Consistency of blood pressure and impact on cardiovascular structure over 20 years in young men
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CitationJ. Intern. Med. 2010, 267(3):295-304
AbstractOBJECTIVE: To identify, in a prospective study, how blood pressure levels at the age of twenty predict hypertension and cardiovascular remodelling 20 years later. METHODS: Twenty-year-old men with blood pressure (BP) elevation [systolic blood pressure (SBP) 140-160 and/or diastolic blood pressure (DBP) 85-95 mmHg; blood pressure elevation (BPE) group] or normal BP [SBP 110-130 and DBP 60-80 mmHg; normal controls (NC) group] entered the study in 1987. In 2007, follow-up was conducted including ambulatory BP, echocardiography, anthropometric and intima media thickness (IMT) measurements. RESULTS: Assessed with 24-h ambulatory BP, the prevalence of hypertension was 35/47 (74.5%) and 1/17 (5.9%) in the BPE and NC group at follow-up respectively. Twenty-four hour mean arterial pressure (MAP) increased from 86.6 (0.8) to 97.2 (1.2) (P < 0.0001), and from 83.1 (1.5) to 88.1 (1.2) mmHg (P < 0.01) from baseline to follow-up in the BPE and NC group respectively. At follow-up, left ventricular mass index (LVMI) was 122 (4) and 106 (4) g m(-1) in the BPE and NC group (unpaired t-test; P < 0.01) respectively, whilst IMT was 0.61 (0.01) and 0.57 (0.01) mm in the BPE and NC group (P < 0.05) respectively. In a logistic regression model, prevalence of hypertension was best explained by office MAP and 24-h DBP at baseline (R(2) 0.333; P < 0.05). A combined model of office MAP, body mass index and insulin levels at baseline explained 56% of LVMI at follow-up. CONCLUSIONS: BP elevation in young age predicts hypertension and adverse cardiovascular remodelling at the age of 40 years. Baseline office MAP is the best predictor of hypertension, 24-h MAP and LVMI.
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