On the contrary, QTc assessed by the Framingham, Fridericia, and Hodges formulas was similar to that in AF (Figure). CONCLUSION. In ECG during atrial fibrillation, due its high heart rate, Bazzett's formula, although the most used, seems to be the most imprecise in QTc estimation....
ECG Measurements For each ECG, we calculated the QTc value using the Bazett, Fridericia, and Framingham formulae (Bazett: QT interval divided by the square root of the RR interval; Fridericia: QT interval divided by the cube root of the RR interval; Framingham: QT interval + 0.154 ×...
12导联动态心电图QTc间期对冠心病患者心肌缺血发生情况及病变支数的评估价值 C H I N E S EP R I M A R YH E A L T HC A R EV o l .36，N o .6J u n ，2022冠心病是目前临床中较为常见的发生于心脏冠状动脉的疾病，患者常伴随出现冠状动脉管壁失去弹性、增厚变硬及管腔缩小，常引起患者出现...
展开更多 Objective To analyze the features of initial ECG in patients with acute organophosphorus pesticide poisoning, and also to explore the value of QTc interval in predicting the prognosis of patients with acute organophosphorus pesticide poisoning.Methods A retrospective an...MORE 作者 严专 ...
value of different ECG indexes in arrhythmia of AMI patients in acute stage 诊断指标 ROC曲线下面积 最佳临界值/ms 灵敏度/% 特异度/% 正确率/% 阳性预测值/% 阴性预测值/% Tp-Tec 0.9218 125.26 88.5 89.5 89.1 85.1 89.5 QTc 0.8231 433.32 76.5 83.2 80.6 74.5 83.2 Tp-Te/QT 0.9608 0.29 92.4 ...
Electrocardiography (ECG) profile before and after 72 hours' treatment with AL was noted for discernable QTc interval changes. The calculated prolongation of the QTc interval between these two study points was analyzed using Paired samples t-test. The statistically significant P value for this study...
【摘要】 目的 分析慢性精神分裂症患者ＱＴｃ间期延长临床危险因素。方法 选取慢性精神分裂症住院患者５３５例，按ＱＴｃ均值（４４０ｍｓ）分为延长组和非延长组，分析其人口学数据、心电图数据、血生化数据、用药情况等临床因素，探讨ＱＴｃ间期延长的可能危险因素。结果 延长组年龄、女性比例、空腹血糖值、女性...
in the Philips • Diagnostic 12-lead ECG captured at the IntelliVue Patient Monitoring Systems and performance results Patient Monitor can be analyzed for a global QT/ QTc measurement using the Philips 12-lead from its evaluation. analysis algorithm at the Information Center. • Automated ...
Qualitative importance of QTc dispersion on the base line ECG in patients with MI is recognized clinically but quantification of this phenomenon is less commonly used in clinical practice, which might be a better independent risk predictor of this group of patients. Methods: A total of 100 ...
临床研究 Clinical Significance of Dynamic Electrocardiogram QTc in the Diagnosis of Myocardial Ischemia of Suspected Coronary Heart DiseaseSHANZi-qin.(DynamicECGRoomofFunctionDivision,BeijingShunyiDistrictTCMHospital,Beijing101300,China) Abstract:ObjectiveTo discuss clinical significance of dynamic electrocardiogram ...