ESTIMATION OF ANTERIOR INFARCT SIZE WITH BODY-SURFACE QRST INTEGRAL MAPS IN THE PRESENCE OF ABNORMAL VENTRICULAR ACTIVATION SEQUENCE IN DOGS

被引：4

作者：

ICHIHARA, Y ^{[1
]}

HIRAI, M ^{[1
]}

HAYASHI, H ^{[1
]}

TOMITA, Y ^{[1
]}

ADACHI, M ^{[1
]}

SUZUKI, A ^{[1
]}

TSUDA, M ^{[1
]}

NAGASAKA, M ^{[1
]}

SAITO, H ^{[1
]}

机构：

[1] NAGOYA UNIV, SCH MED,DEPT INTERNAL MED 1,DIV CARDIOL, 65 TSURUMAI CHO,SHOWA KU, NAGOYA, AICHI 466, JAPAN

来源：

AMERICAN HEART JOURNAL | 1993年 / 125卷 / 02期

关键词：

D O I：

10.1016/0002-8703(93)90003-R

中图分类号：

R5 [内科学];

学科分类号：

1002 ; 100201 ;

摘要：

The possibility of estimating infarct size with body surface QRST integral (I(QRST)) maps was investigated in dogs. I(QRST) maps were constructed from 87-lead body surface ECGs, which were recorded 1 week after the production of anterior myocardial infarction during artificial pacing that simulated normal conduction, left bundle branch block, and Wolff-Parkinson-White syndrome in 11 dogs. Small differences were observed between the I(QRST) Maps of the normal conduction and left bundle branch block models (r = 0.93, root mean square difference = 8.71 mVmsec) and between the normal conduction and Wolff-Parkinson-White models (r = 0.96, root mean square difference = 6.03 mVmsec). Summation of the QRST integral values over the body surface leads (QRST index) inversely correlated with infarct size in all three conductions models: r = -0.91 (p < 0.001) in the normal conduction model; r = -0.81 (p < 0.001) in the left bundle branch block model; and r = -0.86 (p < 0.001) in the Wolff-Parkinson-White model. These results show that I(QRST) maps permit noninvasive estimation of infarct size, even in the presence of abnormal activation sequences.

引用

页码：291 / 300

页数：10