Early atherosclerosis in childhood type 1 diabetes: role of raised systolic blood pressure in the absence of dyslipidaemia

Schwab, Karl; Doerfer, Jürgen; Krebs, Andreas; Krebs, Kristin; Schorb, Elisabeth; Hallermann, Kristiane; Superti-Furga, Andrea; Zieger, Barbara; Mä;rz, Winfried; Schmidt-Trucksäss, Arno; Winkler, Karl; Schwab, Karl Otfried; Doerfer, Jürgen; März, Winfried; Schmidt-Trucksäss, Arno
June 2007
European Journal of Pediatrics;Jun2007, Vol. 166 Issue 6, p541
Academic Journal
journal article
The intentions of our investigation were (1) to search for atherogenic risk factors and signs of incipient atherosclerosis in children and adolescents with type 1 diabetes (T1DM) in comparison to well-matched control subjects, (2) to evaluate risk factor associations with carotid intima media thickness (cIMT) in diabetic patients and control subjects, and (3) to acquire a better knowledge of early atherogenesis in children and adolescents with and without T1DM. 94 diabetic children (age median 12.3 years, HbA1c median 7.7%) and 40 non-diabetic controls (age median 12.3 years) were investigated. Mean cIMT was determined using high-resolution B-mode ultrasound with an automated contour identification procedure. Compared to controls, subjects with diabetes had significantly elevated cIMT (p = 0.041) and systolic BP (p = 0.007) but showed a less atherogenic lipid profile. Most markers of inflammation, endothelial function and fibrinolytic activity were higher in diabetic subjects than in controls. Multiple linear regression analysis revealed a significant relationship (r = 0.53, p = 0.036) between bilateral mean cIMT and diverse risk factors in patients with T1DM. Spearman rank correlation showed that diabetes duration (rho = 0.32, p = 0.029), systolic BP (rho = 0.32, p = 0.004), weight (rho = 0.257, p = 0.022), and height (rho = 0.265, p = 0.018) significantly correlated with bilateral mean cIMT in the 94 diabetic patients. In conclusion, in well-controlled type 1 diabetic children systolic BP may be of greater importance than dyslipidaemia in early atherogenesis. BMI, markers of sustained inflammation, endothelial dysfunction and fibrinolytic activity are increased in diabetic versus non-diabetic children but none of them correlates significantly with cIMT. Their prognostic value remains to be determined.


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