Chetty Krishne, Thomson Anne H
Department of Paediatrics, John Radcliffe Hospital, Headington, Oxford, UK.
Paediatr Drugs. 2007;9(6):401-11. doi: 10.2165/00148581-200709060-00007.
Community-acquired pneumonia (CAP) is a significant cause of childhood morbidity and mortality worldwide. Viral etiology is most common in young children and decreases with age. Streptococcus pneumoniae is the single most common bacterial cause across all age groups. Atypical organisms present similarly across all age groups and may be more common than previously recognized.A bacterial pneumonia should be considered in children presenting with fever >38.5 degrees C, tachypnea, and chest recession. Oxygen therapy is life saving and should be given when oxygen saturation is <92%. For non-severe pneumonia, oral amoxicillin is the antibacterial of choice with low failure rates reported. Severely ill children are traditionally treated with parenteral antibacterials. Penicillin non-susceptible S. pneumoniae prevalence rates are increasing and have been linked to community antibacterial prescribing. Most pneumococci remain sensitive to high-dose penicillin-based antibacterials but macrolide resistance is also a problem in some communities. However, primary combination treatment with macrolides is indicated in areas where there is a high prevalence of atypical organisms. The most common complications in CAP are parapneumonic effusions and empyema. The use of ultrasonography combined with intercostal drainage augmented with the use of fibrinolytic therapy has significantly reduced the morbidity associated with these complications. There is increasing evidence that a preventative strategy with the 7-valent pneumococcal conjugate vaccine (PCV-7) results in a significant fall in CAP in early childhood.
社区获得性肺炎(CAP)是全球儿童发病和死亡的重要原因。病毒病因在幼儿中最为常见,并随年龄增长而减少。肺炎链球菌是所有年龄组中最常见的单一细菌病因。非典型病原体在所有年龄组中的表现相似,可能比以前认识到的更为常见。对于发热>38.5摄氏度、呼吸急促和有胸廓凹陷的儿童,应考虑细菌性肺炎。氧疗可挽救生命,当氧饱和度<92%时应给予氧疗。对于非重症肺炎,口服阿莫西林是首选抗菌药物,报告的失败率较低。传统上,重症儿童采用肠外抗菌药物治疗。对青霉素不敏感的肺炎链球菌患病率正在上升,并且与社区抗菌药物的处方有关。大多数肺炎球菌对高剂量基于青霉素的抗菌药物仍然敏感,但大环内酯类耐药性在一些社区也是一个问题。然而,在非典型病原体患病率高的地区,建议采用大环内酯类药物进行初始联合治疗。CAP最常见的并发症是胸腔积液和脓胸。超声检查结合肋间引流并辅以纤维蛋白溶解疗法的使用,已显著降低了与这些并发症相关的发病率。越来越多的证据表明,采用7价肺炎球菌结合疫苗(PCV-7)的预防策略可使幼儿期CAP显著下降。