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- W2370648415 abstract "Objective To investigate the influence of percutaneous coronary intervention(PCI) on the Tpeak-Tend interval(Tp-Te interval) and the QT dispersion(QTd) of patients with unstable angina(UA) and its relationship with ventricular arrhythmia(VA).Methods Sixty-two patients with UA were included in this study.The longest Tp-Te intervals and QTd values in 12-lead surface electrocardiogram at hospital admission,in post-PCI day 1 and in post-PCI day 7 were measured and calculated.The occurrence of VA within 24 hours of admission and in post-PCI day 7 was recorded.All the patients were self control between before and after surgery.The Tp-Te,QTd,VA occurrence and other indicators of all the patients before and after the surgery were compared.According to the coronary angiography, patients with UA were further divided into three groups: single vessel lesion group,double vessel lesion group and triple vessel lesion group.The Tp-Te,QTd,VA occurrence and other indicators of the three groups of patients before and after PCI were compared.Results Compared with the single vessel lesion group,the Tp-Te interval and QTd value of the double vessel lesion group and the triple vessel lesion group increased(P 0.05).Compared with before the PCI,the Tp-Te intervals and QTd values of the single vessel lesion group and the double vessel lesion group within 24 hours after PCI and in post-PCI day 7 reduced(all P 0.05),the Tp-Te interval and QTd value of the triple vessel lesion group in post-PCI day 7 also reduced(all P 0.05),but the Tp-Te interval and QTd value of the triple vessel lesion group within 24 hours after PCI did not change significantly(P 0.05).Compared with within 24 hours of admission,the occurrence rate of VA in post-PCI day 7 reduced(20.97% vs 8.06%)(P 0.05).Conclusion PCI can reduce the Tp-Te interval and QTd value of patients with UA,thereby reducing their occurrence rate." @default.
- W2370648415 created "2016-06-24" @default.
- W2370648415 creator A5058694285 @default.
- W2370648415 date "2013-01-01" @default.
- W2370648415 modified "2023-09-28" @default.
- W2370648415 title "Changes and significance of Tpeak-Tend interval and QT dispersion in patients with unstable angina before and after interventional therapy" @default.
- W2370648415 hasPublicationYear "2013" @default.
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