Growth and Development of Untreated Girls withSlowly Progressing Idiopathic Central Precocious or Early OnsetPuberty

Authors: M. Šnajderová;  D. Zemková;  M. Zounarová;  L. Teslík;  V. Lánská;  J. Hořejší
Authors‘ workplace: II. dětská klinika 2. LF UK a FN Motol, Praha, přednosta doc. MUDr. J. Vavřinec, DrSc., Gynekologicko-porodnická klinika 2. LF UK a FN Motol, Praha, přednosta prof. MUDr. J. Hořejší, DrSc., Oddělení statistiky, IKEM, Praha, ředitel MUDr. K. Filip, CSc.
Published in: Ceska Gynekol 2002; (1): 24-28


To analyse growth and development of girls with slowly progressive idiopathic precocious or early puberty.Design: Long-term open clinical study.Setting: Department of Obstetrics and Gynaecology, Second Faculty of Medicine, Charles University, Prague.Methods: In 20 untreated girls with slowly progressive puberty starting at 6–9 years neurogenicaetiology was excluded. During follow-up period 4.7 ± 2.2 (2–8,5) years (mean ± SD; range), sexualdevelopment (Tanner criteria), age at menarche, menstrual cycle and auxological parameterswere evaluated.Results: 13 girls reached menarche at 11.1 ± 0.9 years (3.7 ± 1.1 years after the onset of puberty),earlier than in their mothers (12.9 ± 1.1 years) and Czech standards (P < 0.05). Menstrual cycle 28(24–29) days was regular in all 6 girls with gynaecological age > 2 years. In one girl microprolactinoma was diagnosed, therapy with bromocryptine started at the age 14.7 years (3.5 years aftermenarche). At the onset of follow-up, bone age (TW20) advancement was 1.8 ± 1.4 years above thechronologic age. Initial prediction of final height (graphic method) was 162.3 ± 5.5 cm vs finalprediction 163.7 ± 5.1 cm. Final height 162.2 ± 5.7 cm achieved 7 girls vs target height 163.6 ± 5.2cm (NS).Conclusion: In untreated girls, menarche occurred later after the first signs of puberty than innormal population, menstrual cycle was regular. Height potential was preserved, final heightcorresponded with their target height. Not all girls with early and slowly progressive pubertyshould be treated. Therapy is necessary in organic aetiology, rapid progressive precocious puberty and impaired growth prognosis.

Key words:
precocious puberty, untreated girls, growth, sexual development, final height

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Paediatric gynaecology Gynaecology and obstetrics Reproduction medicine
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