Search Results

OBJECTIVETo investigate the effectiveness and advantages of the Carto merge technique in guiding radiofrequency catheter ablation (RFCA) of permanent atrial fibrillation (AF).

METHODSA total of 15 patients with permanent AF underwent RFCA under guidance of the Carto merge technique. The virtual electroanatomical map of the left atrium (LA) and pulmonary veins (PVs) were reconstructed with Carto system during the procedure. Then the electroanatomical map was integrated with 3-D images of cardiac magnetic resonance angiography to form Carto merge map. Circumferential pulmonary vein ablation was performed first until complete PVs electric isolation confirmed by lasso catheter. If AF was not terminated, lesion lines on roof of LA, mitral isthmus, and tricuspid isthmus were produced. Finally direct current (DC) cardioversion were given if sinus rhythm did not return.

RESULTSAF were terminated spontaneously during RFCA in 2 patients, and by DC cardioversion in the remaining 13 patients. Persistent AF recurred on 24 hours, first week, and 5th week, respectively in three patients. The remaining 12 patients were all free of AF during follow-up (1-10 months). The success rate was 80% in the study.

CONCLUSIONSCarto merge technique can effectively guide RFCA of permanent AF. When combined with single Lasso mapping, it can simplify the mapping and enhance the success rate of RFCA of permanent AF.

Atrial Fibrillation ; surgery ; Catheter Ablation ; methods ; Humans

1.Update on the combined atrial fibrillation ablation and left atrial appendage occlusion procedure.

2.Update on the combined atrial fibrillation ablation and left atrial appendage occlusion procedure.

3.Effects of over-drive pacing on the suppression of recurring the atrial fibrillation after open heart surgery.

4.Progress of minimally invasive radiofrequency ablation for atrial fibrillation treatment.

5.More in-depth investigation for the catheter ablation treatment of atrial fibrillation is needed.

6.Evaluation on stepwise ablation approach for long-standing persistent atrial fibrillation.

7.Radiofrequency catheter ablation of permanent atrial fibrillation under guidance of Carto merge technique.

8.Reinforce the study of treatment of atrial fibrillation by catheter ablation.

9.Catheter ablation technologies for persistent atrial fibrillation: controversies and evaluation.

10.Catheter ablation technologies for persistent atrial fibrillation: controversies and evaluation.

Display Mode

Output Records

File Type