The effect of growth hormone treatment in short children born small for their gestational ages

만삭 부당경량아로 출생한 저신장증 환아에서의 성장호르몬 치료 효과

  • Seo, Joo Hee (Department of Pediatrics, College of Medicine, Yonsei University) ;
  • Kim, Duk Hee (Department of Pediatrics, College of Medicine, Yonsei University)
  • 서주희 (연세대학교 의과대학 소아과학교실) ;
  • 김덕희 (연세대학교 의과대학 소아과학교실)
  • Received : 2005.09.15
  • Accepted : 2005.10.25
  • Published : 2006.03.15

Abstract

Purpose : Growth hormone(GH) has been recognized as an effective treatment for short children born small for their gestational ages(SGA), and nowadays it has been widely used for the treatment of short children born SGA. The aim of this study is to assess the efficacy of GH treatment for the children born SGA. Methods : The study population was made of 40 short children born SGA with GH-treated(n=26) and untreated control group(n=14). In order to evaluate the effect of GH treatment, the changes in standard deviation scores(SDS) of the GH-treated group were compared to the changes in SDS before and after treatment from the control group in the same period. Results : There were no differences between the GH-treated group and the control group in gestational age, birth weight, chronological age, target height and the period of follow-up observation; however, the GH-treated group had lower height SDS($-3.3{\pm}0.9$) than the control group($-2.4{\pm}0.4$) before treatment(P<0.05). The GH-treated group had gained $1.2{\pm}1.0$ height SDS during GH treatment while the control group had gained $0.5{\pm}0.6$ height SDS. In the GH treatment group, HDL-cholesterol increased from $48.5{\pm}9.9mg/dL$ to $56.1{\pm}8.7mg/dL$(P<0.05) and LDL-cholesterol decreased from $88.1{\pm}23.3mg/dL$ to $76.4{\pm}19.4mg/dL$(P<0.05) after treatment. There were no changes in total cholesterol, triglyceride, free fatty acid and fasting blood sugar. IGF-I increased from $224.9{\pm}191.3{\mu}g/L$ to $443.2{\pm}152.5{\mu}g/L$(P<0.05) and IGFBP-3 also increased from $3.7{\pm}1.3mg/L$ to $5.6{\pm}1.2mg/L$(P<0.05). Conclusion : We conclude that growth hormone treatment is effective in the treatment of short children born SGA.

목 적 : 만삭 부당경량아로 출생하여, 2세까지 성장의 따라잡기가 이루어지지 않은 저신장증 환아들은 성인 신장치가 작을 가능성이 많으므로 성장호르몬의 치료가 필요하다. 본 연구의 목적은 만삭 부당경량아로 출생하여 5세가 지나서도 따라잡기 성장을 하지 못한 저신장증 상태의 환아에서 성장호르몬 치료효과를 평가하고자 하였다. 방 법 : 연구대상은 본원에서 저신장증으로 성장 호르몬 치료를 받은 환아중 만삭 부당경량아의 출생력이 있는 환아 26명을 대상으로 하였으며, 대조군은 만삭 부당경량아로 출생하였으며, 추적시 저신장이고 성장호르몬 치료를 받지 않은 환아 14명을 대상으로 하였다. 성장호르몬의 치료 효과를 평가하기 위해 성장호르몬 치료 전후의 신장 표준편차값 변화와 같은 기간내 대조군의 표준편차값 변화를 비교하였다. 결 과 : 환자군과 대조군 간에는 재태 주령, 출생체중, 나이, 최종 예측치 신장, 추적관찰 기간에 있어서는 차이가 없었으나, 치료 시작 전의 신장 표준편차값은 대상군이 $-3.3{\pm}0.9$, 대조군이 $-2.4{\pm}0.4$로 환자군이 의미 있게 작았다(P<0.05). 치료 전후 신장 표준편차값의 변화는 환자군이 $1.2{\pm}1.0$, 대조군이 $0.5{\pm}0.6$으로 성장호르몬 치료를 받은 환자군에서 신장의 변화값이 높게 나타났다(P<0.05). 성장호르몬 치료를 받은 환자군에서 지질검사를 포함한 생화학 검사는 치료 시작 전후를 비교하였을 때, HDL-콜레스테롤이 $48.5{\pm}9.9mg/dL$에서 $56.1{\pm}8.7mg/dL$로 증가하였으며(P<0.05), LDL-콜레스테롤은 $88.1{\pm}23.3mg/dL$에서 $76.4{\pm}19.4mg/dL$로 감소하였다(P<0.05). 총콜레스테롤과 중성지방, 유리 지방산 및 공복시 혈당은 의미있는 변화는 없었다. 또한 치료 전후의 인슐린양 성장 인자-I 농도는 $224.9{\pm}191.3{\mu}g/L$에서 $443.2{\pm}152.5{\mu}g/L$로 증가하였으며, 인슐린양 성장 인자 결합 단백-3 농도는 $3.7{\pm}1.3mg/L$에서 $5.6{\pm}1.2mg/L$으로 의미 있게 증가하였다(P<0.05). 결 론 : 성장호르몬 치료는 만삭 부당경량아로 출생한 환아들의 저신장증 치료에 효과적이고 안전한 방법으로 사료된다.

Keywords

References

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