Detection and clinical significance of Tp-e interval extension of sudden coronary death
- VernacularTitle:冠心病猝死Tp-e间期延长的检测与临床意义
- Author:
Xian’e TENG
1
;
Liuning LI
;
Huan WANG
;
Chaorui XU
;
Zhaoying YANG
Author Information
1. 黑龙江省医院老年心内科
- Keywords:
Coronary heart disease;
Sudden death;
Tp-e interval
- From:
China Modern Doctor
2015;(3):26-28
- CountryChina
- Language:Chinese
-
Abstract:
Objective To investigate the detection and clinical significance of Tp-e interval extension of sudden coro-nary death. Methods A total of 502 patients with coronary heart disease were selected, of which 46 patients with sud-den coronary death were assigned to the sudden death group and the other 456 patients were assigned to the survival group. The Tp-e, Tp-e/√RR , heart rate-corrected QT inverval (QTc) and left ventricular ejection fraction of the two groups were compared and the clinical significance of Tp-e interval extension for sudden coronary death was decided. Results Compared to the survival group, the sudden death group had significantly extended Tp-e, Tp-e/√RR and QTc(P<0.05);Compared to the survival group, the sudden death group had significantly reduced LVEF (P<0.05); Tp-e extension was positively correlated to sudden coronary death and QTc(P<0.05). Conclusion The Tp-e interval extended obviously in the patients with sudden coronary death and thus can serve as a predictive risk factor of sudden coronary death.
