期刊
CLINICAL AND EXPERIMENTAL HYPERTENSION
卷 44, 期 3, 页码 215-222出版社
TAYLOR & FRANCIS INC
DOI: 10.1080/10641963.2021.2018599
关键词
Hypertension; insulin resistance; triglyceride glucose index; diastolic function; left ventricular structure
This study revealed that a high TyG index is associated with LV diastolic functional impairment and structural abnormality in newly diagnosed hypertensive patients without diabetes or cardiovascular disease, independent of potential confounders.
Introduction Left ventricular (LV) diastolic dysfunction and structural abnormalities are common cardiac changes in hypertension (HTN), and several factors other than high blood pressure (BP) may play a role in these changes. The aim of this study was to reveal the relationship between triglyceride glucose (TyG) index, a novel parameter for insulin resistance (IR), with LV diastolic function and structure in hypertensive patients. Material and method A total of 119 newly diagnosed, untrated hypertensive patients free of diabetes and/or cardiovascular complications were included in this study. IR was estimated with the TyG index calculated from ln [fasting TG (mg/dL) x fasting blood glucose (mg/dL)/2]. Two-dimensional and Doppler echocardiographic examinations were performed to assess LV diastolic functions and structure. Results Based on median TyG index, 51 patients was assigned as group I (<8.7) and 68 patients as group II (>8.7). In patients with high TyG index, left atrial volume index (LAVi) (p < .001) LV mass index (LVMI) (p = .016), E/e' ratio (p < .001) increased, and e' velocity (p < .001) and E/A ratio (p = .028) decreased. There was a statistically significant correlation between TyG index and these parameters (all p > .05). Stepwise multiple regression analysis demonstrated that the relationship of TyG index with LV diastolic function and structure was independent of potential confounders (all p < .001). Conclusion This study suggest that a high TyG index is related to LV diastolic functional impairment and structure abnormality in newly diagnosed hypertensive patients in the absence of diabetes or CVD.
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