소아에서 연쇄상 구균 감염 후 급성 사구체 신염의 임상양상의 변화

Purpose : Several studies have reported the recent increase in the incidence of acute poststreptococcal glomerulonephritis(APSGN). The objective of this study is to see changes of clinical findings/manifwstation in children with APSGN. Methods : Medical records of 63 children who were diagnosed with APSGN in the deparment of Pediatrics, Kyungpook National University Hospital, between January 1992 and December 2006 were reviewed retrospectively. We analyzed various clinical characteristics such as age, sex, degrees of proteinuria, degrees of hematuria, and presence or absence of histories of systemic antibiotic use in children with APSGN, and compared the children with APSGN who were diagnosed between 1992 and 2000 to those who were diagnosed between 2001 and 2006. Results : Age of the patients ranged from 2-14 years(median 7.11 years) at the time of disease onset. Study patients consisted of 41 boys and 22 girls. APSGN followed infection of the throat in 87% of cases. Patient developed an acute nephritic syndrome 12 days after an antecedent streptococcal pharyngitis. Forty patients presented with gross hematuria. Fortyone patients had hypertension at the time of diagnosis. Hypertension disappeared within 7.8$\pm$8.2 days, gross hematuria within 11.3$\pm$17.2 days and microscopic hematuria within 3.5$\pm$3.9 months from the disease onset. Patients in 2001-2006 had significantly higher increase of antistreptolysin O(ASO) titer. However, no significant differences in clinical characteristics were observed. Age, sex, severity of proteinuria, gross or microscopic hematuria, antibiotic therapy did not affect the clinical manifestations of glomerulonephritis. In other words, hypertension, duration of hematuria, recovery of serum C3 level are not different between the two time periods. Conclusion : Our data indicates that patients in 2001-2006 had significantly higher level of ASO titer. However, they did not show significant clinical differences. To evaluate the causes of the resurgence of APSGN, a national epidemic is needed. 목 적 : 최근 연쇄상 구균 감염 후 급성 사구체 신염(APSGN)의 빈도가 증가됨이 보고되고 있다. 본 연구는 최근 15년간 APSGN으로 진단된 환아의 임상양상의 변화를 알아보기 위해 시행되었다. 방 법 : 1992년 1월부터 2006년 12월까지 경북대병원 소아청소년과에서 APSGN으로 진단받은 63례를 대상으로 하여 진료 기록을 후향적으로 조사하였다. 2000년을 기준으로 1992-2000년에서 발병한 33례와 2001-2006년에 발생한 30례로 구분하여 임상 양상의 차이를 비교하였다. 그리고 나이, 성별, 단백뇨 정도, 육안적 혈뇨 유무, 항생제 사용 여부 등으로 구분하여 임상 양상을 서로 비교하였다. 결 과 : 대상 환자 63명 중 남자는 41명, 여자는 22명이었고 발병 당시 연령은 평균 7년 11개월이었다. 전체의 87%에서 인후염이 선행하였고 평균 12일 후 급성 사