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J Pediatr. 1995 Nov;127(5):729-35.

Final height after long-term growth hormone treatment in Turner syndrome. European Study Group.

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  • 1Bureau of the Dutch Growth Foundation, University Hospital Leiden, The Netherlands.

Abstract

OBJECTIVES:

To study final height after long-term growth hormone (GH) treatment in girls with Turner syndrome (TS).

PATIENTS:

One hundred fifty three patients with TS, participating in five European trials, were included. They started GH treatment in 1987-1989 at an age of 10 years or older. Mean age at start of treatment ranged between 11.7 and 14.6 years among countries and mean bone age between 9.4 and 11.8 years. Fourteen girls were lost to follow-up, leaving 139 for analysis. Most girls have now attained final height (FH), defined as a linear growth velocity (GV) of 4 mm/yr or less, measured over at least 6 months (group 1, n = 56), or near-FH, defined as a GV of 5 to 9 mm/yr (group 2, n = 22). Sixty-one girls were still growing 10 mm/yr or more.

METHODS AND MAIN RESULTS:

At the last measurement, mean (SD) height was 150.7 (4.9) cm in group 1 and 148.5 (5.1) cm in group 2. The differences between FH and projected final height based on extrapolation of the initial height-standard deviation score on Turner syndrome reference values, were 2.9 (3.8) and 3.0 (3.3) cm, respectively. The mean gain over the Bayley-Pinneau prediction of FH was 3.3 (3.9) cm in both groups. No significant differences between countries were found. The range of gains over projected height (-4.7 to 12.1 cm) was large, and 25% of gains were 5 cm or more. Gain over initial projection was strongly related to initial growth delay and to growth response during the first 2 years of treatment. A logistic regression model is presented that predicts gain of more than 5 cm with a positive predictive value of 62% and a negative predictive value of 84%.

CONCLUSIONS:

Long-term GH treatment in girls with TS, starting treatment at a relatively advanced age ( > 10 years) resulted in a modest mean gain in FH of 3 cm, with wide interindividual variation.

PMID:
7472824
[PubMed - indexed for MEDLINE]
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