Abstract:
:To evaluate the correlation between endothelial dysfunction and multiple target organ damage (TOD), we measured endothelial function using high-resolution ultrasonography in hypertensive patients with or without TOD. Two hundred and eighty patients with hypertension were divided into four groups as follows: no TOD (Group I, n=61); 1 TOD (Group II, n=113); 2 TOD (Group III, n=59); and >or=3 TOD (Group IV, n=47). Endothelial function was assessed by endothelium-dependent flow-mediated dilatation (FMD) and -independent vasodilation (after sublingual administration of nitroglycerin) of the brachial artery using high-resolution vascular ultrasound. We also assessed the intima-media thickness (IMT) of the common carotid, carotid to femoral pulse wave velocity (cf-PWV) and left ventricular mass index (LVMI). FMD was inversely associated with the number of affected organs. FMD was lower in the patient groups with >or=3 TOD (Group IV: 6.85+/-4.70% vs Group II: 10.00+/-6.15%, P<0.01), 2 TOD (Group III: 7.37+/-5.02% vs Group II, P<0.01) and 1 TOD as compared with patients with no TOD (Group I: 11.88+/-7.11% vs Group II, P<0.05). In univariate correlation analysis, there was a significant relationship between FMD and IMT, serum creatinine, LVMI and cf-PWV. In stepwise multivariate regression analysis, FMD still correlated with waist size (beta=-0.283, P<0.01), age (beta=-0.231, P<0.05) and IMT (beta=-0.197, P=0.05). These findings suggested that reduced FMD was associated with the number of TOD and may be considered an indicator for evaluating TOD.
journal_name
J Hum Hypertensjournal_title
Journal of human hypertensionauthors
Xu JZ,Zhang Y,Wu SN,Niu WQ,Zhu DL,Gao PJdoi
10.1038/jhh.2009.10subject
Has Abstractpub_date
2009-11-01 00:00:00pages
751-7issue
11eissn
0950-9240issn
1476-5527pii
jhh200910journal_volume
23pub_type
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journal_title:Journal of human hypertension
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pub_type: 临床试验,杂志文章,多中心研究,随机对照试验
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