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    Influence of hormonal therapy on growth rate and bone age progression in patients with Turner syndrome

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    Celem pracy by艂a ocena skuteczno艣ci leczenia hormonalnego u pacjentek z zespo艂em Turnera (TS) poprzez analiz臋 tempa wzrastania i progresji wieku kostnego w trakcie stosowania hormonu wzrostu (GH), oxandrolonu (Ox) i estrogen贸w (E). 62 pacjentki z TS w zale偶no艣ci od rodzaju zastosowanej terapii podzielono na pi臋膰 grup: grup臋 GH (n=11); GH+Ox (n=18); GH+Ox+E (n=7); Ox+E (n=6) oraz grup臋 0, kt贸r膮 stanowi艂y pacjentki nie leczone. Wzrost pacjentek wyra偶ano w warto艣ciach standaryzowanych obliczonych wed艂ug siatek dla TS (hSDST), a wiek kostny (BA) oceniano metod膮 Greulich-Pyle. Wyniki: 艢rednie warto艣ci ∆hSDST uzyskane w poszczeg贸lnych grupach w pierwszym i drugim roku terapii r贸偶ni艂y si臋 znamiennie, co wynika艂o z istotnie wy偶szych warto艣ci ∆hSDST w grupie GH+Ox. Na podstawie analizy regresji pomi臋dzy przyrostem wieku metrykalnego w trakcie terapii (∆CA) a przyrostem wieku kostnego w tym czasie (∆BA) uzyskano w poszczeg贸lnych grupach wsp贸艂czynniki kierunkowe α r贸wnania ∆BA=α x ∆CA, kt贸re r贸偶ni艂y si臋 istotnie, co wynik艂o ze znamiennie wy偶szych ich warto艣ci w grupie GH ni偶 w grupie 0 i GH+Ox. Tylko w grupie GH+Ox stwierdzono ujemn膮 korelacj臋 pomi臋dzy pocz膮tkowych CA a ∆BA. Wnioski: Wszystkie formy terapii przyczyni艂y si臋 do poprawy tempa wzrastania u naszych pacjentek, jednak najwi臋kszy przyrost wzrostu przy najmniejszej progresji wieku kostnego obserwowano w grupie GH+Ox.The efficacy of growth promoting hormonal therapy is assessed on the basis of growth rate as well as bone age progression until the patients reach their final height. The aim of our study was to investigate which hormonal therapy influences in most appropriate way height velocity and bone age progression in patients with Turner syndrome (TS) and to establish the optimal age to initiate treatment. Patients were divided into five groups according to the type of hormonal therapy:1) 11 patients treated with growth hormone (GH); 2) 18 patients treated with GH and oxandrolone (Ox); 3) 7 patients treated with GH, Ox and estrogens (E); 4) 6 patients treated with OX and E; and the control group (Group 0) of 62 untreated patients. The patients height was expressed in hSDS calculated on the basis of growth chart for patients with TS (hSDST). Bone age (BA) was assessed according to Greulich-Pyle method. Results: The mean values of ∆hSDST in the first and second year of therapy in individual groups were significantly different. The difference resulted from significantly higher value of ∆hSDST in group treated with GH+Ox. Analysis of regression between ∆CA and ∆BA revealed regression coefficients α of equation ∆BA= α x ∆CA: in group 0: 0.817; group GH: 1.233; group GH+Ox: 0.861; group GH+Ox+E: 0.997; group Ox+E: 1.141. There was significant difference between regression coefficients in studied groups. It resulted from significantly higher value of α in group treated with GH than in a group 0 and treated with GH+Ox. Only group treated with GH+Ox showed a significant negative correlation between baseline CA and ∆BA during the therapy. We can conclude that all regimens of hormonal therapy improved height in our patients but the highest increase of height during the therapy and the smallest progression of the bone age in the same time were observed in patients treated with GH+Ox
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