Carotid intima-media thickness and arterial stiffness in type 1 diabetic patients are dependent on age and mean blood pressure.

AIM

The aim of the study was to assess the factors that influence carotid intima-media thickness (CIMT) and arterial stiffness in type 1 diabetic patients.

MATERIAL AND METHODS

We included 87 type 1 diabetic patients (44 women, 43 men), median age 34 years, disease duration 10 years, HbA1c 8.2%. CIMT was measured using high resolution ultrasonography. Arterial stiffness was assessed with the use of digital volume pulse analysis and tonometric measurement of wave reflection and central haemodynamics. Serum C-reactive protein (hsCRP), matrix metalloproteinase-9 (MMP-9), soluble intracellular adhesion molecule-1 (sICAM-1) and myeloperoxidase (MPO) concentrations were also measured.

RESULTS

CIMT and arterial stiffness correlated with age, duration of diabetes, systolic and diastolic blood pressure, GFR-glomerular filtration rate and sICAM-1. Multiple regression analysis identified only age as significant determinant of CIMT. Age, mean blood pressure and GFR, but not duration of diabetes were significant determinants of arterial stiffness.

CONCLUSIONS

In type 1 diabetic patients both CIMT and arterial stiffness were related to age, blood pressure, kidney function and sICAM-1 serum concentration.