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PPT丨新生儿牛奶蛋白过敏诊断与管理专家共识(2023)

  • 2026-09-20 19:09:03
PPT丨新生儿牛奶蛋白过敏诊断与管理专家共识(2023)
共识速览
  1. 症状识别
    • 主要类型及症状:新生儿 CMPA 以非 IgE 介导为主,摄入过敏原 2h 后,多为 6 - 72h 发病,属迟发型过敏反应。常见表现为食物蛋白诱导的过敏性直肠结肠炎,多见于足月儿,出生 2 - 6 周起病,首发血便,也有呕吐等症状,后期多可自行缓解;食物蛋白诱导性小肠结肠炎综合征,接触变应原 1 - 4h 内出现反复呕吐等症状,严重者有低体温等;Heiner 综合征罕见,表现为反复肺部浸润、生长受限等。
    • 早产儿特点:早产儿消化系统和免疫系统发育不完善,CMPA 发病时间晚于足月儿且病情更重,更易患食物蛋白诱导性小肠结肠炎综合征,需与 NEC 等疾病鉴别。其发病与喂养不当、肠道缺血及免疫反应发育不成熟有关,但也有早发型个案。
  2. 诊断与鉴别
    • 诊断方法:多种婴幼儿 CMPA 筛查和诊断方法,如外周血嗜酸性粒细胞、过敏原皮肤点刺试验等,不适用于新生儿。新生儿 CMPA 主要靠过敏高危因素、临床症状与摄食关系、诊断性回避试验效果及排除其他疾病综合诊断。诊断性回避试验中,母乳喂养母亲回避牛奶蛋白,配方喂养根据病情选 eHF 或 AAF,症状多在回避后 3 - 4d 缓解,2 - 4 周消失;OFC 试验是诊断金标准,但新生儿不常规用;腹部超声可辅助鉴别 CMPA 和 NEC,但超声诊断有主观性,需结合临床判断。
    • 鉴别疾病:新生儿 CMPA 需与 NEC、感染性肠炎、胃肠道畸形、乳糖不耐受、胃食管反流病等鉴别。与 NEC 鉴别时,可从临床症状、实验室检查、影像学检查等方面判断;与感染性肠炎鉴别,可依据发热、腹泻及病原学检查等;胃肠道畸形可通过腹部 X 线等检查鉴别;乳糖不耐受可通过粪便还原糖测定等鉴别;胃食管反流病鉴别较困难,可先进行饮食回避试验及 OFC 试验。
  3. 饮食管理
    • 母乳喂养:母乳喂养新生儿发生 CMPA 时,若无严重过敏症状,建议继续母乳喂养,母亲严格回避含牛奶食品并补充钙及维生素 D 制剂。出现严重过敏症状,或母亲回避饮食后症状无改善等情况,选择 AAF 或 eHF 喂养,症状改善后母亲可尝试重新引入牛奶食物。
    • 配方喂养:配方喂养新生儿发生 CMPA 时,轻至中度临床表现患儿首选 eHF 喂养,若 eHF 治疗不耐受、患儿出现严重过敏症状等情况,考虑更换为 AAF 喂养。症状改善后进行 OFC 试验,若症状再现,继续 eHF 或 AAF 替代喂养 3 - 6 个月。
  4. 营养管理:牛奶蛋白过敏新生儿,尤其是早产儿等营养高风险患儿,应定期评估生长和营养状况,个性化补充营养素。母乳喂养且有生长不良的早产儿,可根据肠道耐受情况添加母乳强化剂;eHF、AAF 喂养患儿要注意配方渗透压;还需补充维生素 D、钙等矿物质,并监测相关指标。
  5. 预防措施:鼓励新生儿期母乳喂养,避免生后早期引入含牛奶配方,可降低 CMPA 风险;不推荐限制母亲妊娠期、哺乳期牛奶及其制品饮食预防 CMPA;不推荐母乳喂养新生儿使用 pHF 预防,过敏高风险新生儿不能母乳喂养或母乳不足时,不推荐用 pHF 或 eHF 降低 CMPA 风险;补充益生菌、益生元等不能预防 CMPA。

丨参考文献丨

中华医学会儿科学分会新生儿学组中华儿科杂志编辑委员会 ,周文浩 等,新生儿牛奶蛋白过敏诊断与管理专家共识(2023),中华儿科杂志 2024 年1 月第 62 卷第 1 期 Chin J Pediatr, January 2024, Vol. 62, No. 1

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  13. SELECT * FROM `article` WHERE `id` < 552205 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.000614s ]
  14. SELECT * FROM `article` WHERE `id` < 552205 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.000566s ]
  15. SELECT * FROM `article` WHERE `id` < 552205 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.000707s ]
0.094471s