Department of Cardiology, Private Medicalpark Hospital, Ankara.
Department of Cardiology, Diyarbakir Gazi Yasargil Training and Research Hospital, Diyarbakir, Turkey.
Blood Press Monit. 2022 Aug 1;27(4):254-258. doi: 10.1097/MBP.0000000000000597. Epub 2022 Apr 18.
The frontal QRS-T (f-QRST) angle is a measure of depolarization and repolarization heterogeneity and may be a predictor of poor ventricular health. We aimed to investigate whether the f-QRST angle indicates myocardial damage and predicts newly diagnosed true hypertension (HT) in patients with white coat hypertension.
We measured the f-QRST angle of 63 subjects with WHC and 105 patients with newly diagnosed HT. Laboratory tests and ABPM were followed up in all patients. The f-QRST angle was calculated on the surface ECGs.
Of the patients in the study, 38.9% were female and 61.1% were male. The mean age was calculated as 59 ± 11 years. A comparison between both groups with the f-QRST angles was seen to be statistically significantly higher in the true HT group. The results of the receiving operating characteristic curve showed that the AUC value of the f-QRST angle was 0.94 (95% confidence interval, 0.91-0.97), the cutoff value was 60.5°, the sensitivity was 89.5%, and the specificity was 81%.
In our study, the f-QRST angle was found to be lower in patients with WHC than in true hypertensive patients. We think that ECG, which is a simple test, can be used to distinguish between true HT and WHC.
额面 QRS-T（f-QRST）角是去极化和复极异质性的度量指标，可能是心室健康不良的预测因子。我们旨在研究 f-QRST 角是否表明心肌损伤，并预测白大衣高血压患者中新诊断的真性高血压（HT）。
我们测量了 63 例 WHC 患者和 105 例新诊断 HT 患者的 f-QRST 角。所有患者均进行了实验室检查和 ABPM 随访。在体表心电图上计算 f-QRST 角。
在研究的患者中，女性占 38.9%，男性占 61.1%。平均年龄计算为 59±11 岁。两组 f-QRST 角的比较显示，真 HT 组明显较高。接受者操作特征曲线的结果表明，f-QRST 角的 AUC 值为 0.94（95%置信区间，0.91-0.97），临界值为 60.5°，敏感性为 89.5%，特异性为 81%。
在我们的研究中，与真性高血压患者相比，WHC 患者的 f-QRST 角较低。我们认为心电图是一种简单的测试，可以用来区分真性 HT 和 WHC。
