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      Height Gain in Ullrich-Turner Syndrome after Early and Late Growth Hormone Treatment Start: Results from a Large Retrospective German Study and Potential Basis for an Individualized Treatment Approach

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          Abstract

          Background: Ullrich-Turner syndrome (UTS) girls often present with short stature in adolescence to the endocrinologist when the efficacy of growth hormone (GH) to improve growth remains unknown and parameters to estimate individual GH responsiveness have yet to be determined. Objective: Retrospective evaluation of adult height (AH) and predicted adult height at GH start (descriptive model of Ranke, Model PredAH) in early and late GH-treated German UTS patients. Subjects/Methods: 313 patients treated with GH, early [chronological age (CA) at GH start <12 years, n = 259] or late (CA at GH start ≥12 years, n = 54) who reached AH were selected from KIGS (Pfizer International Growth Database). Results: AH (152.5 ± 5.9 vs. 151.1 ± 5.4 cm, p = n.s.) after GH treatment for 7.5 ± 2.12 years (GH start early) and for 5.2 ± 1.2 years (GH start late) were similar (p = n.s.) as Model PredAH (155.7 ± 4.8 vs. 154.7 ± 4.8 cm; p = n.s.) but higher (p < 0.001) than projected adult height (Ranke, ProjAH; 148.2 ± 5.5 vs. 145.2 ± 6.7 cm; p = 0.001). Total height gain over ProjAH was 4.3 ± 4.6 cm (GH start early) and 5.8 ± 4.7 cm (GH start late, p = 0.021), respectively. Conclusions: GH may improve AH in UTS patients even when started late. The individual growth response could be estimated by the descriptive Model PredAH independent of age at treatment start.

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          Tables for predicting adult height from skeletal age: revised for use with the Greulich-Pyle hand standards.

          Nancy Bayley, Samuel R. Pinneau (1952)
          Article 0 comments Cited 189 times – based on 0 reviews     Review now
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            Validated multivariate models predicting the growth response to GH treatment in individual short children with a broad range in GH secretion capacities.

            A. Nierop, Michael B. Svensson, B Kriström … (2000)
            The aim of the study was to develop and validate models that could predict the growth responses to GH therapy of individual children. Models for prediction of the initial one and 2-y growth response were constructed from a cohort of 269 prepubertal children (Model group) with isolated GH deficiency or idiopathic short stature, using a nonlinear multivariate data fitting technique. Five sets of clinical information were used. The "Basic model" was created using auxological data from the year before the start of GH treatment and parental heights. In addition to Basic model data, the other four models included growth data from the first 2 y of life, or IGF-I, or GH secretion estimated during a provocation test (AITT) or a spontaneous GH secretion profile. The performance of the models was validated by calculating the differences between predicted and observed growth responses in 149 new GH treated children (Validation group) who fulfilled the inclusion criteria used in the original cohort. The SD of these differences (SD(res)) in the validation group was compared with the SD(res) for the model group. For the 1st y, the SD(res) for the Basic model was 0.28 SDscores. The lowest SD(res) (0.19 SDscores), giving the most narrow prediction interval, was achieved adding the 24h GH profile and data on growth from the first 2 y of life to the Basic model. The models presented permit estimation of GH responsiveness in children over a broad range in GH secretion, and with an accuracy of the models substantially better than when using maximal GH response during an provocation test. The predicted individual growth response, calculated using a computer program, can serve as a guide for evidence-based decisions when selecting children to GH treatment.
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              Trends in age at diagnosis of Turner syndrome.

