• Pauliina Kangas, Antti J Tikkakoski, Anna M Tahvanainen, Miia H Leskinen, Jani M Viitala, Mika Kähönen, Tiit Kööbi, Onni J Niemelä, Jukka T Mustonen, and Ilkka H Pörsti.
• School of Medicine, University of Tampere, 33014 Tampere, Finland. pauliina.kangas@uta.fi
• Metab. Clin. Exp. 2013 Aug 1; 62 (8): 1114-22.

ObjectiveTo evaluate the hemodynamic characteristics of metabolic syndrome (MetS) in the absence and presence of hypertension.Materials/MethodsAltogether 166 subjects without previously diagnosed cardiovascular disease, diabetes, or antihypertensive medication, were allocated to four groups: control, hypertension only, MetS without hypertension, and MetS with hypertension (mean age 44-46 years). Cut-point for hypertension was blood pressure ≥140/90 mmHg. Other criteria of MetS were as defined by Alberti et al. 2009. Hemodynamic variables were measured using whole-body impedance cardiography and pulse wave analysis.ResultsPulse wave velocity was higher in hypertensive and normotensive subjects with MetS than controls (p<0.05), and in the hypertensive MetS group than subjects with hypertension only (p<0.05). Aortic pulse pressure was higher in the two hypertensive groups than the two normotensive groups (p<0.05). Systemic vascular resistance index was higher in the hypertensive than normotensive MetS group (p<0.05), and in the group with hypertension alone than in controls (p<0.05). Heart rate was higher in the hypertensive Mets group than in controls and subjects with hypertension only (p<0.05). Cardiac index did not differ, while stroke index was lower in both groups with MetS than groups without MetS. Augmentation pressure was higher in the hypertensive MetS group than in controls and normotensive MetS group (p<0.05).ConclusionsPulse wave velocity, an acknowledged marker of arterial stiffness, was associated with MetS even in the absence of hypertension. This emphasizes the importance of the prevention and treatment of MetS.Copyright © 2013 Elsevier Inc. All rights reserved.

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