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Measured parental height in Turner syndrome—a valuable but underused diagnostic tool

Early diagnosis of Turner syndrome (TS) is necessary to facilitate appropriate management, including growth promotion. Not all girls with TS have overt short stature, and comparison with parental height (Ht) is needed for appropriate evaluation. We examined both the prevalence and diagnostic sensiti...

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Published in:European journal of pediatrics 2018-02, Vol.177 (2), p.171-179
Main Authors: Ouarezki, Yasmine, Cizmecioglu, Filiz Mine, Mansour, Chourouk, Jones, Jeremy Huw, Gault, Emma Jane, Mason, Avril, Donaldson, Malcolm D. C.
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container_title European journal of pediatrics
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creator Ouarezki, Yasmine
Cizmecioglu, Filiz Mine
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Donaldson, Malcolm D. C.
description Early diagnosis of Turner syndrome (TS) is necessary to facilitate appropriate management, including growth promotion. Not all girls with TS have overt short stature, and comparison with parental height (Ht) is needed for appropriate evaluation. We examined both the prevalence and diagnostic sensitivity of measured parental Ht in a dedicated TS clinic between 1989 and 2013. Lower end of parental target range (LTR) was calculated as mid-parental Ht (correction factor 12.5 cm minus 8.5 cm) and converted to standard deviation scores (SDS) using UK 1990 data, then compared with patient Ht SDS at first accurate measurement aged > 1 year. Information was available in 172 girls of whom 142 (82.6%) were short at first measurement. However, both parents had been measured in only 94 girls (54.6%). In 92 of these girls age at measurement was 6.93 ± 3.9 years, Ht SDS vs LTR SDS − 2.63 ± 0.94 vs − 1.77 ± 0.81 ( p  
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However, both parents had been measured in only 94 girls (54.6%). In 92 of these girls age at measurement was 6.93 ± 3.9 years, Ht SDS vs LTR SDS − 2.63 ± 0.94 vs − 1.77 ± 0.81 ( p  &lt; 0.001), Ht SDS &lt; LTR in 78/92 (85%). Eleven of the remaining 14 girls were &lt; 5 years, while karyotype was 45,X/46,XX in 2 and 45,X/47,XXX in 3. Conclusion : This study confirms the sensitivity of evaluating height status against parental height but shows that the latter is not being consistently measured. What is Known: • Girls with Turner syndrome are short in relation to parental heights, with untreated final height approximately 20 cm below female population mean . • Measured parental height is more accurate than reported height . What is New: • In a dedicated Turner clinic, there was 85% sensitivity when comparing patient height standard deviation score at first accurate measurement beyond 1 year of age with the lower end of the parental target range standard deviation . • However, measured height in both parents had been recorded in only 54.6% of the Turner girls attending the clinic. 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Lower end of parental target range (LTR) was calculated as mid-parental Ht (correction factor 12.5 cm minus 8.5 cm) and converted to standard deviation scores (SDS) using UK 1990 data, then compared with patient Ht SDS at first accurate measurement aged &gt; 1 year. Information was available in 172 girls of whom 142 (82.6%) were short at first measurement. However, both parents had been measured in only 94 girls (54.6%). In 92 of these girls age at measurement was 6.93 ± 3.9 years, Ht SDS vs LTR SDS − 2.63 ± 0.94 vs − 1.77 ± 0.81 ( p  &lt; 0.001), Ht SDS &lt; LTR in 78/92 (85%). Eleven of the remaining 14 girls were &lt; 5 years, while karyotype was 45,X/46,XX in 2 and 45,X/47,XXX in 3. Conclusion : This study confirms the sensitivity of evaluating height status against parental height but shows that the latter is not being consistently measured. 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source Springer Nature
subjects Adolescent
Birth Weight
Body Height
Child
Child, Preschool
Female
Genetic disorders
Humans
Infant
Infant, Newborn
Karyotype
Karyotyping
Medical diagnosis
Medicine
Medicine & Public Health
Original
Original Article
Parents
Pediatrics
Prevalence
Retrospective Studies
Sensitivity and Specificity
Standard deviation
Turner Syndrome - diagnosis
Turner Syndrome - epidemiology
Turner Syndrome - genetics
Turner's syndrome
title Measured parental height in Turner syndrome—a valuable but underused diagnostic tool
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