ESPE Abstracts (2019) 92 P2-11

Long-term Prednisone versus Hydrocortisone Treatment in Children with Classic Congenital Adrenal Hyperplasia (CAH): A Controlled Study

Ashraf Tawfik Soliman1,2, Shayma Elsayed Abdel Meguid Ahmed 1, Magdy Ramadan 1, Ahmed Elawwa1, Ahmed Mohamed Said Abugabal 1, Mohamed Hassan Ahmed Emam 1


1University of Alexandria, Alexandria, Egypt. 2Hamad General Hospital, Doha, Qatar


Background: Debate still exists about the safety of long-term use of prednisone (PD) versus hydrocortisone (HC) for treating children with CAH. Relatively slight supraphysiologic levels may be enough to blunt growth velocity, increase weight gain.

Objectives of the study: We evaluated the anthropometric and biochemical effects of long-term PD versus HC treatment in children with CAH-21OHD.

Patients and Methods: We studied 30 children with classic CAH (19 females and 11 males), 22 were on PD (n= 22) or 8 were on HC treatment, since their first diagnosis. Clinical data included age, gender, duration of therapy, dose of HC and or equivalent dose of HC in the PD group, blood pressure, height (Ht) and weight. Ht-SDS and BMI were also calculated. Biochemical data included measurement of 17- OH progesterone, cholesterol, triglycerides (TG), HDL, LDL, fasting glucose, and insulin concentrations. HOMA-IR was calculated. Carotid intima-media thickness (CIMT) was measured using high-resolution B-mode ultrasonography. Thirty normal age-matched children were used as controls for the anthropometric and CIMT data.

Results: The age of children and duration of treatment did not differ among the two treatment groups. After a mean of 6 years of treatment, the Ht-SDS and BMI did not differ between the three groups of children. The equivalent hydrocortisone dose of children on prednisone was significantly higher than the dose for the hydrocortisone group. Both systolic and diastolic blood pressures (BP) of children on prednisone was slightly higher compared to those on HC group. However, the BP of the 2 treatment groups was not different compared to control children. Fasting blood glucose, HOMA-IR, plasma TG, HDL, and cholesterol did not differ among the two treatment groups. LDL levels were significantly higher in the PD group versus the HC group. The CIMTdid not differ among the two treatment groups but was significantly higher in the treated groups versus controls. There was a significant linear correlation between BMI-SDS and CIMT ( r= 0.37, P = 0.047).

Conclusions: Children with CAH-21OHD who were kept on PD therapy for 6.4 ± 2.7 years have maintained a normal linear growth. No difference in BMI, HOMA-IR, or CIMT was detected among the two treated groups. The efficiency, safety and convenience of a single daily dose of PD could be a good and relatively safe alternative to HC for the continuing treatment of CAH children. More prospective studies across childhood and adolescence are necessary to draw definitive conclusions.

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