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目的:报告经主动脉无冠状窦内射频消融6例局灶性房性心动过速(房速)的消融结果。方法:6例患者中男女各3例。阵发性房速病史(6±3)年。常规心电图、心内电生理,术中心房和心室刺激诱发房速,分别在右心房、左心房和主动脉无冠状窦内标测最早心房激动,并进行射频消融。结果:心房刺激能反复诱发和终止6例患者的房速。心房内的前间隔部位标测相对提前的心房激动,但多次消融未成功。经主动脉无冠状窦内消融成功。平均随访3～17个月,无1例房速复发。结论:经主动脉无冠状窦消融前间隔房速是安全,有效的。
OBJECTIVE: To report the ablation results of 6 patients with focal atrial tachycardia (atrial tachycardia) by radiofrequency ablation of the aorta without coronary sinus. Methods: There were 3 males and 6 females in 6 patients. Paroxysmal atrial tachycardia history (6 ± 3) years. Conventional electrocardiogram, intracardiac electrophysiology, intraoperative atrial and ventricular stimulation induced atrial tachycardia, respectively, in the right atrium, left atrium and aorta without coronary sinus internal standard measurement of the earliest atrial activation and radiofrequency ablation. Results: Atrial stimulation could induce and terminate the atrial tachycardia in 6 patients repeatedly. Atrial septal site mapping relatively early atrial activation, but not repeated ablation. Coronary sinus by aortic ablation success. The average follow-up of 3 to 17 months, no case of a recurrence of atrial tachycardia. CONCLUSION: Atrial septal aortic velocity before ablation is safe and effective.