Vascular and cardiac function in young adults with classical congenital adrenal hyperplasia

Abstract

Introduction: Patients with classical congenital adrenal hyperplasia (CAH) have increased cardiovascular risk, but the vascular and cardiac function during longitudinal corticoids replacement therapy is not known thoroughly.

Material and methods: Cross-sectional study of 19 Caucasian adults with CAH (age 23.7 ± 3.8 years; twelve males) compared to 20 healthy volunteers matched for origin, sex, age, and body mass index (BMI). All of the participants were assessed for flow mediated dilatation of the brachial artery (FMD), intima-media thickness of the common carotid artery (cIMT) and common femoral artery (fIMT), standard echocardiography, and global longitudinal left ventricular function using two-dimensional speckle-tracking echocardiography (LSTE).

Results: The patients with CAH, compared with controls, had decreased FMD (9.4 ± 3.9 vs. 19.8 ± 5.2; p < 0.01), and the difference was still significant after correction for potential confounders. cIMT and fIMT were higher in the CAH group at baseline (for cIMT 0.47 ± 0.4 mm vs. 0.40 ± 0.03 mm; p < 0.01, for fIMT 0.47 ± 0.05 mm vs. 0.41 ± 0.04 mm; p < 0.01) but not after correction for potential confounders. The CAH subjects, compared with controls, had normal or similar left ventricular (LV) ejection fraction and LV mass index. The mean absolute value of LSTE differed in the CAH patients compared with controls (–20.5% ± 1.2 vs. –22.5% ± 1.7; p < 0.01), but it was still within the normal range.

Conclusions: Young adults with CAH and glucocorticoid long-lasting treatment had impaired FMD, an insignificant increase of IMT, and subclinical changes in LV diastolic function in echocardiography.