ABSTRACT
OBJECTIVE: To research an appropriate estrogen therapy for in the pubertal development in Turner syndrome(TS)achievedbyestradiolvalerate.METHODS: In 57 TS girls of no spontaneous puberty or puberty arrest,we retrospectively studied pubertalstageanduterinedimensionduringtheestrogenreplacementtherapy.Datafrompatientrecordswascollected,described thepubertaldevelopingprocedure,and compared in groups which grouped by estrogen dosage to detect an appropriate dosage andthatcanleadabetterbreastanduterinedevelopment.RESULTS: The median age at start of puberty induction was 15.00 years,witharangeof11.5-21.0 years.(1)Breast development:Breast development to Tanner stage B2 was achieved in 0.29(0.25-0.33)years,stage B3 in 0.75(0.46,1.08)years,stage B4 in 2.20(0.92,3.08)years and B5 in 3.67(1.71,4.44)years.(2)Uterine development:The uterine volume and length in TS girls before treatment was 0.51(0.14,0.86)ml and 1.89(1.23,2.18)cm. We groupedthepatientsofTannerstageB2 ingroupsofestrogendosage≤0.5 mg/dand>0.5 mg/d and the uterine dimension and weightshowednodifference.Whenthepatientsweregroupedasgroupsofdosage<1.0 mg/d and group of dosage≥1.0 mg/d in stageB3,the uterine indexes in lower dosage group were less than group with larger dosage. When they were grouped as groups ofdosage<1.5 mg/d and ≥1.5 mg/d,the uterine volume 6.96(3.15-11.00)ml in lower dosage group was smaller than that in group withlargerdosage.CONCLUSION: During estrogen treatment in TS girls,normal breast development can be achieved. In a clinical setting,the uterine volume and length under pubertal induction developed properly with the breast stages progressing. when the breastdevelopedtostageB2,the uterine development was more dependable on estrogen. We recommend a low daily beginning estrogendosageuntilstageB2,which can be increased gradually after B2 to speed up the uterine development.