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PPT丨儿童A族链球菌咽扁桃体炎临床诊疗专家共识(2025)

  • 2026-11-06 20:53:13
PPT丨儿童A族链球菌咽扁桃体炎临床诊疗专家共识(2025)
共识速览
  1. 病原体:GAS 是儿童急性细菌性咽扁桃体炎最常见病原体,C 族、G 族链球菌也较常见。国外研究显示淋病奈瑟菌在青春期儿童及成人中有一定比例,国内少见。不同国家 GAS 占比有差异,我国相关研究较少。
  2. 传播途径:主要经呼吸道飞沫传播,也可通过污染食物、物品间接传播。无症状携带现象在儿童中较显著,无症状携带者传播及诱发风湿热风险较低,通常不推荐常规用抗菌药治疗。
  3. 临床表现:5 - 15 岁高发,3 岁以上患儿症状较显著,如急性发热、咽痛、扁桃体肿大渗出等;婴幼儿临床表现不典型。需与病毒性咽扁桃体炎等鉴别,不同病毒感染症状有差异。
  4. 临床评分制:Centor 评分和 Mclsaac 评分可辅助诊断及决策,但适用性和准确性在其他经济水平地区需验证。我国尚未建立普适性临床评分评价体系,评分系统不如病原学检测可靠。
  5. 病原诊断方法:主要有细菌培养、RADT,核酸检测可确诊,ASO 抗体检测一般用于既往感染证据。细菌培养是金标准,但耗时;RADT 检测快,特异度高;核酸检测速度快,灵敏度和特异度良好。
  6. 诊断标准:临床诊断需满足发热、咽痛等症状及外周血指标;确诊需临床诊断基础上,有病原学检测阳性结果。
  7. 反复发病原因:可能与抗感染治疗不充分、再次感染或本身为慢性携带者并发病毒感染有关。充足治疗时长对提高根除率很重要,不推荐仅为减少复发做扁桃体切除术。
  8. GAS 咽部携带者:咽拭子检测阳性但无临床表现者为携带者,携带率在健康儿童中为 2% - 17%。携带者传播和引发并发症风险低,高危因素携带者可考虑根除治疗。
  9. 抗菌药物治疗方案:确诊后首选青霉素类,过敏者选头孢类。阿奇霉素和克林霉素耐药率高,仅作敏感菌株替代选择。治疗疗程一般为 10 天,以预防急性风湿热。
  10. 风湿热预防:GAS 咽扁桃体炎确诊患儿或有风湿热家族史、高危因素的无症状 GAS 携带患儿需进行风湿热抗菌药物一级预防。
  11. 长效青霉素应用:可用于治疗 GAS 咽扁桃体炎,尤其适用于难以完成口服疗程患儿,也用于风湿热二级预防,二级预防持续时间需综合评估。
  12. ASO 临床意义:ASO 检测用于 ARF 和肾小球肾炎辅助诊断,滴度 2 倍或以上升高提示 GAS 前驱感染,阴性不能排除感染,不用于急性期诊断。
  13. 并发症:包括化脓性和非化脓性并发症。化脓性如扁桃体周围脓肿等;非化脓性如 ARF、PSGN 等。建议患儿在病程 2 - 3 周进行相关检查监测并发症。

丨参考文献丨

国家儿童感染与过敏性疾病监测中心, 福棠儿童医学发展研究中心, 北京市儿科质控中心, 等 . 儿童 A 族链球菌咽扁桃体炎临床诊疗专家共识(2025)[J]. 中华儿科杂志, 2025, 63(5): 468-476. DOI: 10.3760/cma.j.cn112140-20241008-00699.

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