Detection of carotid atherosclerosis in individuals with masked hypertension and white-coat hypertension by self-measured blood pressure at home: The Ohasama Study
Detection of carotid atherosclerosis in individuals with masked hypertension and white-coat hypertension by self-measured blood pressure at home: The Ohasama Study
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DOI:
10.1097/hjh.0b013e3280115bbf
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发表时间:
2007-02-01
影响因子:
4.9
通讯作者:
Imai, Yutaka
中科院分区:
文献类型:
--
作者:
Hara, Azusa;Ohkubo, Takayoshi;Imai, Yutaka
Objective To investigate carotid atherosclerosis in individuals with masked hypertension (MHT) and white-coat hypertension (WCHT) in a general population.Methods Self-measurement of blood pressure at home (HBP) and casual blood pressure (CBP) measurements were recorded in 812 individuals aged at least 55 years (mean 66.4 years) from the general Japanese population. The intima-media thickness (IMT) of the near and far wall of both common carotid arteries was measured and averaged. The relationships between carotid atherosclerosis (IMT and plaque) and the four blood pressure groups (sustained normal blood pressure: HBP < 135/85 mmHg, CBP < 140/ 90 mmHg; WCHT: HBP < 135/85 mmHg, CBP < 140/ 90 mmHg; MHT: HBP < 135/85 mmHg, CBP < 140/ 90 mmHg; sustained hypertension: HBP >= 135/85 mmHg, CBP >= 140/90 mmHg) were examined using multivariate analysis adjusted for possible confounding factors.Results Adjusted IMT in individuals with sustained hypertension [0.77 mm; 95% confidence interval (Cl) 0.75 to 0.79 mm] and MHT (0.77 mm; 95% Cl 0.73 to 0.80 mm) was significantly greater than in those with sustained normal blood pressure (0.71 mm; 95% Cl 0.69 to 0.72 mm) and WCHT (0.72 mm; 95% Cl 0.71 to 0.74 mm) (P < 0.0001). The odds ratios for the presence of plaques in all four groups were similar to the trends in IMT.Conclusions Our findings imply that CBP measurements alone are insufficient to distinguish individuals at high risk of carotid atherosclerosis from those at low risk. However, these individuals do have distinct HBP measurements, suggesting that HBP measurement could become a valuable tool for predicting carotid atherosclerosis. J Hypertens 25:321 -327 (c) 2007 Lippincott Williams & Wilkins.