摘要
目的探讨以胃肠道症状为主要表现的婴儿牛奶蛋白过敏(CMPA)的流行病学特点及临床特征。方法回顾性分析280例临床诊断为以胃肠道症状为主要表现的CMPA住院婴儿的临床资料。结果 280例CMPA患儿中,6月龄以内患儿占72.5%(203例)。表现为腹泻171例(61.1%),血便149例(53.2%),呕吐71例(25.4%),湿疹57例(20.4%),营养不良42例(15%),便秘13例(4.6%);轻-中度CMPA258例(92.1%),重度CMPA 22例(7.9%)。重度CMPA组营养不良发生率(50.0%)高于轻-中度组(12.0%),血便发生率(22.7%)则低于轻-中度组(55.8%),差异均有统计学意义。母乳喂养CMPA组营养不良发生率(10.3%vs 24.6%)及重度CMPA患儿比例(4.4%vs 18.0%)均低于人工喂养CMPA组,而人工喂养CMPA组的血便发生率(37.7%)则低于母乳喂养CMPA组(56.6%)及混合喂养CMPA组(59.0%),差异均有统计学意义。结论以胃肠道症状为主要表现的CMPA多发生于6月龄以内婴儿,以腹泻、血便起病多见,病情大多为轻-中度。人工喂养比母乳喂养更易导致重度CMPA,更易引起营养不良。
Objective To investigate the epidemiological and clinical features of cow's milk protein allergy(CMPA)in infants presenting mainly with gastrointestinal symptoms. Methods A retrospective analysis was performed for the clinical data of 280 hospitalized infants, who were diagnosed with CMPA presenting mainly with gastrointestinal symptoms. Results Among the 280 infants, 203 infants(72.5%) were aged of less than 6 months. Major manifestations included diarrhea in 171 infants(61.1%), hematochezia in 149 infants(53.2%), vomiting in 71 infants(25.4%), eczema in 57 infants(20.4%), malnutrition in 42 infants(15%) and constipation in 13 infants(4.6%). Of the 280 infants, 258(92.1%) had mild-to-moderate CMPA and 22(7.9%) had severe CMPA. Compared with the mild-to-moderate CMPA group, the severe CMPA group had a significantly higher incidence rate of malnutrition(50.0% vs 12.0%) and a significantly lower incidence rate of hematochezia(22.7% vs 55.8%). The breastfeeding CMPA group had significantly lower incidence rates of malnutrition(10.3% vs 24.6%) and severe CMPA(4.4% vs 18.0%) than the artificial feeding CMPA group, and the artificial feeding CMPA group had a significantly lower incidence rate of hematochezia than the breastfeeding and mixed feeding CMPA groups(37.7% vs 56.6%/59.0%). Conclusions CMPA presenting mainly with gastrointestinal symptoms is more common in infants aged of less than 6 months. Diarrhea and hematochezia are the most common manifestations at the time of onset. Most infants have mild-to-moderate allergy. Compared with breastfeeding, artificial feeding is more likely to cause malnutrition and severe CMPA.
引文
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