Journal
JOURNAL OF PEDIATRICS
Volume 139, Issue 5, Pages 724-728Publisher
MOSBY-ELSEVIER
DOI: 10.1067/mpd.2001.118571
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Objective: Our objective was to determine whether girls with the rare Turner 45, X/47, XXX mosaic karyotype are less severely affected than girls with 2 commoner karyotypes. Study design: We evaluated growth status, phenotype, and ovarian Function in 7 girls with 45, X/47, XXX mosaicism, age-matching each with 2 girls with 45, X and 1 with 45, X/46, Xi(X) (q10) karyotypes. Results: For the index, 45, X, and 45, X/46, Xi(X) (q10) groups, respectively, the median/mean height SD score at the start of growth hormone therapy/comparable age was -2.0 (-1.2), -2.3 (-2.4), and -2.6 (-2.6), cardiac anomalies were identified in 0 of 7, 4 of 14, and 1 of 7, renal abnormalities in 0 of 7, 4 of 14, and 3 of 7, middle ear problems in 2 of 7, 11 of 14, and 4 of 7, and special educational needs in 0 of 7, 3 of 14, and 1 of 7. Complete spontaneous puberty with menarche was seen in all but 1 girl older than 12 years in the index group compared with only 1 girl in the comparison groups. Ovarian tissue was identified in 6 of 7, 0 of 14, and 1 of 7 girls, and the mean follicle-stimulating hormone was 6, 25, and 21 U/L, respectively. Conclusion: Girls with 45, X/47, XXX karyotype are mildly affected, with good preservation of ovarian function. This result has important implications Cor prenatal counseling and the need for estrogen therapy at puberty.
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