Naval Hospital Jacksonville, Jacksonville, FL, USA.
Am Fam Physician. 2021 Dec 1;104(6):618-625.
In the United States, pneumonia is the most common cause of hospitalization in children. Even in hospitalized children, community-acquired pneumonia is most likely of viral etiology, with respiratory syncytial virus being the most common pathogen, especially in children younger than two years. Typical presenting signs and symptoms include tachypnea, cough, fever, and anorexia. Findings most strongly associated with an infiltrate on chest radiography in children with clinically suspected pneumonia are grunting, history of fever, retractions, crackles, tachypnea, and the overall clinical impression. Chest radiography should be ordered if the diagnosis is uncertain, if patients have hypoxemia or significant respiratory distress, or if patients fail to show clinical improvement within 48 to 72 hours after initiation of antibiotic therapy. Outpatient management of community-acquired pneumonia is appropriate in patients without respiratory distress who can tolerate oral antibiotics. Amoxicillin is the first-line antibiotic with coverage for Streptococcus pneumoniae for school-aged children, and treatment should not exceed seven days. Patients requiring hospitalization and empiric parenteral therapy should be transitioned to oral antibiotics once they are clinically improving and able to tolerate oral intake. Childhood and maternal immunizations against S. pneumoniae, Haemophilus influenzae type b, Bordetella pertussis, and influenza virus are the key to prevention.
在美国,肺炎是儿童住院的最常见原因。即使在住院的儿童中,社区获得性肺炎也极有可能是病毒性病因,其中呼吸道合胞病毒是最常见的病原体,尤其是在两岁以下的儿童中。典型的表现包括呼吸急促、咳嗽、发热和食欲不振。在临床上疑似患有肺炎的儿童中,与胸部放射影像学浸润最密切相关的发现是喘鸣、发热史、肋间隙凹陷、啰音、呼吸急促以及整体临床印象。如果诊断不确定、患者存在低氧血症或明显的呼吸窘迫,或者患者在开始抗生素治疗后 48 至 72 小时内没有临床改善,应开具胸部放射影像学检查。对于没有呼吸窘迫且能耐受口服抗生素的患者,适合在门诊管理社区获得性肺炎。阿莫西林是学龄儿童肺炎链球菌的一线抗生素,治疗时间不应超过 7 天。需要住院和经验性静脉内治疗的患者,一旦临床改善并能够耐受口服摄入,就应转为口服抗生素。针对肺炎链球菌、流感嗜血杆菌 b 型、百日咳博德特氏菌和流感病毒的儿童和母体免疫接种是预防的关键。