目的 探讨住院儿童甲型流感病毒肺炎合并其他病原菌感染的临床特征。方法 通过回顾性研究方法,分析2021年6月—2023年6月广州市妇女儿童医疗中心住院治疗的153例甲型流感病毒肺炎患儿的临床资料,针对有无合并其他病原菌感染,分为混合感染组及非混合感染组两组,分别为98例及55例,分析并对比两组的临床特征。结果 甲型流感病毒肺炎患儿以发热、咳嗽、呕吐/腹泻等症状为主,其中混合感染组患儿呕吐/腹泻症状占比高于非混合感染组（P<0.05）;两组患儿其他症状及并发症对比差异无统计学意义（P>0.05）;儿童甲型流感病毒肺炎患儿检出合并细菌感染的患儿65例（29.41%）,合并肺炎支原体感染的患儿33例（21.57%）;合并病毒感染的患儿20例（13.07%）。与非混合感染组比较,混合感染组患儿乳酸脱氢酶水平更高,白细胞计数<4×10⁹/L的人数占比更少（P<0.05）;其他实验室指标对比差异无统计学意义（P>0.05）;经过抗病毒及对症治疗后,150例（98.04%）患儿痊愈出院,3例出现严重并发症,其均伴有其他病原菌感染。与非混合感染组比较,混合感染组患儿住院天数更长、住院费用更高（P<0.05）;其他预后指标对比差异无统计学意义（P>0.05）。结论 甲型流感病毒肺炎患儿易感染其他的病原菌,导致疾病治疗难度加大,因此临床要提高警惕,以防混合感染情况发生,尽早采取有效的诊治措施,提高疾病早期治愈率。

Objective To explore the clinical characteristics of hospitalized children with influenza A virus pneumonia complicated with other pathogens．Methods The clinical data of 153 children with influenza A virus pneumonia hospitalized in Guangzhou Women and Children Medical Center in the past two years（June 2021 ~ June 2023）were analyzed retrospectively． According to whether they were infected with other pathogens,they were divided into mixed infection group and non-mixed infection group,with 98 cases and 55 cases respectively．The clinical characteristics of the two groups were analyzed and compared．Results Fever,cough,vomiting and diarrhea were the main symptoms in children with influenza A virus pneumonia,and the proportion of vomiting and diarrhea in children with mixed infection group was higher than that in children without mixed infection group（P<0.05）．There was no significant difference in other symptoms and complications between the two groups（P>0.05）．There were 65 children（29.41%）with influenza A virus pneumonia and 33 children（21.57%）with mycoplasma pneumonia,20 children（13.07%）with virus infection．Compared with non-mixed infection group,the level of lactate dehydrogenase in children with mixed infection group was higher,and the proportion of children with white blood cell count<4×10⁹/L was less（P<0.05）．There was no significant difference in other laboratory indexes（P>0.05）．After antiviral and symptomatic treatment,150 cases（98.04%）were cured and discharged,and 3 cases had serious complications,all of which were accompanied by other pathogens．Compared with non-mixed infection group,children in mixed infection group had longer hospitalization days and higher hospitalization expenses（P<0.05）．There was no significant difference in other prognostic indicators（P>0.05）．Conclusions Children with influenza A virus pneumonia are easily infected with other pathogens,which makes it more difficult to treat the disease．Therefore,we should be vigilant in clinic to prevent mixed infection and take effective diagnosis and treatment measures as soon as possible to improve the early cure rate of the disease．

目的 分析区级医院甲型流行性感冒患者的临床特征,为基层医院甲型流感的早期诊断及防控工作提供科学依据。方法 对2019年12月广州市番禺区中心医院发热门诊就诊的具有流感样症状的发热患者共628例,进行咽拭子甲型流感病毒核酸检测,收集患者临床资料,包括性别、年龄、体温、症状、血常规,根据核酸检测结果分为阴性组及阳性组,2组结果进行比较。结果 甲型流感病毒核酸检测阳性患者共116例,阳性率为18.5%。阳性组发病年龄以14～19岁所占比例最大,共91例(78.4%)。阳性组平均年龄小于阴性组(P＜0.05)。阳性组发病体温以38.1～39 ℃所占比例最大,共47例(46.5%)。阳性者平均体温高于阴性组(P＜0.01)。症状方面,阳性组仅鼻塞流涕比例较阴性组高(P＜0.05)。阳性组白细胞计数、中性粒细胞绝对值、淋巴细胞绝对值、淋巴细胞百分比均低于阴性组(P＜0.01)。结论 2019年冬季甲型流感患者以青少年为主,单纯症状较难区分甲型流感及普通感冒,需结合血常规特别是白细胞计数、中性粒细胞绝对值、淋巴细胞绝对值的降低进行分析。

Objective The clinical characteristics of patients with influenza A in district hospital were analyzed to provide scientific basis for early diagnosis, prevention and control of influenza A in primary hospital. Methods A total of 628 patients with influenza-like symptoms from Guangzhou Panyu Central Hospital in December 2019 were enrolled, and the clinical data was collected, including gender, age, body temperature, symptoms, and blood test results. According to the result of influenza A nucleic acid detection, patients were divided into negative group and positive group, and the clinical data of these two groups were compared. Results A total of 116 patients were positive in influenza A virus nucleic acid detection, which positive rate was 18.5%. In the positive group, patients aged 14-19 accounted for the largest proportion, with 91 patients (78.4%). The mean age of the positive group was significantly lower than that of the negative group (P＜0.05). Body temperature ranged from 38.1 to 39 ℃ accounted for the largest proportion in the positive group, with 47 patients (46.5%). The mean body temperature of the positive group was significantly higher than that of the negative group (P＜0.01). In terms of symptoms, only the proportion of nasal congestion in positive group was higher than that in negative group (P＜0.05). In terms of blood test results, WBC count, neutrophil absolute value, lymphocyte absolute value and lymphocyte percentage in the positive group were significantly lower than those in the negative group (P＜0.01). Conclusions The majority of patients with influenza A in the winter of 2019 were teenagers, and it was difficult to distinguish influenza A from the common cold only by symptoms. The differential diagnosis should be carried out in combination with the blood routine analysis, especially the decrease in the white blood cell count, the absolute value of neutrophil and the absolute value of lymphocytes.