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Journal of the Korean Pediatric Society 2003;46(9):889-892.
Risk Factors for the First-Year Relapse in Children with Nephrotic Syndrome
Hye Kyoung Shin, Ji Hee Kim, Kee Hwan Yoo, Young Sook Hong, Joo Won Lee, Soon Kyum Kim
Department of Pediatrics, College of Medicine, Korea University, Seoul, Korea
신증후군 환아에서 1년내 재발과 관련된 위험 요인
신혜경, 김지희, 유기환, 홍영숙, 이주원, 김순겸
고려대학교 의과대학 소아과학교실
Correspondence:  Kee Hwan Yoo,
Email: guroped@korea.ac.kr
Abstract
Purpose
: This study aimed to evaluate risk factors of the first year relapse in children with nephrotic syndrome(NS) without the need for biopsy.
Methods
: We reviewed, retrospectively, 78 children diagnosed with steroid responsive nephrotic syndrome between July 1997 and June 2002. Median years to follow up were 4.4 years(range : 1-5 years). We divided the patients into two groups(group I : primary responders with no relapse or with only two relapses in the first year after initial response; group II : initial steroid responders with three or more relapses within the first year). We retrospectively reviewed and compared variables - sex, onset age, serum albumin, serum cholesterol, 24 hours urinary protein, creatinine clearance(Ccr), presence of hematuria and hypertension(HTN), and days from initial attack to remission.
Results
: Of 78 patients(male : 61(78.2%), female : 17(21.8%), age range 1.1 years to 14 years, median 5.1?.0 years), 47(60.3%) were in group I and 31(39.7%) were in group II. There were no statistically significant differences in sex, serum albumin, serum cholesterol, 24 hours urinary protein, Ccr, presence of hematuria or HTN. The median age of onset showed no statistical difference between the two groups. However, if the patients are dividing into two groups according to the age of onset of three-years, patients theree yrs old or less fit into group II, as opposed to patients older than three yrs in age(63.2% vs. 32.2%, P<0.05). The days from initial attack to remission was longer in group II(12.9?.5 vs. 16.2?.1, P<0.05).
Conclusion
: We may conclude that the age of onset of three yrs old or less, and the longer time remission to initial steroid therapy, are risk factors of the first year relapse.
Key Words: Steroid responsive nephrotic syndrome, First year relapse, Risk factors


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