• Department of Cardiology, West China Hospital, Sichuan University, Chengdu Sichuan 610041, P. R. China;
CHENXiao-ping, Email: chenxp2@yahoo.cn
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Objective To investigate the significance of using the term "high-normal blood pressure" and its intervention in the early stage. Methods In 1992 and 2007, we performed two similar investigations focusing on cardiovascular risk factors in 711 people in Chengdu city. Since 114 individuals were diagnosed with hypertension, 597 people without hypertension were eligible and divided into two groups:the normal-pressure[<120/80 mm Hg (1 mm Hg=0.133 kPa)] group and the high-normal blood pressure (systolic blood pressure 120-139 mm Hg and/or diastolic blood pressure 80-89 mm Hg) group. Data in the two investigations were compared to explore the relationship among high-normal blood pressure, cardiovascular disease (CVD) and hypertension. Results The high-normal blood pressure group had a higher level of CVD risk factors both in 1992 and 2007, and the 15-year cumulative incidence of hypertension in the high-normal blood pressure group was higher than that of normal-pressure group (91.2% vs. 22.2%, P<0.001). After adjusting for serum lipid, body weight and other CVD risk factors, high-normal blood pressure could predict the progression into hypertension[HR=5.354, 95% CI (4.094, 7.002), P=0.001]. There was no statistics difference in CVD prevalence in the two groups in 1992, but in 2007 the prevalence of CVD tended to be higher in the high-normal blood pressure group (6.6% vs. 3.1%, P=0.052). Conclusion High-normal blood pressure is a special stage of blood pressure with high level of CVD risk factors and high potential to progress into hypertension. The term should be emphasized and intervention should be done in the early stage for high-normal blood pressure people to prevent from hypertension and CVD.

Citation: ZHONGGui-you, WANGYong, HESen, WANShi-xi, PANPei, ZHOUYu-fei, WENBo, CHENXiao-ping. High-normal Blood Pressure: A Blood Pressure Stage Needs Serious Attention. West China Medical Journal, 2014, 29(1): 1-4. doi: 10.7507/1002-0179.20140001 Copy

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