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Title of Journal: J Interv Card Electrophysiol

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Abbravation: Journal of Interventional Cardiac Electrophysiology

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Springer US

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DOI

10.1016/0022-3093(82)90121-1

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ISSN

1572-8595

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Comparison between pulsed and continuous radiofreq

Authors: Ali Erdogan Eiko Walleck Sebastian Rueckleben Thomas Neumann Harald H Tillmanns Bernd Waldecker Hans Hoelschermann Martin Heidt
Publish Date: 2006/12/13
Volume: 20, Issue: 1-2, Pages: 21-24
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Abstract

Potentials arising in the pulmonary veins PV have been proposed to be a trigger of atrial fibrillation Percutaneously the best results for curative treatment of atrial fibrillation have been achieved by segmental or circumferential isolation of the PV The purpose of our study was to determine the feasibility of ostial pulmonary vein isolation and to compare continuous radiofrequency RF with pulsed RF concerning homogeneity and transmurality of produced lesionsIn vivo tests were performed in seven anesthetized and ventilated pigs Under fluoroscopy and guided by intracardiac electrograms each of the 28 pulmonary veins was targeted for circumferential isolation near its ostium After the continuous energy application in one PVostium the catheter was placed into the next PVostium and the same procedure was repeated using pulsed energy The ablations were performed with an octapolar circumferential ablation catheter with either continuous RF energy delivery to each electrode for 120 s or pulsed energy delivery to four electrodes simultaneously with a 5 ms duty cycle Lesion diameter was measured with a microcaliper and homogeneity classified from 1 highest to 4 leastMore homogeneous lesions were produced in significantly less time with pulsed rather than with continuous energy delivery There were no significant differences in impedance or temperature of the electrodes We did not observe tissue carbonization or “popping” pulmonary vein stenosis pericardial effusion/perforation at any timeOstial ablation of the PV with pulsed energy delivery proved feasible It was the faster and more reliable method of creating linear circumferential lesions with a maximum amount of homogeneity and transmurality We observed no elevated risk of PV stenosis during our experiments


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Other Papers In This Journal:

  1. Adenosine triphosphate-induced atrial fibrillation: the clinical significance and relevance to spontaneous atrial fibrillation
  2. Trends in percutaneous pericardial access during catheter ablation of ventricular arrhythmias: a single-center experience
  3. Factors associated with fluoroscopy exposure during pediatric catheter ablation utilizing electroanatomical mapping
  4. Electrophysiologic characteristics of atrial tachycardia originating from the superior vena cava
  5. Clinical evaluation of a new technique to monitor return electrode skin temperature during radiofrequency ablation
  6. Arrhythmia phenotype in mouse models of human long QT
  7. Contact force and impedance decrease during ablation depends on catheter location and orientation: insights from pulmonary vein isolation using a contact force-sensing catheter
  8. Long-term monitoring of respiratory rate in patients with heart failure: the Multiparametric Heart Failure Evaluation in Implantable Cardioverter-Defibrillator Patients (MULTITUDE-HF) study
  9. Association between red blood cell distribution width and response to cardiac resynchronization therapy
  10. Modification of atrioventricular conduction in dogs by laser irradiation of Koch’s triangle guided by balloon-tipped cardioscope
  11. Novel SCN5A mutations in two families with “Brugada-like” ST elevation in the inferior leads and conduction disturbances
  12. Clinical criteria for predicting benefit of ICD/PM in post myocardial infarction patients: an AVID and CAST analysis
  13. Characteristics and distribution of complex fractionated atrial electrograms in patients with paroxysmal and persistent atrial fibrillation
  14. Predictors of serious arrhythmic events in patients with nonischemic heart failure
  15. Ablation time efficiency and lesion volume - in vitro comparison of 4 mm, non irrigated, gold- and platinum-iridium-tip radiofrequency ablation catheters
  16. Late thromboembolic events after circumferential pulmonary vein ablation of atrial fibrillation
  17. Fluoroless catheter ablation in adults: a single center experience
  18. Patient care and physician conflicts of interests: the Hydra grows new heads but is any Hercules in sight?
  19. Cardiac calcified amorphous tumor in a patient presenting for ventricular tachycardia ablation: intracardiac echocardiogram diagnosis and management
  20. Atrial fibrillation ablation in patients with gastroesophageal reflux disease or irritable bowel syndrome—the heart to gut connection!
  21. Clinical outcome of left atrial ablation for paroxysmal atrial fibrillation is related to the extent of radiofrequency ablation
  22. Predictors of chronic pulmonary vein reconnections after contact force-guided ablation: importance of completing electrical isolation with circumferential lines and creating sufficient ablation lesion densities
  23. Left atrial posterior wall isolation: the icing on the cake
  24. Catheter ablation of arrhythmic storm triggered by monomorphic ectopic beats in patients with coronary artery disease
  25. Verapamil-sensitive left anterior fascicular ventricular tachycardia associated with a healed myocardial infarction: changes in the delayed Purkinje potential during sinus rhythm

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