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Pediatr Neurol. 2007 Dec;37(6):411-6.

Bone mineral density in angelman syndrome.

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  • 1Clinic of Child Neuropsychiatry, Second University of Naples, Naples, Italy. giangennaro.coppola@unina2.it

Abstract

Our aim was to evaluate bone mineral densitometry in patients with Angelman syndrome with or without antiepileptic therapy. Eighteen patients (9 females, 9 males), aged 4.0-24.3 years (mean age, 10.1 years), and two control groups consisting of 18 epileptic and 24 healthy patients, underwent dual-energy X-ray absorptiometry at the lumbar spine (L(1)-L(4)), and z score was evaluated for each patient; the t score was considered for patients aged > or = 18 years. Abnormal bone mineral density was present in 8/18 (44.5%) of patients with Angelman syndrome, in 7/18 (38.9%) of the epileptic group, and in none of the healthy controls. Furthermore, a significant difference regarding mean age of patients (6 versus 15 years, P = 0.008, by Fisher exact test), and mean length of drug treatment (3.5 versus 11.1 years, P = 0.005 by Fisher exact test), appeared in the group with Angelman syndrome. Most of these patients (94.4%) were receiving antiepileptic drugs, mainly valproic acid, for many years. In conclusion, our study revealed osteopenia in almost half the children and young patients with Angelman syndrome. Dual-energy X-ray absorptiometry should be performed in all patients with Angelman syndrome, particularly if they are treated with antiepileptic drugs.

PMID:
18021922
[PubMed - indexed for MEDLINE]
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