HISTOPATHOLOGICAL STUDY FOLLOWING CATHETER GUIDED RADIOFREQUENCY CURRENT ABLATION OF THE SLOW PATHWAY IN A PATIENT WITH ATRIOVENTRICULAR NODAL REENTRANT TACHYCARDIA

被引:32
作者
GAMACHE, MC
BHARATI, S
LEV, M
LINDSAY, BD
机构
[1] WASHINGTON UNIV,SCH MED,DIV CARDIOVASC,ST LOUIS,MO 63110
[2] CHRIST HOSP,HEART INST CHILDREN,CTR CONGENITAL HEART & CONDUCTION SYST,OAK LAWN,IL
[3] RUSH PRESBYTERIAN ST LUKES MED CTR,RUSH MED COLL,DEPT PATHOL,CHICAGO,IL
来源
PACE-PACING AND CLINICAL ELECTROPHYSIOLOGY | 1994年 / 17卷 / 02期
关键词
HISTOLOGY; RADIOFREQUENCY ENERGY; AV NODE; SLOW PATHWAY;
D O I
10.1111/j.1540-8159.1994.tb01379.x
中图分类号
R5 [内科学];
学科分类号
1002 ; 100201 ;
摘要
The present study examined histological changes induced by catheter guided radiofrequency current in a patient with AV nodal reentrant tachycardia who underwent cardiac transplantation 1 week after ablation of the slow pathway. During the electrophysiology study AV nodal conduction curves were discontinuous and AV nodal reentry was induced. At the conclusion of the procedure there was no evidence of slow pathway function. Histological sections from the explanted heart demonstrated a sharply demarcated atrial lesion (15 x 5 x 4 mm) extending from the septal portion of the tricuspid annulus to the posterior border of the AV node. The lesion did not encompass the compact AV node. These observations support the hypothesis that the slow pathway is comprised of atrial approaches to the AV node and is distinct from the compact AV node.
引用
收藏
页码:247 / 251
页数:5
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