新型导电球囊电极导管的临床应用

A clinical study on novel electric conduction balloon electrode catheter

目的评价导电球囊电极导管经食管心室起搏的可行性及临床应用。方法选择60例需做经食管心脏起搏电生理检查的病人,其中男性34例,女性26例;年龄12￣70岁,平均年龄48.0岁。有10例病人既往曾发作室性心动过速。分别应用导电球囊电极导管和普通电极导管进行电生理检查,对两者的结果进行比较。结果应用导电球囊电极导管检查成功起搏57例,平均起搏电压(23.4±3.7)V;应用普通电极导管检查成功起搏35例,平均起搏电压(36.7±2.9)V。比较两种导管的起搏成功率差异有显著统计学意义(χ2=22.54,P<0.01);比较两种导管的平均起搏电压差异有显著统计学意义(t=18.16,P<0.01);两种导管对室性心动过速的诱发成功率比较差异无统计学意义(P>0.05)。结论应用导电球囊电极导管进行经食管心室起搏,所需起搏阈值较普通电极导管低,且起搏成功率高;用导电球囊电极导管可以对室性心动过速进行经食管电生理检查。

Objective To study the effect of transesophageal ventricular pacing（TEVP） with a novel electric conduction balloon electrode catheter. Methods Sixty patients were performed transesophageal ventricular pacing with the new electric conduction balloon electrode catheter. The results were compared with that of performing with ordinary electrode catheter. Results In the electric conduction balloon electrode catheter group,57 cases were performed successfully. The average voltage was （23.4 ± 3.7） V. Thirty-five cases were performed successfully with ordinary electrode catheter,the average voltage was （36.7 ± 2.9） V. The difference of success rate between two methods was significant （χ^2 = 22.54,P 〈 0.01 ）. The difference of average voltage between two groups was significant （t = 18.16,P 〈 0.01 ）. There was no significant difference in the occurrence of ventricular tachycardia between two catheter groups （P 〉 0.05 ）. Conclusion With the new electric conduction balloon electrode catheter,the success rate of TEVP is elevated and the average voltage is decreased. The electrophysiological examination can be performed by the electric conduction balloon electrode catheter in patients with ventricular tachycardia.