普通球襄导管组心律失常的总发生率为55.4%，而灌注式球囊导管组心律失常的发生率仅为34.4%，且心律失常的严重程度远较普通球囊导管组为轻。

The incidence of RA in common balloon catheter treated group is 55. 4%, while that in perfusion balloon catheter treated group is 34. 4% and the extent of RA is less severe.

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普通球襄导管组心律失常的总发生率为55.4%，而灌注式球囊导管组心律失常的发生率仅为34.4%，且心律失常的严重程度远较普通球囊导管组为轻。

The incidence of RA in common balloon catheter treated group is 55. 4%, while that in perfusion balloon catheter treated group is 34. 4% and the extent of RA is less severe.

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