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- W3029420021 abstract "目的 观察平板运动心脏负荷试验诱发患者心电图ST段缺血型改变时QT离散度(QTd)和校正QT离散度(QTcd).方法 选掸临床疑诊为冠心患者进行平板运动负荷心电图试验,诱发心电图ST段呈缺血型下移者35例(缺血组),测量运动前、运动后缺血型ST段下移达最大值时及运动后ST段恢复正常时QTd及QTcd,与平板运动负荷心电图ST段无缺血型改变者35例(正常组)进行对比研究.结果 缺血组在运动后ST段下移达最大值时QTd、QTcd分别为(57.60±11.74)及(76.62±9.35)ms,与运动前及运动后ST段恢复正常时的QTd、QTcd之间存在显著差异(P 0.05).结论平板运动负荷试验诱发冠心病患者心电图ST段呈缺血型改变时QTd、QTcd明显增大.冠心病患者心肌缺血时存在心肌复极的不均一性和电的不稳定性,是导致严重室性心律失常和心脏猝死的独立危险因素。" @default.
- W3029420021 created "2020-06-05" @default.
- W3029420021 creator A5044463592 @default.
- W3029420021 date "2009-07-25" @default.
- W3029420021 modified "2023-09-25" @default.
- W3029420021 title "平板运动试验心电图阳性各时段QTd和QTcd观察" @default.
- W3029420021 doi "https://doi.org/10.3760/cma.j.issn1673-8799.2009.07.53" @default.
- W3029420021 hasPublicationYear "2009" @default.
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