递进式消融法治疗持续性心房颤动的初步体会

Objective To evaluate the effect of catheter ablation on persistent atrial fibrillation (AF) using step-wise approach. Methods Thirty-four patients [mean age (54.8 ± 11.4) years] with persistent AF [mean (36.5 ± 9.8) months] underwent catheter ablation were enrolled. Ablation was performed in following sequence. Circumferential ablation of pulmonary veins to achieve isolation, linear ablation of left atrium roof and mitral isthmus, ablation at sites possessing complex fractionated atrial electrograms. Using activation Carto mapping system, if AF converted to atrial flutter (AFL) or atrial tachycardia (AT), then catheter ablation was applied to terminate tachycardia. Results The step-wise ablation approach was successful in rhythm changes (AF converted to AFL/AT) in 88.2% of patients, 61.8% of patients conversion to sinus rhythm directly via ablation. At 12.6 ±6.2 months of follow-up, 82.4% of patients were maintained in sinus rhythm (42.9% of those patients taking oral amiedarone). Conclusion Catheter ablation using step-wise approach is effective in persistent AF treatment.     

递进式消融法治疗持续性心房颤动的初步体会

Objective To evaluate the effect of catheter ablation on persistent atrial fibrillation (AF) using step-wise approach. Methods Thirty-four patients [mean age (54.8 ± 11.4) years] with persistent AF [mean (36.5 ± 9.8) months] underwent catheter ablation were enrolled. Ablation was performed in following sequence. Circumferential ablation of pulmonary veins to achieve isolation, linear ablation of left atrium roof and mitral isthmus, ablation at sites possessing complex fractionated atrial electrograms. Using activation Carto mapping system, if AF converted to atrial flutter (AFL) or atrial tachycardia (AT), then catheter ablation was applied to terminate tachycardia. Results The step-wise ablation approach was successful in rhythm changes (AF converted to AFL/AT) in 88.2% of patients, 61.8% of patients conversion to sinus rhythm directly via ablation. At 12.6 ±6.2 months of follow-up, 82.4% of patients were maintained in sinus rhythm (42.9% of those patients taking oral amiedarone). Conclusion Catheter ablation using step-wise approach is effective in persistent AF treatment.     

递进式消融法治疗持续性心房颤动的初步体会

Objective To evaluate the effect of catheter ablation on persistent atrial fibrillation (AF) using step-wise approach. Methods Thirty-four patients [mean age (54.8 ± 11.4) years] with persistent AF [mean (36.5 ± 9.8) months] underwent catheter ablation were enrolled. Ablation was performed in following sequence. Circumferential ablation of pulmonary veins to achieve isolation, linear ablation of left atrium roof and mitral isthmus, ablation at sites possessing complex fractionated atrial electrograms. Using activation Carto mapping system, if AF converted to atrial flutter (AFL) or atrial tachycardia (AT), then catheter ablation was applied to terminate tachycardia. Results The step-wise ablation approach was successful in rhythm changes (AF converted to AFL/AT) in 88.2% of patients, 61.8% of patients conversion to sinus rhythm directly via ablation. At 12.6 ±6.2 months of follow-up, 82.4% of patients were maintained in sinus rhythm (42.9% of those patients taking oral amiedarone). Conclusion Catheter ablation using step-wise approach is effective in persistent AF treatment.     

递进式消融法治疗持续性心房颤动的初步体会

Objective To evaluate the effect of catheter ablation on persistent atrial fibrillation (AF) using step-wise approach. Methods Thirty-four patients [mean age (54.8 ± 11.4) years] with persistent AF [mean (36.5 ± 9.8) months] underwent catheter ablation were enrolled. Ablation was performed in following sequence. Circumferential ablation of pulmonary veins to achieve isolation, linear ablation of left atrium roof and mitral isthmus, ablation at sites possessing complex fractionated atrial electrograms. Using activation Carto mapping system, if AF converted to atrial flutter (AFL) or atrial tachycardia (AT), then catheter ablation was applied to terminate tachycardia. Results The step-wise ablation approach was successful in rhythm changes (AF converted to AFL/AT) in 88.2% of patients, 61.8% of patients conversion to sinus rhythm directly via ablation. At 12.6 ±6.2 months of follow-up, 82.4% of patients were maintained in sinus rhythm (42.9% of those patients taking oral amiedarone). Conclusion Catheter ablation using step-wise approach is effective in persistent AF treatment.     

递进式消融法治疗持续性心房颤动的初步体会

Objective To evaluate the effect of catheter ablation on persistent atrial fibrillation (AF) using step-wise approach. Methods Thirty-four patients [mean age (54.8 ± 11.4) years] with persistent AF [mean (36.5 ± 9.8) months] underwent catheter ablation were enrolled. Ablation was performed in following sequence. Circumferential ablation of pulmonary veins to achieve isolation, linear ablation of left atrium roof and mitral isthmus, ablation at sites possessing complex fractionated atrial electrograms. Using activation Carto mapping system, if AF converted to atrial flutter (AFL) or atrial tachycardia (AT), then catheter ablation was applied to terminate tachycardia. Results The step-wise ablation approach was successful in rhythm changes (AF converted to AFL/AT) in 88.2% of patients, 61.8% of patients conversion to sinus rhythm directly via ablation. At 12.6 ±6.2 months of follow-up, 82.4% of patients were maintained in sinus rhythm (42.9% of those patients taking oral amiedarone). Conclusion Catheter ablation using step-wise approach is effective in persistent AF treatment.     