              M. Maes, M. Thomas, S C Heinrichs … (2005)
              The age at diagnosis of 242 girls with Turner syndrome (TS) treated in Belgium with growth hormone between 1991 and 2002 was evaluated. The median (range) age at diagnosis was 6.6 (0-18.3) years. Patients with 45,X karyotype were diagnosed earlier than patients with other karyotypes. Compared to a previous survey, performed on 100 patients 12 years earlier, more patients were diagnosed during infancy and childhood, and less during adolescence. However, in 22% of the girls the diagnosis was made after the age of 12 years; these girls showed the largest height deficit. As early diagnosis has several potential advantages we recommend that a cytogenetic analysis should be considered in all girls with unexplained short stature with height below -2 SD of the mean for age or below the parent specific lower limit of height.
              Article 0 comments Cited 28 times – based on 0 reviews     Review now
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                Author and article information

                Journal
                Journal ID (publisher-id): HRP
                Journal ID (nlm-ta): Horm Res Paediatr
                Journal ID (doi): 10.1159/issn.1663-2818
                Title: Hormone Research in Paediatrics
                Publisher: S. Karger AG
                ISSN (Print): 1663-2818
                ISSN (Electronic): 1663-2826
                Publication date Subscription-year: 2013
                Publication date (Print): November 2013
                Publication date (Electronic): 05 November 2013
                Volume: 80
                Issue: 5
                Pages: 356-362
                Affiliations
                aHospital for Children and Adolescents, University of Heidelberg, Heidelberg, bHospital for Children and Adolescents, University of Erlangen, Erlangen, cDepartment of Pediatric Endocrinology and Diabetology, University Children's Hospital, University of Duisburg-Essen, Essen, and dChildren's Hospital, University of Tuebingen, Tuebingen, Germany
                Author notes
                *Markus Bettendorf, MD, Division of Pediatric Endocrinology and Diabetes, Children's Hospital, University of Heidelberg, Im Neuenheimer Feld 430, DE-69120 Heidelberg (Germany), E-Mail markus.bettendorf@med.uni-heidelberg.de
                Article
                Publisher ID: 356045 Other ID: Horm Res Paediatr 2013;80:356-362
                DOI: 10.1159/000356045
                PubMed ID: 24217296
                SO-VID: 8e5c53b2-4405-44ff-a57a-454538a298f1
                Copyright © © 2013 S. Karger AG, Basel
                License:

                Copyright: All rights reserved. No part of this publication may be translated into other languages, reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying, recording, microcopying, or by any information storage and retrieval system, without permission in writing from the publisher. Drug Dosage: The authors and the publisher have exerted every effort to ensure that drug selection and dosage set forth in this text are in accord with current recommendations and practice at the time of publication. However, in view of ongoing research, changes in government regulations, and the constant flow of information relating to drug therapy and drug reactions, the reader is urged to check the package insert for each drug for any changes in indications and dosage and for added warnings and precautions. This is particularly important when the recommended agent is a new and/or infrequently employed drug. Disclaimer: The statements, opinions and data contained in this publication are solely those of the individual authors and contributors and not of the publishers and the editor(s). The appearance of advertisements or/and product references in the publication is not a warranty, endorsement, or approval of the products or services advertised or of their effectiveness, quality or safety. The publisher and the editor(s) disclaim responsibility for any injury to persons or property resulting from any ideas, methods, instructions or products referred to in the content or advertisements.

                History
                Date received : 23 July 2013
                Date accepted : 24 September 2013
                Page count
                Figures: 2, Tables: 3, Pages: 7
                Categories
                Subject: Original Paper

                ScienceOpen disciplines: Endocrinology & Diabetes,Neurology,Nutrition & Dietetics,Sexual medicine,Internal medicine,Pharmacology & Pharmaceutical medicine
                Keywords: Growth hormone treatment,Height prediction,Adult height, Ullrich-Turner syndrome,Late treatment start
                Data availability:
                ScienceOpen disciplines: Endocrinology & Diabetes, Neurology, Nutrition & Dietetics, Sexual medicine, Internal medicine, Pharmacology & Pharmaceutical medicine
                Keywords: Growth hormone treatment, Height prediction, Adult height, Ullrich-Turner syndrome, Late treatment start

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