Background

Permanent junctional reciprocating tachycardia (PJRT) is an infrequent form of atrioventricular re-entrant tachycardia. We report the clinical and electrophysiological properties of PJRT and outcomes of radiofrequency catheter ablation (RCA) in a large group of patients.

Methods

We included 62 patients with the diagnosis of PJRT. Radiofrequency catheter ablation was performed in all.

Results

Location of accessory pathway was right posteroseptal in 37 (59,7%) cases, right midseptal in 3 (4,8%), left posterior in 7 (11,3%), left lateral in 5 (8,1%), left posterolateral in 3 (4,8%), left anterolateral in 2 (3,2%), left posteroseptal in 2 (3,2%), middle cardiac vein in 2 (3,2%), and left coronary cusp in 1 (1,6%). Single procedure success rate was 90.3%. None of patients had recurrence during follow-up after repeat ablations. Overall long-term success rate was 98.4%. Left ventricular systolic function recovered in all patients with tachycardia-induced cardiomyopathy (TIC).

Conclusion

Retrograde decremental accessory pathways are mainly located in posteroseptal region. Radiofrequency catheter ablation is a safe and effective approach in patients with PJRT.

中文翻译：

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永久性交界性往复性心动过速患者的射频导管消融及长期随访结果

背景

永久性交界性往复性心动过速 (PJRT) 是一种罕见的房室折返性心动过速。我们在一大群患者中报告了 PJRT 的临床和电生理特性以及射频导管消融 (RCA) 的结果。

方法

我们纳入了 62 名诊断为 PJRT 的患者。全部进行了射频导管消融。

结果

旁路位于右后间隔 37 例（59.7%），右中间隔 3 例（4.8%），左后部 7 例（11.3%），左侧 5 例（8.1%），左后外侧 3 (4,8%)，左前外侧 2 (3,2%)，左后间隔 2 (3,2%)，心中静脉 2 (3,2%)，左冠状动脉尖1 (1.6%)。单次手术成功率为90.3%。在重复消融后的随访期间，没有患者出现复发。总体长期成功率为98.4%。所有心动过速诱发的心肌病 (TIC) 患者的左心室收缩功能均恢复。

结论

逆行递减旁路主要位于后间隔区。射频导管消融是 PJRT 患者安全有效的方法。