Value of basal luteinizing hormone level combined with uterine volume measurement in the early diagnosis of central precocious puberty in girls with different Tanner stages

WANG Wei; CAO Niu-Niu; XIAO Ya; WANG Yan; WANG Yi-Fan; SUN Jun

doi:10.7499/j.issn.1008-8830.2208204

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Chinese Journal of Contemporary Pediatrics ›› 2023, Vol. 25 ›› Issue (2) : 159-165. DOI: 10.7499/j.issn.1008-8830.2208204

CLINICAL RESEARCH

Value of basal luteinizing hormone level combined with uterine volume measurement in the early diagnosis of central precocious puberty in girls with different Tanner stages

WANG Wei, CAO Niu-Niu, XIAO Ya, WANG Yan, WANG Yi-Fan, SUN Jun

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Abstract

Objective To study the value of basal luteinizing hormone (LH) level combined with uterine volume measurement in the early diagnosis of central precocious puberty (CPP) in girls with different Tanner stages. Methods A retrospective analysis was performed on the girls who presented with breast development before the age of 8 years and attended the Third Affiliated Hospital of Zhengzhou University from January 2017 to September 2022. According to the results of gonadotropin-releasing hormone (GnRH) agonist test, the girls with peak LH ≥5.0 IU/L and peak LH/follicle stimulating hormone ≥0.6 were enrolled as the positive group, and the other girls were enrolled as the negative group. The two groups were compared in terms of the basal LH level and uterine volume. The receiver operating characteristic (ROC) curve was used to analyze their value in the early diagnosis of CPP. Results For the girls with Tanner B2 and B3 stages, the positive group had significantly higher basal LH level and uterine volume than the negative group (P<0.05). The basal LH level had an optimal cut-off value of 0.325 IU/L and 0.505 IU/L respectively in the diagnosis of Tanner stage B2/B3 CPP, while uterine volume had an optimal cut-off value of 1.639 mL and 2.158 mL respectively. Basal LH level combined with uterine volume measurement had a significantly larger area under the ROC curve than uterine volume measurement alone (P<0.001), but with no significant difference compared with that of basal LH level measurement alone (P>0.05). Conclusions Basal LH level combined with uterine volume measurement is valuable in the early diagnosis of CPP in girls with different Tanner stages, which provides a basis and guiding significance for clinical diagnosis of CPP.

Key words

Central precocious puberty / Tanner stage / Luteinizing hormone / Uterine volume / Girl

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WANG Wei, CAO Niu-Niu, XIAO Ya, WANG Yan, WANG Yi-Fan, SUN Jun. Value of basal luteinizing hormone level combined with uterine volume measurement in the early diagnosis of central precocious puberty in girls with different Tanner stages[J]. Chinese Journal of Contemporary Pediatrics. 2023, 25(2): 159-165 https://doi.org/10.7499/j.issn.1008-8830.2208204

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