Abstract：Objective To explore the value of echocardiographic layer specific strain technique for early diagnosis of hypertensive heart disease. Methods A total of 137 patients with essential hypertension were selected as case group whose left ventricular ejection fraction (LVEF) was ≥50% while 137 volunteers matched with (age±5) and gender in 1 ∶1 were selected as control group who had undergone physical examination in our hospital during the same period. Routine echocardiography was performed to collect relevant parameters, and the cases were divided into left ventricular hypertrophy (LVH) group and nonLVH group (NLVH group) according to the “Expert consensus on the diagnosis and treatment of hypertension complicated with left ventricular hypertrophy in Asia”. The longitudinal peak strain (LPS) and the time to peak longitudinal strain (TTPLS) in myocardial systolic phase of the subendocardial layer, endocardial layer and epicardium were detected by layered strain technique while the global longitudinal peak strain (GLPS) and the peak strain dispersion (PSD) were calculated. ResultsLVEF does not vary significantly among the three groups (P>0.05). Left atrium diameter (LAD) of the NLVH group is higher than that of the control group; in LVH group, LAD, left ventricular end diastolic diameter (LVEDD), left ventricular endsystolic diameter (LVESD) and interventricular septal thickness (IVST) are all greater than those in the control group (P<0.05); there is no statistically significant difference of LVEDD, LVESD and IVST between the NLVH and control group (P>0.05). In the LVH group, LPS values in myocardial systolic phase of subendocardial and endocardial layer are higher than those in the control group and NLVH group (P<0.05); there is no statistically significant difference of LPS in myocardial systolic phase of subendocardial and endocardial layer between the control group and NLVH group. LPS value in myocardial systolic phase of epicardial layer dose not vary significantly among the three groups (P>0.05). In the LVH group, the TTPLS values in subendocardial, endocardial and epicardial layer are significantly lower than those in the control group and NLVH group (P<0.05); there is no statistically significant difference of TTPLS value in subendocardial and epicardial layer between the control group and the NLVH group (P>0.05); in the NLVH group, TTPLS value in endocardial layer is significantly lower than that in the control group (P<0.05). From the control group to the NLVH and LVH group, the PSD value sequentially increases while GLPS value sequentially decreases (P<0.05). Conclusion The left ventricular lesions of hypertensive patients with preserved LVEF could be evaluated by PSD and GLPS through echocardiographic layerspecific strain technique. It provides a reference for the early diagnosis of hypertensive heart disease.
黄敏,胡福长,何丽聘,陈燕华. 超声心动图分层应变技术对高血压心脏病的早期诊断价值[J]. 实用心电学杂志, 2021, 30(1): 37-41.
HUANG Min, HU Fuchang, HE Lipin, CHEN Yanhua. Early diagnostic value of echocardiographic layer specific strain technique on hypertensive heart disease. JOURNAL OF PRACTICAL ELECTROCARDIOLOGY, 2021, 30(1): 37-41.
