摘要
目的 :探讨呈非跳跃性房室结功能曲线 (AVNFC)的房室结折返性心动过速 (AVNRT)射频消融成功的电生理特点。方法 :将 75例AVNRT患者分为 3组 :A组 16例 ,心房递增起搏和A1A2 程序刺激均呈非跳跃性AVNFC ;B组 10例 ,仅心房递增起搏呈跳跃性AVNFC ;C组 4 9例 ,心房递增起搏和A1A2 程序刺激均呈跳跃性AVNFC。比较 3组患者射频消融前后组内及组间的电生理参数。结果 :消融后 3组患者心房递增起搏时最大AH间期 (A1H1max)均比消融前显著缩短 (P <0 .0 5 )。A组消融前、后A1H1max的缩短程度均小于B组和C组 (P <0 .0 5 )。A组非典型AVNRT的诱发率明显高于B组和C组。结论 :对于心房递增起搏和A1A2 程序刺激均呈非跳跃性AVNFC的AVNRT患者 ,消融后A1H1max的显著缩短可作为消融成功的指标之一。AVNFC呈非跳跃性的房室结双径路患者易诱发非典型AVNRT。
Objective:To suggest the electrophysiological characterization in atrioventricular nodal reentrant tachycardia (AVNRT) with non-jumping atrioventricular nodal functional curves(AVNFC). Method: Seventy-five patients with AVNRT were divided into 3 groups.Group A(n=16):patients with no-jumping AVNFC during atrial incremental pacing and A 1A 2 extrastimu1ations.Group B(n=10):patients with jumping AVNFC during atrial incremental pacing.Group C(n=49):patients with jumping AVNFC during atrial incremental pacing and A 1A 2 extrastimu1ations. Electrophysiological parameters were compared between the groups before and after ablation. Result: The A 1H 1max were shortened obviously in the three groups after ablation (P< 0.05) .In Group A, the A 1H 1max before ablation and extent of shortening in A 1H 1max after ablation were shorter than those in Group B and Group C(P< 0.05). The inducing rate of untypical AVNRT in Group A was higher than those in Group B and Group C. Conclusion:The shortening of A 1H 1max can be determined as an indicator for the endpoint of radiofrequency ablation in AVNRT patients with non-jumping AVNFC during atrial incremental pacing and A 1A 2 extrastimu1ations.The untypical AVNRT correlate with no-jumping AVNFC.
出处
《临床心血管病杂志》
CAS
CSCD
北大核心
2004年第4期203-204,共2页
Journal of Clinical Cardiology
关键词
心动过速
房室结折返性
射频消融
电生理学研究
心脏
Tachycardia, atrioventricular nodal reentry
Radiofrequent ablation
Electrophysiologic study, cardiac
