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目的探讨儿童螨性呼吸道过敏性疾病中眼结膜激发试验(CPT)的应用的价值。方法对我院自2008年10月至2010年3月初步确诊的变应性鼻炎患儿61例,经过血清特异性IgE检测筛选出螨变应原阳性50例患者,经安脱达屋尘螨进行脱敏治疗前后,进行CPT检测。结果筛选出的50例患者(皮肤点刺在+++以上)检测阳性率为100%,CPT检测的敏感性为91.5%,特异性为92.3%,有效性为91.4%。其引发的症状一般较轻微,仅限于眼部和鼻部。结论 CPT是一种诊断呼吸变态反应病因的简易方法,其具有较高的特异性和敏感性,值得临床推广。
Objective To investigate the value of ocular conjunctival challenge test (CPT) in children with mite respiratory allergy. Methods Totally 61 children with allergic rhinitis diagnosed initially in our hospital from October 2008 to March 2010 were screened out 50 patients with mite allergen positive by serum specific IgE test. Before and after desensitization treatment, CPT test. Results The positive rate was 100% in 50 patients (skin puncture above +++). The sensitivity and specificity of CPT were 91.5%, 92.3% and 91.4% respectively. The symptoms are usually mild, limited to the eyes and nose. Conclusion CPT is a simple method to diagnose the etiology of respiratory allergy. It has high specificity and sensitivity and is worthy of clinical promotion.