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目的探讨血管内皮细胞抗体(AECA)检测对川崎病(KD)患儿诊断及预后评价。方法2007年8月至2008年5月在广州市儿童医院住院的5岁以下KD患儿55例,采用以人脐静脉内皮细胞和猴骨骼肌为基质的间接免疫荧光技术检测55例急性期KD患儿和43例对照组(发热对照23例,健康对照20名)血清中AECA,并通过比较AECA阴性和阳性组相应的实验室、临床指标,初步评估AECA对KD早期诊断、预后转归的临床应用价值。结果KD患儿中AECA阳性率为40.0%,明显高于健康对照组(5.0%,P=0.004),但与发热对照组差异无统计学意义(17.4%,P=0.053);AECA对KD诊断的灵敏度为40.0%,特异性为88.4%,阳性预测值与阴性预测值则分别为80.0%、53.5%,准确率为60.4%。抗中性粒细胞浆抗体(ANCA)、蛋白酶3抗体(抗-PR3)阳性KD患儿中AECA阳性率显著高于阴性者(P值分别为0.013、0.034)。AECA阳性组与阴性患儿组临床指标、实验室指标差异无统计学意义。AECA阳性组冠状动脉瘤发生率高于阴性组(P<0.05),发生动脉瘤的相对危险度为6.67(95%CI1.2～36.1)。结论...

Clinical significance of anti-endothelial cell antibodies in children with Kawasaki disease

Objective To investigate the clinical significance of anti-endothelial cell antibodies (AECA) in Chinese children with Kawasaki disease (KD). Methods By indirect immunofluorenscence assay based on the substrates of human umbilical vein endothelial cells and monkey skeletal muscle sections, AECA was detected in sera from 55 KD children at acute phase and 43 controls (including 23 inpatients suffering fever and 20 healthy kids). Clinical characteristics and laboratory parameters were compared between AECA neg...