Objective To explore the correlation between left ventricular hypertrophy (LVH) and dynamic parameters of blood pressure as well as blood pressure variation in patients with essential hypertension (EH). Methods From January to September, 2013, 581 patients with EH were divided into hypertrophy group (n=161) and non-hypertrophy group (n=420) according to the left ventricular mass index (LV-MI). The clinical data, biochemical indexes and dynamic parameters of blood pressure were compared, and the multiple factors regression was used to analyze the risk factors of LVH. Results The incidence of LVH was higher in women than in men (χ2=4.836, P=0.03), the level of blood uric acid was higher in the hypertrophy group than in the non-hypertrophy group (t=-11.540, P<0.001). The clinic systolic blood pressure was higher in the non-hypertrophy group (t=-3.805, P<0.001). There was significantly difference in 24-hour systolic blood pres-sure load, systolic blood pressure drops at night and average systolic blood pressure between two groups (t>2.770, P<0.05). Multi-factor Lo-gistic regression analysis showed that gender (OR=1.674, P=0.044) and 24-hour systolic blood pressure load (OR=1.021, P=0.003) associat-ed with LVH. Conclusion The occurrence of LVH in patients with EH was closely related to the 24-hour systolic blood pressure load, and was higher in women than in men.

To analyze the relationship among ambulatory blood pressure (AMBP), ankle brachial index (ABI) and left ventricular mass index (LVMI) in hypertensive patients. Methods 578 hypertensive inpatients were reviewed. Results The general clinical dataof selected patients, their ABI, LVMI were not different significantly between male and female. The correlation analysis showed that LVMI was positively correlated with the 24-hour average systolic (r=0.245, P=0.000) or diastolic (r=0.158, P=0.000) blood pressure, whereas negatively correlated with percent of systolic (r=－0.104, P=0.012) or diastolic (r=－0.132, P=0.001) blood pressure declining at night. No significant correlation was found between LVMI and BMI. Multiple regression analysis revealed that LVMI was significant independently positive correlated with 24-hour average systolic blood pressure (P=0.000). Conclusion LVMI does not correlate with ABI, but independent positive related with 24-hour average systolic blood pressure.

Objective To explore the relationship between brachial ankle pulse wave velocity (BaPWV) change and carotid artery plaque formation in middle-aged and elderly patients with essential hypertension(EH).Methods A cross sectional study was conducted in 409 patients who were admitted in Hypertension Department in our hospital from January to September 2013.Their age ranged from 35 to 75 years,with mean aged(53.2±15.0) years.Parallel carotid artery ultrasound and BaPWV examination were performed in all patients.According to whether carotid plaques were present,patients were divided into two groups:carotid plaque group and control group.And carotid plaque group was sub-grouped into normal BaPWV group (BaPWV ＜ 1400cm/s) and increased BaPWV group(BaPWV≥1400 cm/s) according to BaPWV levels.The detection rate of carotid plaque was compared between normal BaPWV group and increased BaPWV group.The correlation between BaPWV and carotid plaques was analyzed by multivariate logistic regression analysis.Results Compared with the control group,carotid plaque group showed the prevalence of carotid plaques was increased along with the increases of age(t=11.0,P=11.0),systolic blood pressure (t=3.87,P=3.87),diastolic blood pressure(t=3.70,P=0.00),pulse pressure(t=6.13,P 6.13),total cholesterol levels(t=2.57,P=0.01).The detection rate of carotid plaque was higher in increased BaPWV group than in normal BaPWV group [62.6％(159/254) vs.43.2％(67/155),x2=14.61,P=0.00].After adjusting for age,blood pressure and other cardiovascular risk factors,the multivariate logistic regression analysis showed that increased BaPWV was an independent risk factor for carotid plaques(OR=2.06,P=0.05),and age,smoking,systolic pressure,diastolic pressure,pulse pressure,total cholesterol,low-density lipoprotein cholesterol,triglyceride levels were positively correlated with carotid plaques.Conclusions BaPWV is one of the independent impact factors for carotid plaques,which plays an important role in early diagnosis and screening for subclinical vascular lesions.