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Journal of Pediatric Endocrinology and Metabolism

Editor-in-Chief: Kiess, Wieland

Editorial Board Member: Darendeliler, Feyza / Gustafsson, Jan / Luo, Feihong / Mericq, Veronica / Lanes M. D., Roberto / Battelino, Tadej / Buyukgebiz, Atilla / Cassorla, Fernando / Chrousos, George P. / Cutfield, Wayne / Fideleff, Hugo L. / Hershkovitz, Eli / LaFranchi, Stephen H. / Mohn, Angelika / Root, Allen W. / Rosenfeld, Ron G. / Wabitsch, Martin / Werther, George / Zadik, Zvi

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Is the growth outcome of children with idiopathic short stature and isolated growth hormone deficiency following treatment with growth hormone and a luteinizing hormone-releasing hormone agonist superior to that obtained by GH alone?

1, a / Laura González2, a / Peter Gunczler2, a / Roberto Lanes2, a

1Instituto Venezolano de los Seguros Sociales Hospital, Hospital Dr. Patrocinio Peñuela, San Cristóbal, Venezuela

2Hospital de Clínicas Caracas, Caracas, Venezuela

aAll of the authors contributed equally to this work.

Corresponding author: Ana Colmenares, MD, Instituto Venezolano de los Seguros Sociales. Hospital Dr. Patrocinio Pe ñ uela Ruiz, Tachira, Venezuela 5001, Phone: +58 276 3563052, +58 414 0774242

Citation Information: Journal of Pediatric Endocrinology and Metabolism. Volume 25, Issue 7-8, Pages 651–657, ISSN (Online) 2191-0251, ISSN (Print) 0334-018X, DOI: 10.1515/jpem-2012-0182, July 2012

Publication History:
Received:
2012-06-10
Accepted:
2012-06-23
Published Online:
2012-07-26

Abstract

Aim: The aim of this study was to evaluate the effect of combined therapy with growth hormone (GH) and luteinizing hormone-releasing hormone agonist (LHRHa) on the near-final height (NFH) of children with idiopathic short stature (ISS) and growth hormone deficiency (GHD) in early puberty.

Methods: A retrospective analysis of 20 patients with ISS and 9 patients with GHD treated with combined therapy was undertaken. Twelve children with ISS and ten with GHD, treated with GH alone, served as controls. Patients were matched at baseline for chronological age, bone age, height standard deviation score (SDS), and pubertal development.

Results: Patients with ISS or GHD treated with combined therapy improved both their predicted adult height (PAH) at 2 years of therapy (ISS, p<0.001; GHD, p=0.03) and their NFH (ISS, p<0.05; GHD, p=0.05). Treatment with combined therapy did not generate additional benefits on the PAH after 2 years of therapy (ISS children, an increase of 7.9±4.9 cm with combined therapy vs. 7.3±6.0 cm with GH; GHD children, an increase of 6.8±7.8 cm with combined therapy vs. 5±5.9 cm with GH). The total height gain SDS was higher in patients treated with GH alone compared with those with combined therapy, but the difference was not significant (ISS children, a gain of 2.4 SDS with GH vs. 0.8 SDS with combined therapy; GHD children, a gain of 1.8 SDS with GH vs. 0.6 SDS with combined therapy).

Conclusions: Although 2 years of combined treatment with GH and LHRHa improved the PAH and the NFH of ISS and GHD patients in early puberty, this improvement was not significant compared with that observed in similar subjects treated with GH alone.

Keywords: growth hormone (GH); growth hormone deficiency (GHD); idiopathic short stature (ISS); luteinizing hormone-releasing hormone agonist (LHRHa); near-final height

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