Geometrical and functional changes of left heart in adults with prehypertension and hypertension: a cross-sectional study from China

BMC Cardiovascular Disorders

Research Article

Yingxian Sun¹  Xiaofan Guo¹  Shuang Chen¹  Tan Li²  Jun Yang² 

[1] Department of Cardiology, The First Affiliated Hospital of China Medical University, 155 Nanjing North Street, Heping District, 110001, Shenyang, People’s Republic of China;Department of Cardiovascular Ultrasound, The First Affiliated Hospital of China Medical University, Shenyang, People’s Republic of China;

关键词: Echocardiography;    Hypertension;    Prehypertension;    Left ventricular geometry;   

DOI  :  10.1186/s12872-016-0286-3

 received in 2016-01-16, accepted in 2016-05-14,  发布年份 2016

来源: Springer

【 摘 要 】

BackgroundStudies regarding the association between prehypertension and the structual changes of left heart are scanty. However, which type of the geometrical change of left heart is predominated one in prehypertension and hypertension is controversial. It is therefore important to investigate geometrical and functional changes of left heart in adults with prehypertension and hypertension because of their prognostic significance.MethodsThe study was based on a cross-sectional design, a total of 10547 participants were classified into normotension group, prehypertension group and hypertension group. We analyzed clinical characteristics, echocardiographic parameters and distribution of left ventricular (LV) geometrical patterns in different groups.ResultsParticipants with prehypertension had higher values of most of echocardiographic parameters than those with normotension. The prevalence of left ventricular hypertrophy(LVH) was statistically different among three groups (P <0.001), and the rates of LVH in the three groups were 5.9, 8.6, 28.4 % by indexation to height2.7 and 4.9, 5.3, 19.3 % by indexation to BSA, respectively. The prevalence rates of eccentric hypertrophy, concentric remodeling and concentric hypertrophy were 7.3 %, 5.3 % and 1.4 % in prehypertension group, and 17.8 %, 8.8 % and 10.6 % in hypertension group. Logistic regression analysis showed that systolic blood pressure (SBP), diastolic blood pressure (DBP) and mean artery pressure (MAP) were all independent risk factors for left cardiac structural changes, and pulse pressure (PP) was independent risk factor for concentric and eccentric hypertrophy. Among four indices, DBP levels with OR values of 1.192, 1.759 and 1.278 were the strongest indicator for concentric remodeling, concentric hypertrophy and eccentric hypertrophy, respectively (P <0.001).ConclusionsThere exists LV geometrical change in adults with prehypertension and hypertension in rural Chinese population, and the eccentric hypertrophy was the highest proportion of geometric alterations. SBP, DBP, MAP and PP were all positively associated with left cardiac structural changes, and the association of DBP was the strongest.

【 授权许可】

CC BY   
© The Author(s). 2016