摘要
采用下位法和/或后位法对10例房室结双径路(DAVNP)伴阵发性室上速的病人的慢径路施行导管射频消融术。结果10例病人均消融成功,在10次成功的放电过程中均发生了交界区心律现象(100％),而在其余不成功的放电次数中出现此现象者仅占7.9％。此现象的特点为:(1)频率等于或高于窦性心率;(2)间断性或持续性出现;(3)不伴有心室率减慢和/或PR间期延长;(4)大多于放电开始后5～10s出现,在放电结束前或随着放电停止自行恢复窦律;(5)相同或相邻部位的不同次放电可重复出现且特点相同。作者认为在DAVNP慢径路的导管射频消融过程中发生交界区心律现象是导管电极定位正确的标志,如不伴有心室率减慢和/或PR间期延长,则提示消融有效。
The inferior and/or posterior approach of radiofreguency ablation (RF) were used to ablate the slow pathway of 10 patients with dual atrioventricular nodal pathways complicated with reentant tachvcardia. Ten patients were all ablated successfully. The total incidence of junction rhytnm (JR) was 15.2%(19/124). The JR developed during all 10 times of successful ablation (sensetivity 52.6%). But in 105 times of ablation withont JR there were no successful ablations(specificity 100%).In altogether 114 times of unsuccessful ablations the incidence of JR was only 7.9%(9/114). The characteristics of JR included: (1) the rate was equal or a little more than the sinus rhythm, (2) occured intermittently or persistently, (3) the ventricular rate did not decrease and the PR interval did not prolong, (4) always induced by RF and disappeared before or iust with the stop of ablation, (5) could be duplicted by the the other times of ablation on the same or quite near place of the previous ablation.
出处
《空军总医院学报》
1993年第4期191-193,共3页
Journal of General Hospital of Air Force,PLA
关键词
房室结
心脏导管插入术
阵发性心动过速
Atrioventricular node Tachycardia, paroxysmal Heat catheterization
