Mendizábal S, Simón J, Navarro C, Zamora I, Anaya F, Lurbe A
An Esp Pediatr. 1980 Nov;13(11):985-90.
To determine the incidence of renal involvement in Schönlein-Henoch syndrome, authors enrolled in a prospective study all children admitted with this diagnoses from 1971 through 1978. They followed-up 112 patients, which represented the 2 per one thousand of the total hospital pediatric admission in the same period; 22 patients (19.6%) developed renal involvement. After two years of follow-up they observe one patient with progressive renal failure, four with minor urinary abnormalities and 17 asymptomatics. The single patient with renal failure represents the 4.5% of the patients with Schönlein-Henoch nephropathy and the 0.9% of the total affected with this syndrome.
为确定过敏性紫癜性肾炎的发病率，作者开展了一项前瞻性研究，纳入了1971年至1978年间因该诊断入院的所有儿童。他们对112例患者进行了随访，这些患者占同期医院儿科总入院人数的千分之二；22例患者（19.6%）出现了肾脏受累。经过两年的随访，他们观察到1例进行性肾衰竭患者、4例轻度泌尿系统异常患者和17例无症状患者。那例肾衰竭患者占过敏性紫癜性肾病患者的4.5%，占该综合征总受累患者的0.9%。
