Histopathologic background for resistance to conventional catheter ablation of common atrial flutter

被引：16

作者：

Igawa, O

Adachi, M

Hisatome, I

Matsui, Y

机构：

[1] Tottori Univ, Fac Med, Dept Multidisciplinary Internal Med, Div Mol Med & Therapeut, Yonago, Tottori 6838504, Japan

[2] Tottori Univ, Grad Sch Med Sci,Inst Regenerat Med & Biofunct, Div Regenerat Med & Therapeut, Dept Genet Med & Regenerat Therapeut, Yonago, Tottori, Japan

[3] Saiseikai Izuo Hosp, Dept Cardiol, Osaka, Japan

来源：

JOURNAL OF CARDIOVASCULAR ELECTROPHYSIOLOGY | 2004年 / 15卷 / 07期

关键词：

atrialflutter; catheter ablation; histopathology; radiofrequency; cavotricuspid isthmus; large tip catheter;

D O I：

10.1046/j.1540-8167.2004.03447.x

中图分类号：

R5 [内科学];

学科分类号：

1002 ; 100201 ;

摘要：

Resistance to Catheter Ablation. Histopathologic examination of the cavotricuspid isthmus in which a large-tip catheter was necessary to achieve conduction block is presented. No thickened myocardium or prominent trabeculation was observed on the ablation line. A small cardiac vein extending through the isthmus across the ablation scar was detected. The remaining myocardial cells were distributed along the small cardiac vein. It is possible that the luminal blood flow of the small cardiac vein protects the surrounding atrial muscle from effective delivery of radiofrequency energy.

引用

页码：829 / 832

页数：4

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