Radiofrequency catheter ablation of posteroseptal atrioventricular pathways - Location-specific electrographic characteristics of successful ablation sites

被引:0
作者
Soejima, Y
Iesaka, Y
Takahashi, A
Goya, M
Tokunaga, T
Amemiya, H
Fujiwara, H
Nitta, J
Nogami, A
Aonuma, K
Hiroe, M
Marumo, F
Hiraoka, M
机构
[1] TSUCHIURA KYODO GEN HOSP, CTR CARDIOVASC, TSUCHIURA, IBARAKI, JAPAN
[2] TOKYO MED & DENT UNIV, MED RES INST, DEPT CARDIOVASC DIS, TOKYO 113, JAPAN
[3] TOKYO MED & DENT UNIV, MED RES INST, DEPT MED 2, TOKYO 113, JAPAN
来源
JAPANESE CIRCULATION JOURNAL-ENGLISH EDITION | 1997年 / 61卷 / 01期
关键词
radiofrequency catheter ablation; posteroseptal atrioventricular accessory pathway; Wolff-Parkinson-White syndrome; PARKINSON-WHITE SYNDROME; LEFT FREE-WALL; ACCESSORY PATHWAYS; TRANSCATHETER ABLATION; TARGET SITES; CONNECTIONS; IDENTIFICATION; ENERGY; CURE;
D O I
10.1253/jcj.61.46
中图分类号
N09 [自然科学史]; B [哲学、宗教];
学科分类号
01 ; 0101 ; 010108 ; 060207 ; 060305 ; 0712 ;
摘要
The electrographic features of successful sites of radiofrequency catheter ablation were analyzed in 33 cases of posteroseptal accessory pathways and compared with those from 155 cases of free wall accessory pathways. The atrioventricular intervals in the posteroseptal cases were significantly longer than in the free wall cases (posteroseptal vs left and right free wall, 38 vs 33 and 26 msec, respectively; p<0.05), and the incidences of continuous electrograms (42 vs 63 and 79%; p<0.01) and PQS-pattern unipolar electrograms (50 vs 76 and 78%: p<0.05) were significantly lower in the posteroseptal cases. The V-delta intervals in the posteroseptal cases were significantly longer than in the left free wall cases (17 vs 13 msec: p<0.05), but shorter than in the right free wall cases (17 vs 23 msec; p<0.05). No statistically significant difference in the incidence of Kent potentials among the 3 groups was observed. In radiofrequency ablation of posteroseptal pathways, the length of the atrioventricular interval and the incidences of continuous electrograms and PQS-pattern unipolar electrograms may be unsatisfactory even at the appropriate target site, but the V-delta interval and Kent potential are good indicators of suitable target sites.
引用
收藏
页码:46 / 54
页数:9
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