快速心室率心房纤颤的房室传导改良  

Radiofrequency modification of atrioventricular conduction in patients with atrial fibrillation and rapid ventricular rate

作　　者：刘小青[1] 刘商 魏经汉[1] 魏太星 

机构地区：[1]解放军第155医院心内科,河南医科大学第一附属医院心内科

出　　处：《临床心血管病杂志》1996年第1期22-24,共3页Journal of Clinical Cardiology

摘　　要：对１３例药物难以控制的快室率心房纤颤（房颤）病人进行经射频消融房室传导改良，射频消融靶点选择右房内房间隔之后、中或前部。射频能量为２０～３０Ｗ，平均发放射频８±３次。结果：９例房室改良成功，３例失败，１例于术后３天发生Ⅲ°房室传导阻滞。９例术后２天及２个月休息时心率、活动时心率、最高心率及最低心率较术前有明显下降（Ｐ＜０．０５）．１例于术后１１个月复发，其机理与部分或全部损伤后结间束或部分损伤房室结有关。认为射频消融房室传导改良为治疗药物难以控制的快室率房颤的一种相对安全有效的方法。Thirteen patients with atrial filbrillation and rapid ventricular rate and refractory to drug tberapy were studied.A 20～30W radiofrequency-energy was delivered for an average of 8±3 times.The target sites were selected to the posterior or mid Septum or anterior septum in right atrium.Successful controlling the ventricular rate was achieved in 9 of 13 patients. 3 patients failed.1patients occurred persistent third-degree atrioventricular block after 3 days.The 9 patients who had successful modification of atrioventricular conduction had persistent reduction in resting or walking or maximal or minimal ventricular rate at 2nd day and at 2nd month.Recurrence of rapid ventricular rate at 11 month after procedure was observdin one patient.The results indicated that the radiofrequency modification of atrioventricular conduction without creating pathologic atroventricular block was feasible in majority of patients with atrial fibrillation and a rapid ventricular rate and refractory to drug therapy.

关 键 词：射频消融 房室传导 心房纤颤 心室率 

分 类 号：R541.750.5[医药卫生—心血管疾病]