[Left XXXX encircling pulmonary veins guided by EnSite-NavX and double-Lasso technique for @entity955 ].

@entity1 @entity2293 @entity75 @entity955 @entity2779 @entity4687
OBJECTIVE: To evaluate the efficacy of left @entity75 encircling pulmonary veins (PV) guided by EnSite-NavX and double-Lasso technique for @entity955 ( @entity955 ). METHODS: Twenty-two @entity1 (male 19, mean age of 48.5 years +/- 11.4 years) with symptomatic @entity955 were enrolled. After a geometry of the left atrium was reconstructed by EnSite-NavX system, PV ostia were marked on the map based on venography. Two Lasso catheters were placed within the ipsilateral superior and inferior PVs. Irrigated radiofrequency energy was applied at 0.5-1.0 cm of distance from the PV ostia. @entity75 was done to obtain the disappearance of pulmonary vein potentials. @entity1 were on @entity2779 and @entity4687 for three months after the procedure. RESULTS: The endpoint for ablation was reached in 21 @entity1 and 1 @entity1 was not successful because of @entity2293 . The mean procedure time was 6.6 h +/- 1.3 h and the mean X-ray exposure time was 56.1 min +/- 18.0 min. After a mean 5.3 months +/- 2.7 months of follow-up, 10 @entity1 were free of symptoms. Two @entity1 had no @entity955 recurrence after the second procedure. Three @entity1 had clinical recurrence of @entity955 in the first month. The total success rate in this study was 81% (17/21). Mortality was 0% and the overall complication rate was about 9% (2/22). CONCLUSION: Left atrium circumferential linear ablation surrounding PV ostia guided by EnSite-NavX and double-Lasso technique is effective in @entity955 , but some @entity1 will need more than one procedure in order to achieve a success.
