【摘 要】
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Objective To determine whether the extent of prolongation of the transisthmus interval after ablation predicts complete bidirectional block. Methods Since 1996
【机 构】
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Department of Cardiology
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Objective To determine whether the extent of prolongation of the transisthmus interval after ablation predicts complete bidirectional block. Methods Since 1996 to 2002, 30 consecutive patients underwent ablation procedures for isthmus-dependent atrial flutter. There were 23 males and 7 females [mean age (47.85±9.35) years]. With the use of fluoroscopic view of anatomy, radiofrequency ablation was performed during coronary sinus pacing at a cycle length of 600 ms.Results Bidirectional block was achieved with ablation in 29 (97%) of 30 patients. The transisthmus intervals before ablation and after complete transisthmus block were (73.82±13.01) ms and (140.47±20.48) ms, respectively, in the clockwise direction (P
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