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Titolo:
Intraoperative radiofrequency ablation of chronic atrial fibrillation: A left atrial curative approach by elimination of anatomic "anchor" reentrant circuits
Autore:
Kottkamp, H; Hindricks, G; Hammel, D; Autschbach, R; Mergenthaler, J; Borggrefe, M; Breithardt, G; Mohr, FW; Scheld, HH;
Indirizzi:
Univ Leipzig, Herzzentrum, Dept Cardiol, D-04289 Leipzig, Germany Univ Leipzig Leipzig Germany D-04289 t Cardiol, D-04289 Leipzig, Germany Univ Leipzig, Herzzentrum, Dept Heart Surg, D-04289 Leipzig, Germany Univ Leipzig Leipzig Germany D-04289 eart Surg, D-04289 Leipzig, Germany Univ Munster, Dept Cardiol, D-4400 Munster, Germany Univ Munster MunsterGermany D-4400 ept Cardiol, D-4400 Munster, Germany Univ Munster, Dept Angiol, D-4400 Munster, Germany Univ Munster Munster Germany D-4400 Dept Angiol, D-4400 Munster, Germany Univ Munster, Dept Thorac Heart & Vessel Surg, D-4400 Munster, Germany Univ Munster Munster Germany D-4400 Vessel Surg, D-4400 Munster, Germany
Titolo Testata:
JOURNAL OF CARDIOVASCULAR ELECTROPHYSIOLOGY
fascicolo: 6, volume: 10, anno: 1999,
pagine: 772 - 780
SICI:
1045-3873(199906)10:6<772:IRAOCA>2.0.ZU;2-U
Fonte:
ISI
Lingua:
ENG
Soggetto:
ACCESSORY ATRIOVENTRICULAR PATHWAYS; CONGENITAL HEART-DISEASE; INFERIOR VENA-CAVA; CATHETER ABLATION; TRICUSPID ANNULUS; MAZE PROCEDURE; FLUTTER; TACHYCARDIA; ISTHMUS; CONDUCTION;
Keywords:
atrial fibrillation; catheter ablation; antiarrhythmic surgery; electrophysiology; arrhythmias;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Clinical Medicine
Life Sciences
Citazioni:
31
Recensione:
Indirizzi per estratti:
Indirizzo: Kottkamp, H Univmanypzig, Herzzentrum, Dept Cardiol, Russenstr 19, D-04289Leipzig, Ger Univ Leipzig Russenstr 19 Leipzig Germany D-04289 eipzig, Ger
Citazione:
H. Kottkamp et al., "Intraoperative radiofrequency ablation of chronic atrial fibrillation: A left atrial curative approach by elimination of anatomic "anchor" reentrant circuits", J CARD ELEC, 10(6), 1999, pp. 772-780

Abstract

Intraoperative Ablation of Atrial Fibrillation. Introduction: The percutaneous approach to radiofrequency (RF) catheter ablation for curative treatment of atrial fibrillation (AF) is an investigational technique, and the optimal composition of lesion lines is unknown. We tested an intraoperative RFablation concept with elimination of left atrial anatomic ''anchor" reentrant circuits. Methods and Results: In 12 patients with an indication for valve surgery and chronic AF, a right atrial-transseptal approach was chosen for access tothe left atrium, AF had been present for 4.3 +/- 3.9 years; the left atriameasured 56 +/- 7 mm, Under direct vision, contiguous lesion lines were placed endocardially with temperature-guided RF energy applications for treatment of AF with a specially designed probe. The lesion lines were placed between the mitral annulus and the left lower pulmonary, vein, further to theleft upper pulmonary vein, from there to the right upper pulmonary vein, and finally to the right lower pulmonary rein. The antiarrhythmic ablation procedure lasted 19 +/- 4 minutes. One patient died postoperatively of low cardiac output. During follow-up of 11 +/- 6 months, chronic AF was ablated successfully in 9 of 11 patients (82%). Sh patients mere in stable sinus rhythm or intermittent pacemaker rhythm, and three patients were in sinus rhythm with intermittent atypical atrial flutter,Conclusions: Intraoperative RF energy application for induction of contiguous lesion lines is feasible, Elimination of anatomically defined "anchor"'reentrant circuits within the left atrium prevented chronic AF in > 80% ofthe patients treated. Intraoperative validation of lesion line concepts for curative treatment of AF mag be transferred to percutaneous ablation techniques.

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Documento generato il 12/07/20 alle ore 06:03:03