JOURNAL ARTICLE

[3-dimensional speckle tracking echocardiography for left ventricular rotation and twist in patients with hypertension]

Wenhui Zhu, Yan Tong, Wengang Liu, Yan Wang, Chunyan Li, Mengxi Zhang
Zhong Nan da Xue Xue Bao. Yi Xue Ban, Journal of Central South University. Medical Sciences 2013, 38 (3): 231-6
23545831

OBJECTIVE: To analyze the characteristics of left ventricular rotation and twist in patients with essential hypertension (EH) of different left ventricular configurations by 3-dimensional speckle tracking echocardiography (3D-STE).

METHODS: A total of 106 EH patients were divided into 4 groups: a left ventricular normal configuration (LVN) group (n=30), a concentric remodeling (CCR) group (n=31), a concentric hypertrophy (CCH) group (n=29), an eccentric hypertrophy (ECH) group (n=16), and a control group of 30 healthy subjects. The parameters of LVEF, peak basal rotation (Prot-B), peak apical rotation (Prot-A), left ventricular peak apical rotation (LV-rot), and left ventricular peak apical twist (LV-tw) were compared.

RESULTS: The left ventricular mass index in the EH groups, which kept increasing, was higher than that in the normal control group (P<0.05). Compared with the normal control group, LVN and ECH group, the left ventricular posterior wall thickness, interventricular septum at end-diastole, and relative wall thickness significantly increased in the CCH and CCR group (P<0.05). LVEF showed no significant difference among the normal control, LVN, CCR and CCH group (P>0.05), but LVEF was lower in the ECH group than in other groups (P<0.05). Compared with the normal control group, Prot-B, Prot-A, LVrot and LVtw were significantly higher in the LVN, CCR and CCH group (P<0.05), but decreased in the ECH group (P<0.05).

CONCLUSION: 3D-STE can evaluate the left ventricular rotation and twist in EH patients with different configurations, and reflect changes in the left ventricular systolic function in EH of different configurations.

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