Clinical Features and Natural Course of Benign Transient Hyperphosphatasemia in Children

D. S. Oh, Jae Joon Han, H. Yang, J. Chang, J. Ko, J. Choi, J. Seo
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引用次数: 0

Abstract

목 적: 한국인 소아에서 양성 일과성 고인산분해효소 혈증(Benign transient hyperphosphatasemia, BTH)의 임상적 특징 및 자연 경과를 살펴보고자 하였다. 방 법: 2006년 6월부터 2007년 7월까지 분당서울대학교병원 소아과를 내원한 환아 중 Kraut 등의 진단기준에 따라 BTH로 진단된 17명의 의무기록과 검사결과를 후향적으로 분석하였다. 결 과: 총 17명의 환아 중 남아가 6명, 여아가 11명이었으며, 연령은 평균 26.9 ${\pm}$ 13.8개월(범위: 9~49개월)이었다. 동반된 질환으로는 감염성 질환이 52.9%로 가장 많았고, 계절적으로 9월에서 12월 사이에 더 높은 발생률을 보였다. 첫 내원 시 측정한 혈청 ALP는 평균 2500.2 ${\pm}$ 1165.1 U/L이었고, 모든 환아에서 7주 내에 혈청 ALP가 정상 또는 정상 상한치의 두 배 이내로 감소하였다. ALP isoenzyme 검사를 시행한 7명의 환아 중 3명에서 간 분획과 골 분획의 증가가 있었고, 4명은 골분획의 증가만을 보였다. 결 론: 한국인 소아에서 BTH의 임상적 특징 및 경과를 이해함으로써 ALP 상승 소견을 보이는 영유아에서 불필요한 진단적 검사들을 지양하며 임상 경과의 관찰을 통해 ALP 활성도의 정상화 여부를 확인하도록 하여야 한다. 【Purpose: This study was conducted to analyze the clinical manifestation and natural course of benign transient hyperphosphatasemia (BTH) in children. Methods: A total of 17 children diagnosed with BTH between June 2006 and July 2007, were included in this study. Clinical records and laboratory tests were analyzed retrospectively for all children. Results: The mean age of the patients was $26.9{\pm}13.8$ months (range: 9 to 49 months). Nine of the 17 BTH cases (52.9%) occurred in patients that had previously suffered from infectious diseases. While the patients were suffering from BTH, the mean serum level of alkaline phosphatase (ALP) was $2,500.2{\pm}1,165.1$ U/L, however, these elevated serum ALP levels normalized within 7 weeks of recovery in all cases. In addition, a seasonal peak in the onset of BTH was observed from September to December. Further, the measurement of ALP isoenzymes in 7 of the patients with BTH, revealed a marked elevation of bone fraction. Conclusion: It is important for pediatricians to understand the clinical manifestation and benign course of BTH to avoid unnecessary diagnostic evaluation in children showing a transient increase in ALP activities.】
儿童良性短暂性高磷酸血症的临床特点及自然病程
目的:了解韩国小儿良性一过性高磷酸分解酶血症(Benign transient hyperphosphatasemia, BTH)的临床特征及自然经过。方法:2006年6月至2007年7月,根据盆唐首尔大学医院小儿科患者Kraut等诊断标准,对被诊断为BTH的17人的医务记录和检查结果进行后向分析。结果:在17名患者中,男婴6名,女婴11名,平均年龄为26.9美元{\pm} 13.8个月(范围:9~49个月)。伴随疾病中感染性疾病最多,占52.9%,从季节上看,9月到12月的发病率更高。第一次来医院时测定的血清ALP平均为252.2美元{\pm} 1165.1 U/L,所有患者在7周内血清ALP减少到正常或正常上限的两倍以内。在进行ALP isoenzyme检查的7名患者中,3人有肝和骨的增加,4人只有骨的增加。结论:通过了解韩国儿童BTH的临床特征及经过,避免对出现ALP上升意见的婴幼儿进行不必要的诊断检查,通过观察临床过程,确认ALP活性是否正常。【Purpose: This study was conducted to analyze the clinical manifestation and natural course of benign transient hyperphosphatasemia (BTH) in children。Methods: A total of 17 children diagnosed with BTH between June 2006 and July 2007, were included in this study。Clinical records and laboratory tests were analyzed retrospectively for all children。Results: The mean age of The patients was $26.9{\pm}13.8$ months (range: 9 to 49 months)occurred in patients that had previously suffered from infectious diseases (52.9%)While the patients were suffering from BTH, the mean serum level of alkaline phosphatase (ALP) was $ 255.2 {\pm}1,165.1$ U/L, however,these elevated serum ALP levels normalized within 7 weeks of recovery in all casesIn addition a seasonal peak In the onset of BTH was observed from September to December。the measurement of ALP isoenzymes in 7 of the patients with BTH, revealed a marked elevation of bone fraction。conclusion:benign course of BTH to avoid unnecessary diagnostic evaluation in children showing a transient increase in ALPactivities。】
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