Safe and rapid isolation of pulmonary veins using a novel circular ablation catheter and duty-cycled RF generator

Autor:	Clemens Jilek, Sabine Fredersdorf, Stefan Weber, Okka W. Hamer, Andreas Jeron, Günter A. Riegger, Christian Von Bary, Carsten Jungbauer, Norbert Heinicke
Rok vydání:	2009
Předmět:	Adult Male medicine.medical_specialty Radio Waves medicine.medical_treatment Ablation of atrial fibrillation Transducers Catheter ablation Pulmonary vein Heart Conduction System Physiology (medical) Atrial Fibrillation medicine Fluoroscopy Humans Vein Aged medicine.diagnostic_test business.industry Atrial fibrillation Equipment Design Middle Aged medicine.disease Ablation Surgery Equipment Failure Analysis Catheter medicine.anatomical_structure Pulmonary Veins Catheter Ablation Female Cardiology and Cardiovascular Medicine Nuclear medicine business
Zdroj:	Journal of cardiovascular electrophysiology. 20(10)
ISSN:	1540-8167
Popis:	BACKGROUND: Ablation of atrial fibrillation (AF) has been one of the most difficult and time-consuming electrophysiological procedures. Due to the rapidly increasing demand for ablation procedures, technical advances would be helpful to reduce complexity and procedure time in AF ablation. Therefore, we investigated the feasibility of a single-catheter technique for pulmonary vein (PV) isolation utilizing a decapolar catheter combined with a duty-cycled, unipolar-bipolar radiofrequency (RF) generator. METHODS: AF mapping and ablation was performed in 21 consecutive patients (mean age 59 +/- 12 years, 9 males) with paroxysmal AF (n = 17) and persistent AF (n = 4). The ablation catheter was forwarded to the LA via single-transseptal puncture. All electrodes were energized in 2 to 5 applications per vein, followed by segmental RF applications, as needed, to achieve electrical isolation. To assess left atrial anatomy for purposes of catheter manipulation, and later evaluate the possibility of asymptomatic PV-stenosis, CT or MR imaging was performed both prior to ablation and at 6-month follow-up. RESULTS: Isolation could be achieved in 85/86 veins (99%). Procedure time for ablation was 81 +/- 13 minutes, and fluoroscopy time was 30 +/- 11 minutes. There were no procedural complications. Success rate at 6 months was 86% (18/21). MR or CT imaging excluded asymptomatic PV-stenosis. CONCLUSION: Mapping and ablation of PVs can be performed in a safe and efficient manner using a single-catheter technique, with short procedure times and minimal learning curve. Thus, this system may be of high interest not only for high volume but all centers performing AF ablation.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5c011247bc5c58c3a8e7167d5c62e5cf https://pubmed.ncbi.nlm.nih.gov/19493155 Zobrazit plný text záznamu Plný text ve formátu PDF Plný text ve formátu HTML
Nepřihlášeným uživatelům se plný text nezobrazuje	K zobrazení výsledku je třeba se přihlásit.