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Year : 2019  |  Volume : 9  |  Issue : 2  |  Page : 100-104

The relation between insulin resistance and left ventricular mass in hypertensive nondiabetic patients

Department of Cardiology, Faculty of Medicine, Zagazig University, Zagazig, Egypt

Correspondence Address:
Dr. Ahmed Shawky Shereef
Department of Cardiology, Faculty of Medicine, Zagazig University, Zagazig
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/JICC.JICC_25_19

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Background: Patients with essential hypertension (EH) are often associated with left ventricular (LV) hypertrophy (LVH) and insulin resistance (IR). Insulin may have a direct growth-promoting effect on cardiomyocytes. Hence, the aim of this work was to study the effect of IR on LV geometry in newly diagnosed arterial hypertensive nondiabetic patients not taking any antihypertensive medication. Methods: One hundred and eight patients were included in our study including 88 newly diagnosed hypertensive nondiabetic patients and 20 healthy controls. Fasting glucose, insulin levels, total cholesterol, high-density lipoprotein-cholesterol (HDL-C), low-density lipoprotein-cholesterol, and triglyceride levels were measured. Homeostasis Model Assessment (HOMA) index was calculated for the assessment of IR. Echocardiography measurements of LV dimensions such as LV mass (LVM) and LVM index (LVMI) were calculated. Results: Fasting blood insulin and HOMA index were significantly higher in patients with LVH than patients with normal LV dimensions and controls. We found highly significant positive correlations between insulin levels, LVM, and LVMI. In addition, we found highly significant positive correlations between HOMA index, LVM, and LVMI. Conclusion: We conclude that cardiac changes in hypertensive patients including those with increased wall thickness, LVM, and LVMI are mediated, at least in part, by increased insulin levels and the HOMA index.

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