反复呼吸道感染(RRI)是儿童的常见病、多发病,发病机制复杂,其中微量元素的变化会造成反复呼吸道感染。1999年至2001年我们对100例反复呼吸道感染患儿测定了血清钙(Ca)、镁(Mg)、锌(Zn)、铜(Cu)、铁(Fe)的含量,并与正常小儿比较,报告如下。 对象与方法 1.一般资料:本组100例,均为因反复呼吸道感染来我院儿科就诊者,男56例,女44例;年龄1-3岁者12例,4-6岁者58例,7-12岁者30例;均符合RRI诊断标准,即 Recurrent respiratory tract infections (RRI) is a common disease in children, frequently-occurring disease, the pathogenesis is complex, in which changes in trace elements can cause recurrent respiratory tract infections. From 1999 to 2001, we measured the levels of serum Ca, Mg, Zn, Cu and Fe in 100 children with recurrent respiratory tract infection. Compared with normal children, The report is as follows. Subjects and methods 1. General information: The group of 100 patients were due to recurrent respiratory tract infection to our hospital pediatric patients, 56 males and 44 females; aged 1-3 years in 12 cases, 58 cases of 4-6 years of age , 30 patients aged 7-12 years; all meet the RRI diagnostic criteria, that is