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食道心房超速负荷试验中QT 间期离散度诊断冠心病的价值(PDF)

《心脏杂志》[ISSN:1009-7236/CN:61-1268/R]

期数:
2002年第3期
页码:
226-228
栏目:
临床研究
出版日期:
2002-05-01

文章信息/Info

Title:
The diagnosis value of QTd in transesophageal atrial superratest imulation stress test for coronary heart disease
作者:
王明空;  李春生;  岳全廷;  魏运亮
解放军152 医院心内科, 河南平 顶山 467000
Author(s):
WANG Ming-kong ; LI Chun-sheng ;  YUE Quan-ting ; WEI Yun-liang
Hospital 152, PLA , Pingdingshan, Henan 467000, China
关键词:
食道心房超速负荷试验;  冠心病;  QT 间期离散度;  心电描记术
Keywords:
transesophageal atrial superrate stimulation stress test;  coronary heart disease; QT interval dispersion;  electrocrdiography
分类号:
R541.4; R540.41　
DOI:
-
文献标识码:
A
摘要:
目的 评价食道心房超速负荷试验的QT 间期离散度(QTd) 诊断冠心病的价值。方法 对32 例冠心病患者(冠心病组) 及34 例正常者(对照组) 进行食道心房超速负荷试验, 记录试验前后12 导联同步心电图, 测量其ST 段、校正QT 间期(Q Tc) 及QTd。根据ROC 曲线求出QTc 及QTd 的截断点, 以冠脉造影为诊断冠心病的标准诊断方法,利用四格表法, 分别计算各观测指标的特异度及敏感度。并与“并联试验”相互比较。结果 ST 段下移、QTc,QTd 诊断冠心病的特异度分别为100% , 68% , 94%; 敏感度分别为53% , 78%和84%。ST 段下移和Q Td 并联试验时敏感度可达94%。结论 食道心房超速负荷试验时, 如以传统的诊断指标ST 段下移, 结合QTd, 可明显提高其诊断的敏感度, 可作一项重要参考指标。
Abstract:
AIM To evaluate the value of QTc and QTd combined with ECG in transesophageal atrial superrate stimulation stress test in the diagnosis of coronary heart disease.METHODS 32 patients with coronary heart disease and 34 normal controls were undergone transesophageal atrial superrate stimulation stress test. ST segment,QTc and QTd were measured in 12 lead synchronizing ECG recorded before and during the test. Using statistic crosstab method,the specificity and sensitivity of each criterion were calculated according to the cut-off point on ROC curve of QTc and QTd combined with the diagnostic criteria of coronary artery angiography. This was also compared with the method of“combining diagnostic criteria”.RESULTS It showed that using ST segment depression, QTc and QTd as positive diagnostic criteria of coronary heart disease in transesophageal atrial superrate stimulation stress test, the specificity of above criteria was 100%,68% and 94%,respectively,and the sensitivity,53%,78% and 84%,respectively. By combining the diagnostic criteria of ST segment depression with that of QTd,the sensitivity was 94%.CONCLUSION It suggested that the traditional criteria of ST segment depression combined with QTd during transesophageal atrial superrate stimulation stress test might increase the sensitivity of the diagnosis of coronary heart disease,it might be used as an important index in the diagnosis of coronary heart disease.

参考文献/References

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备注/Memo

备注/Memo:
收稿日期：2001-05-21.
更新日期/Last Update: 2005-05-01