Clinical efficacy of endoscopic epicardial microwave ablation for isolated atrial fibrillation.
- Author:
Biao YUAN
1
;
Sheng ZHAO
;
Zhong ZHAO
;
Chen-jun HUANG
;
Hong-jun JIANG
;
Qi-jun SHAN
;
Ke-jiang CAO
Author Information
- Publication Type:Journal Article
- MeSH: Adult; Atrial Fibrillation; surgery; Catheter Ablation; methods; Endoscopy; Female; Follow-Up Studies; Humans; Male; Microwaves; therapeutic use; Middle Aged; Treatment Outcome
- From: Chinese Journal of Cardiology 2005;33(11):984-986
- CountryChina
- Language:Chinese
-
Abstract:
OBJECTIVETo assess the efficacy of endoscopic epicardial microwave ablation, a new completely endoscopic technique, for isolated atrial fibrillation (AF).
METHODSFrom July to October of 2004, 5 patients with isolated permanent AF underwent this procedure. We performed epicardial microwave ablation using FLEX10 probe under the guide of VasoView 5 endoscope. The probe was placed around left and right pulmonary vein orifices, the microwave application was set 65 W/90 s, and a continuous ablation line was obtained encircling the pulmonary veins. Echocardiography and electrocardiography were carried out in all patients before and after operation.
RESULTSFive patients received electrical conversion after ablation. Average ablation time was 35.0 min and average procedure time was 2.5 h without any procedure-related complications. At the 3-month, 6-month and 12-month follow-up, 4 patients (80%) were in sinus rhythm, associated with a reduced left atrial diameter and an improved cardiac function.
CONCLUSIONEndoscopic epicardial microwave ablation for isolated atrial fibrillation appears to be safe and effective.
