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目的分析经左侧间隔部消融成功的房室结折返性心动过速(AVNRT)。方法广东省人民医院心血管病研究所心血管内科2012年1月至2015年11月收治的经左侧间隔部消融成功的AVNRT8例,回顾性分析其导管射频消融的方法及特点。结果 8例患者中男性3例,女性5例,年龄(53.5±18.9)岁,术前均有反复发作的阵发性室上性心动过速病史,8例患者经右侧间隔部反复消融仍无法达到消融终点,其中5例经右侧间隔部消融后术后仍可诱发心动过速,3例有稳定的跳跃及连续回波现象,后分别经主动脉逆行或经房间隔穿刺行左侧间隔部消融取得成功,左侧消融放电次数(5.8±1.9)次,放电时间(47.9±16.2)s。结论右侧间隔部消融无效的AVNRT,可能属左侧后延伸支参与的AVNRT,可通过左侧间隔部慢径区域消融治疗。
Objective To analyze atrioventricular nodal reentrant tachycardia (AVNRT) that has been successfully ablated by the left lateral septum. Methods A total of 8 cases of AVNRT successfully ablated by the left septum admitted from January 2012 to November 2015 in Department of Cardiology, Cardiovascular Institute of Guangdong Provincial People’s Hospital were retrospectively analyzed. Results There were 3 males and 5 females in the 8 cases, with a mean age of (53.5 ± 18.9) years. All patients had recurrent paroxysmal supraventricular tachycardia before operation. Eight patients were repeatedly ablated through the right septum Ablation end point can not be reached, of which 5 cases after ablation by the right spacer can still be induced after tachycardia, 3 cases of a stable jump and continuous echo phenomenon, respectively, after aortic retrograde or peritoneal puncture line left Ablation of the septum succeeded, with a left ablation frequency of 5.8 ± 1.9 and a discharge time of 47.9 ± 16.2 s. Conclusions The AVNRT, which is invalid in the right part of the abdomen, may belong to the AVNRT which is involved in the left posterior extension and can be ablated by the slow part of the left septal area.