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３２例左游离壁旁道采用单导管法射频消融成功．其中Ａ型预激综合征２９例，隐匿性左侧旁道３例，均为单旁道．２５条旁道位于左侧壁，７条位于左后壁．本组单导管法平均放电次数为３．５±３．２次，操作总时间１．１±０．６ｈ，Ｘ光曝光时间１３±５．５ｍｉｎ，都短于我们的多导管法．术后随访１～１３月，仅１例于术后４日δ波复现，再次用此法成功，余均无复发．单导管法仅适用于Ａ型预激综合征，且术者应有多导管法的丰富经验．但其大头导管的“窦－室－窦”标测法却普遍适用于任何旁道的消融，熟悉此方法，将会使任何旁道的消融缩短时间，提高成功率．
32 cases of left bypass wall bypass radiofrequency catheter using single catheter method successfully. Type A pre-excitation syndrome in 29 cases, 3 cases of occult left side of the bypass, are single bypass. The 25 bypasses are on the left side wall and 7 are on the left rear wall. The average number of single catheter discharge 3.5 ± 3.2 times, the total operation time of 1.1 ± 0.6h, X-ray exposure time of 13 ± 5.5min, are shorter than our multi-catheter method. Follow-up 1 to 13 months after surgery, only 1 case of δ wave recurrence on the 4th postoperative, again using this method was successful, the remaining no recurrence. Single-catheter method is only applicable to type A WPW syndrome, and the surgeon should have extensive experience of multi-catheter method. But its bulk catheter “sinus - ventricular - sinus” mapping method is generally applicable to any bypass ablation, familiar with this method, will shorten the time of any bypass ablation to improve the success rate.