NavX) in pigs with normal hearts...
  14. ncbi Examination of the in vivo cardiac electrophysiological effects of nesiritide (human brain natriuretic peptide) in conscious dogs
    Guilherme Fenelon
    Department of Medicine, West Roxbury Veterans Affairs Medical Center, Harvard Medical School, West Roxbury, Massachusetts, USA
    J Card Fail 8:320-5. 2002
    ..CONCLUSIONS: In conscious, healthy dogs, short-term infusion of recombinant hBNP has no significant effects on atrial or ventricular electrophysiologic parameters...
  15. ncbi Effects of alcohol on atrial fibrillation: myths and truths
    Carlos E B Balbão
    Paulista School of Medicine, Federal University of Sao Paulo, Sao Paulo, Brazil
    Ther Adv Cardiovasc Dis 3:53-63. 2009
    ..We then examine the literature and provide a critical point of view on the still elusive association between alcohol and atrial fibrillation...
  16. ncbi Effects of the corticosteroids in the lesions by radiofrequency on rats' thigh in different age groups
    Mieko Okada
    Escola Paulista de Medicina, Universidade Federal de Sao Paulo, Sao Paulo, SP, Brasil
    Arq Bras Cardiol 95:207-14. 2010
    ..The corticosteroids limit the late growth of the lesions by radiofrequency (RF) on the rats' infants' thighs, but the effects on the pubescent and adult rats are unknown...
  17. ncbi Thermotolerance does not reduce the size or remodeling of radiofrequency lesions in the rat myocardium
    Luis Felipe Dos Santos
    Discipline of Cardiology, Paulista School of Medicine, Federal University of Sao Paulo, Pedro de Toledo 781, 10th Floor Cardiology, Sao Paulo, SP 04039 032, Brazil
    J Interv Card Electrophysiol 36:5-11; discussion 11. 2013
    ..We evaluated the effects of thermotolerance on the dimensions and remodeling of RF lesions in a rat model of heart failure...
  18. ncbi Radiofrequency ablation does not induce apoptosis in the rat myocardium
    Luis F Dos Santos
    Discipline of Cardiology, Department of Pathology, Paulista School of Medicine, Federal University of Sao Paulo, Sao Paulo, Brazil
    Pacing Clin Electrophysiol 35:449-55. 2012
    ..The role of apoptosis in this process has not been previously reported. We assessed whether RF promotes apoptosis in the region surrounding acute ablation lesions in a rat model...
  19. ncbi Clinical usefulness of electrophysiologic testing in patients with ventricular tachycardia and chronic chagasic cardiomyopathy treated with amiodarone or sotalol
    Luiz R Leite
    Division of Cardiovascular Diseases and Internal Medicine, Mayo Clinic, Rochester, Minnesota 55905, USA
    J Cardiovasc Electrophysiol 14:567-73. 2003
    ..This may help in the selection of patients for implantable cardioverter defibrillator therapy...