| QT离散度与冠心病心律失常 |
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| 作者单位： | DepartmentofCardiology，AffiliatedHospital，BinzhouMedicalCollege，Binzhou256603 |
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| 摘 要： | 目的：了解冠心病ＱＴ离散度（ＱＴｄ）和心率校正ＱＴ离散度（ＱＴｃｄ）变化与恶性心律失常的关系。方法：选择冠心病５５例心律失常和４５例无心律失常患者，与３０例健康者的ＱＴｄ及ＱＴｃｄ进行对比分析。结果：冠心病心律失常ＱＴｄ（７２±１８ｍｓ）和ＱＴｃｄ（８１±１４ｍｓ）较冠心病无心律失常（５０±１６ｍｓ、５６±１５ｍｓ）及健康者（４３±１４ｍｓ、４９±２０ｍｓ）显著增加，Ｐ＜０．０１。结论：体表心电图ＱＴｄ和ＱＴｃｄ增加可作为区分冠心病高危人群、预测心律失常有价值的临床指标之一。
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| 关 键 词： | QT离散度 冠心病 心律失常 |
QT DISPERSIONANDCARDIACARRHYTHMIASASSOCIATEDWITHCORONARYHEARTDISEASE |
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| Authors: | LiuXiaolin LiLianjin WangLinhai |
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| Abstract: | Objective: ToinvestigatetherelationshipbetweentheChangesofQTdispersion(QTd)andcorrectedQTdispersion(QTcd)andthemalignantcardiacarrhythmias(CA)inpatientswithcoronaryheartdisease(CHD). Methods:TBZTheQTdandQTcdof100patientswithCHDincluding55withCA(CHD+CAgroup)and45withoutCA(CHDCAgroup)andthoseof30normalcontrols(NCgroup)werecomparedandanalysed. Results:WTBZTheQTd(7218ms)andQTcd(8114ms)intheCHD+CAgroupweresignificantlylargerthanthoseinCHDCAgroup(5016ms,5615ms)andNCgroup(4314ms,4920ms),P<001. Conclusion:TheincreaseofQTdandQTcdonsurfaceECGmayactasoneofthevaluableclinicalindexestodistinguishhighriskgroupinpatientswithCHDandtopredicteventsofCA. |
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| Keywords: | QTdispersion coronaryheartdisease cardiacarrhythmias |
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