Assessment of subclinical left ventricular changes in essential hypertensive patients with hyperuricemia: A three-dimensional speckle-tracking echocardiography study

Abstract

Objective: To evaluate the effect of hyperuricemia (HU) on subclinical changes of left ventricle (LV) function and structure in patients with hypertension (HT) using three-dimensional speckle-tracking echocardiography (3DSTE) and to explore the relationships between serum uric acid (SUA) levels and three-dimensional speckle tracking echocardiography (3DSTE) parameters in hypertensive and nonhypertensive patients with HU. Methods: Four age- and sex-matched groups were studied: I: healthy controls, HT– HU– (n = 40); II: HT– HU+ (n = 40); III: HT+ HU– (n = 40); IV: HT+ HU+ (n = 44). Conventional echocardiography and 3DSTE were recorded. Relative wall thickness (RWT) and left ventricular mass index assessed by M-mode echocardiography (LVMi-M) were calculated. 3DSTE parameters including LV volumes and ejection fraction (EF), LVMi-3D, global longitudinal strain (GLS), and global circumferential strain (GCS) were compared. The relationships between SUA levels and 3DSTE parameters were investigated. Results: Despite LV diameters, LV volumes and EF were similar among groups (all p > 0.05), GLS decreased and LVMi-3D increased from controls (group I) to patients with HU or HT alone (group II or III), and patients with both HU and HT (group IV) (all p < 0.05). SUA levels were significantly correlated with the absolute value of GLS (r = −0.461, p < 0.05) and LVMi-3D (r = 0.504, p < 0.05) in hypertensive and nonhypertensive patients with HU. Conclusions: HU may exacerbate LV systolic dysfunction and remodeling in hypertensive patients, which can be detected by 3DSTE. Early uric acid lowing treatment may be beneficial for hypertensive patients with HU.

Keywords

• hypertension
• hyperuricemia
• left ventricular
• speckle-tracking
• three-dimensional