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前间隔的房室(AV)旁道并不常见,主位于心脏右侧,发生率为10%,其行径紧邻特殊传导系统解剖部位,因而试图用手术或电消除该旁道时,就可能并发AV结-His束传导阻滞。作者研究所从1987年5月至1991年7月采用导管射频电流法消融旁道159例,其中12例为前间隔旁道,平均年龄37±13岁),10例为WPW综合征,2例为隐匿性旁道,伴频繁和丧失能力的心悸长达2～23年,作为本文研究对象。经静脉将5根多极导管送至心脏有关部位,其中一根导管经右颈内静脉送抵三尖瓣心房侧,供标测和消融旁道之用。大多数病人应用500KHZ射频电流,平均电能577±207焦耳。结果:12例进行14次消融术,成功地消除了所有病人旁道的传导,均未损伤AV结-His束的传导。
Atrial septal (AV) bypass is not uncommon, the main is located in the right side of the heart, the incidence of 10%, its behavior is close to the special conduction system anatomy, and thus try to surgically remove the bypass surgery, it may be complicated AV junction-His bundle conduction block. The author Institute from May 1987 to July 1991 catheter ablation of 159 cases of bypass radiofrequency, including 12 cases of anterior septal bypass, mean age 37 ± 13 years), 10 cases of WPW syndrome, 2 cases For the concealed bypass, with frequent and incapacitating heart palpitations up to 2 to 23 years, as the object of this study. The vein will be 5 multi-pole catheter to the relevant parts of the heart, one of the catheter via the right internal jugular vein sent to the atrial side of the tricuspid valve for the measurement and ablation of the bypass use. Most patients use 500KHZ RF current, the average power of 577 ± 207 Joules. RESULTS: Twelve of the 14 patients underwent ablation, successfully eliminating the conduction of all the patients’ pathways and not impairing the conduction of AV junction-His bundle.