Objective: Present study is undertaken to understand genesis of variability in QTC interval in healthy subjects as per age, sex and weight parameters and planning preventive measures for any abnormal findings.Materials and methods: 315 healthy normotensive healthy subjects (male=179, female=136) in ...
In the subgroup of patients above 15 years and without beta blocker treatment, the sex effect (female minus male) on QTci interval duration was 17 ms (4.1; 29.9) in LQT1 patients. QTc duration was not different between sex in LQT2 and in LQT3 patients (mean difference 3 ms (21.6; ...
and the details of the features are discussed in the Discussion section. For the models with additional baseline features, we added the six baseline characteristics of patients (age (normalized), gender (0 female; 1 male), hypertension (0 no; 1 yes), diabetes (0 no; 1 yes), dyslipidemia...
Also the mean QRS duration in female was significantly smaller than male (p = 0.03). There were no statistically significant differences in the mean R/T ratio, QTc interval, Tpeak-end duration between subgroups, six postures and three lead (p > 0.05).Postures, electrodes location and cardiac...
No arrhythmic phenotypes were observed in available female carriers, but 3/4 (75%) showed minor ECG abnormalities such as AV block (PR < 200 ms) and/or prolonged QTc interval (>470 ms, range 478–488 ms). Moreover, a total of seven individuals from a single kindred carried the p....