递进式消融法治疗持续性心房颤动的初步体会

Objective To evaluate the effect of catheter ablation on persistent atrial fibrillation (AF) using step-wise approach. Methods Thirty-four patients [mean age (54.8 ± 11.4) years] with persistent AF [mean (36.5 ± 9.8) months] underwent catheter ablation were enrolled. Ablation was performed in following sequence. Circumferential ablation of pulmonary veins to achieve isolation, linear ablation of left atrium roof and mitral isthmus, ablation at sites possessing complex fractionated atrial electrograms. Using activation Carto mapping system, if AF converted to atrial flutter (AFL) or atrial tachycardia (AT), then catheter ablation was applied to terminate tachycardia. Results The step-wise ablation approach was successful in rhythm changes (AF converted to AFL/AT) in 88.2% of patients, 61.8% of patients conversion to sinus rhythm directly via ablation. At 12.6 ±6.2 months of follow-up, 82.4% of patients were maintained in sinus rhythm (42.9% of those patients taking oral amiedarone). Conclusion Catheter ablation using step-wise approach is effective in persistent AF treatment.     

递进式消融法治疗持续性心房颤动的初步体会

Objective To evaluate the effect of catheter ablation on persistent atrial fibrillation (AF) using step-wise approach. Methods Thirty-four patients [mean age (54.8 ± 11.4) years] with persistent AF [mean (36.5 ± 9.8) months] underwent catheter ablation were enrolled. Ablation was performed in following sequence. Circumferential ablation of pulmonary veins to achieve isolation, linear ablation of left atrium roof and mitral isthmus, ablation at sites possessing complex fractionated atrial electrograms. Using activation Carto mapping system, if AF converted to atrial flutter (AFL) or atrial tachycardia (AT), then catheter ablation was applied to terminate tachycardia. Results The step-wise ablation approach was successful in rhythm changes (AF converted to AFL/AT) in 88.2% of patients, 61.8% of patients conversion to sinus rhythm directly via ablation. At 12.6 ±6.2 months of follow-up, 82.4% of patients were maintained in sinus rhythm (42.9% of those patients taking oral amiedarone). Conclusion Catheter ablation using step-wise approach is effective in persistent AF treatment.     

递进式消融法治疗持续性心房颤动的初步体会

Objective To evaluate the effect of catheter ablation on persistent atrial fibrillation (AF) using step-wise approach. Methods Thirty-four patients [mean age (54.8 ± 11.4) years] with persistent AF [mean (36.5 ± 9.8) months] underwent catheter ablation were enrolled. Ablation was performed in following sequence. Circumferential ablation of pulmonary veins to achieve isolation, linear ablation of left atrium roof and mitral isthmus, ablation at sites possessing complex fractionated atrial electrograms. Using activation Carto mapping system, if AF converted to atrial flutter (AFL) or atrial tachycardia (AT), then catheter ablation was applied to terminate tachycardia. Results The step-wise ablation approach was successful in rhythm changes (AF converted to AFL/AT) in 88.2% of patients, 61.8% of patients conversion to sinus rhythm directly via ablation. At 12.6 ±6.2 months of follow-up, 82.4% of patients were maintained in sinus rhythm (42.9% of those patients taking oral amiedarone). Conclusion Catheter ablation using step-wise approach is effective in persistent AF treatment.     

递进式消融法治疗持续性心房颤动的初步体会

Objective To evaluate the effect of catheter ablation on persistent atrial fibrillation (AF) using step-wise approach. Methods Thirty-four patients [mean age (54.8 ± 11.4) years] with persistent AF [mean (36.5 ± 9.8) months] underwent catheter ablation were enrolled. Ablation was performed in following sequence. Circumferential ablation of pulmonary veins to achieve isolation, linear ablation of left atrium roof and mitral isthmus, ablation at sites possessing complex fractionated atrial electrograms. Using activation Carto mapping system, if AF converted to atrial flutter (AFL) or atrial tachycardia (AT), then catheter ablation was applied to terminate tachycardia. Results The step-wise ablation approach was successful in rhythm changes (AF converted to AFL/AT) in 88.2% of patients, 61.8% of patients conversion to sinus rhythm directly via ablation. At 12.6 ±6.2 months of follow-up, 82.4% of patients were maintained in sinus rhythm (42.9% of those patients taking oral amiedarone). Conclusion Catheter ablation using step-wise approach is effective in persistent AF treatment.     

单纯碎裂电位指导心房颤动消融的初步临床观察

Objective To evaluate the feasibility of mdiofrequency catheter ablation of atrial fibrilla-tion (AF) guided by complex fractionated atrial electrograms (CFAEs). Methods Twenty-two patients with drug refractory and symptomatic AF(16 paroxysmal, 6 persisten) were enrolled. Using Carto, the left atrial or biatrial replica was created during spontaneous or induced AF, and areas associated with CFAEs were identi-fied. Radiofrequency ablation at the site with CFAEs was performed and the end points were to eliminate CFAEs or convert to sinus rhythm. Results Thirteen patients(59%)were converted to sinus rhythm, (7 cases conver-ted directly to sinus rhythm, and 6 via the intermediate atrial tachycardia(AT) or atrial flutter (AFL). The re-maining nine patients required cardioversion with D. C. shock or drug. Repeat ablation was performed in 6 pa-tients (5 AT/AFL, 1 paroxysmal AF). During(10.9 ±4.8) months follow-up, 16 patients (73%) were free of arrhythmia and symptoms. CFAEs were most commonly found along the left interatrial septum, pulmonary veins, left atrial roof. CFAEs ablation prolonged AFCL[(157 ± 18) ms vs (211 ± 32) ms, P < 0.05]. Only one patient had pericardial tamponade that required pericardiocentesis. Conclusion Radiofrequeney catheter abla-tion of atrial fibrillation (AF) guided by CFAEs is safe and effective.