目的 分析不同年龄、不同季节河源市源城区呼吸道感染的病原学情况,指导临床用药。方法 回顾性研究2020年3月—2022年2月2 468例呼吸道感染的住院患儿,取咽部分泌物送广州达安临床检验中心进行呼吸道核酸六项检测并分析结果。包括：肺炎链球菌（Sp）、呼吸道合胞病毒（RSV）、卡他莫拉菌（MC）、流感嗜血杆菌（Hi）、肺炎支原体（LP）、腺病毒（ADV）。结果 （1）2 468例患儿的标本中阳性率52.8%,其中RSV最高,其他依次为Sp、Hi、MC、MP、ADV。而混合感染仅次于RSV。（2）婴儿组和幼儿组以RSV感染为主,在学龄前组和学龄组儿童中,以Sp感染为主,各病原体的混合感染组合很多,一种细菌合并一种病毒多见。（3）秋冬季是河源市源城区呼吸道感染的高发季节,RSV是秋冬季呼吸道感染最主要的病原体。结论 秋冬季节为河源市源城区呼吸道感染的高发季节,RSV为该季节的主要病原体。RSV也是婴幼儿组感染的主要致病菌,随着年龄增大,细菌感染导致的呼吸道疾病逐渐占优势。混合感染在各年龄组中均占比较高,值得临床诊疗的重视。

Objective To analyze the etiology of respiratory tract infection in Yuancheng District of Heyuan City ,which was in different ages and seasons,and to provide guidance of clinical drug usage．Methods Cases of 2 468 hospitalized children with respiratory tract infection from March 2020 to February 2022 were analyzed．The secretion from pharynx was collected and sent to Guangzhou Da’an Clinical Examination Center for six respiratory nucleic acid tests and then the results were analyzed,including Streptococcus pneumoniae（Sp）,respiratory syncytial virus（RSV）,Moraxella catarrhalis（MC）,Haemophilus influenzae（Hi）,Mycoplasma pneumonia（MP）,adenovirus（ADV）．Results The positive rate of 2 468 hospitalized children with respiratory tract infection was 52.8%,of which the highest was RSV,followed by Sp,Hi,MC,MP,ADV．Meanwhile the mixed infection rate was second to RSV．RSV infection was the main infection in infant group and early-aged children group,while in preschool group and school-aged group,Sp infection was the main infection．There were many mixed infection of pathogen,and one bacteria combined with one virus was more common．Respiratory tract infection had high incidence in autumn and winter in Yuancheng District of Heyuan City,RSV was the major pathogen．Conclusions Autumn and winter were the seasons with high respiratory tract infection incidence in Yuancheng District of Heyuan City,and RSV was the main pathogen in these two seasons．RSV was also the main pathogen of infant group infection．But with the increase of children’s age,bacterial infection became the main reason of respiratory tract diseases．Mixed infection accounts for a high proportion in all age groups,which should be valued in clinical diagnosis and treatment．

目的 分析高龄呼吸道感染患者病原菌检测结果及耐药性情况,总结高龄呼吸道感染患者抗菌药物的合理用药经验。方法 对我院2018年1月—2020年12月收治的784例高龄呼吸道感染患者痰液标本进行病原菌培养及药敏试验,统计分析检测结果。结果 701株病原菌中,革兰阴性(G-)菌、革兰阳性(G+)菌和真菌分别检出497株、136株和68株,分别占70.90%、19.40%和9.70%。G-菌以肺炎克雷伯菌、铜绿假单胞菌、大肠埃希菌和奇异变形杆菌为主,分别占21.97%(154株)、18.97%(133株)、14.98%(105株)和7.13%(50株),G+菌以金黄色葡萄球菌为主,占11.27%(79株)。G-菌耐药性前五位依次为氨苄西林、哌拉西林、复方磺胺甲噁唑、头孢唑啉和头孢他啶,耐药率依次为95.96%、85.11%、79.88%、77.06%和52.92%。G+菌耐药性前五位依次为青霉素、氨苄西林、红霉素、环丙沙星和复方磺胺甲噁唑,耐药率依次为95.59%、89.71%、84.56%、80.15%和75.00%。结论 高龄呼吸道感染患者病原菌构成以肺炎克雷伯菌、铜绿假单胞菌、大肠埃希菌、奇异变形杆菌和金黄色葡萄球菌为主,G-菌对氨苄西林、哌拉西林、复方磺胺甲噁唑、头孢唑啉和头孢他啶耐药最强,G+菌对青霉素、氨苄西林、红霉素、环丙沙星和复方磺胺甲噁唑最强,且呈多重耐药特征,加强临床耐药性监测有助于指导合理用药。

Objective To analyze the test results and drug resistance of pathogenic bacteria in elderly patients with respiratory tract infections, and summarize the rational use of antibiotics in elderly patients with respiratory tract infections. Methods The sputum samples of 784 elderly patients with respiratory tract infections admitted to our hospital from January 2018 to December 2020 were collected for pathogen culture and drug sensitivity test, and the test results were statistically analyzed. Results Among 701 strains of pathogenic bacteria, 497 strains were Gram-negative (G-) bacteria (70.90%), 136 strains were Gram-positive (G+) bacteria (19.40%) and 68 strains were fungi (9.70%). G-bacteria were mainly Klebsiellapneumoniae, Pseudomonas aeruginosa, Escherichia coli and Proteus mirabilis, accounting for 21.97% (154 strains), 18.97% (133 strains), 14.98% (105 strains) and 7.13% (50 strains). G+bacteria were mainly Staphylococcus aureus, accounting for 11.27% (79 strains). The top five antibiotics which G-bacteria resisted were ampicillin, piperacillin, compound sulfamethoxazole, cefazolin and ceftazidime.The resistance rates were 95.96%, 85.11%, 79.88%, 77.06% and 52.92%,respectively. The top five antibiotics which G+bacteria resisted were penicillin, ampicillin, erythromycin, ciprofloxacin and compound sulfamethoxazole, and the drug resistance rates were 95.59%, 89.71%, 84.56%, 80.15% and 75.00%, respectively. Conclusions The pathogenic bacteria in elderly patients with respiratory tract infections were mainly Klebsiella pneumoniae, Pseudomonas aeruginosa, Escherichia coli, Proteus mirabilis and Staphylococcus aureus. G-bacteria resisted ampicillin, piperacillin,compound sulfamethoxazole, cefazolin and ceftazidime the most. G+bacteria were most resistant to penicillin, ampicillin, erythromycin, ciprofloxacin and compound sulfamethoxazole, and were characterized by multi-drug resistance.Enhancing bacterial resistance monitoring helps guiding the rational use of drugs.

目的 探讨揭阳地区急性下呼吸道感染住院患儿病毒病原学特点。方法 对2 125例急性下呼吸道感染患儿应用直接免疫荧光法(DIF)进行A型流感病毒(甲型流感病毒IFA)、B型流感病毒(乙型流感病毒IFB)、呼吸道合胞病毒(RSV)、腺病毒(AdV)、副流感病毒1(PIVⅠ)、2(PIVⅡ)和3型(PIVⅢ)进行病毒学检测。结果 2 125例患儿鼻咽部分泌物标本中有538例检测出至少1种病毒,总阳性率25.3％,其中RSV 阳性率(19.7%)明显高于其他病毒,具有统计学意义。春、夏、冬季的RSV阳性率大致相当,明显高于秋季。婴儿期组RSV阳性率(27.2%)最高,幼儿期组(18.7%)次之,均显著高于学龄前期、学龄期,后2组阳性率无统计学差异,青春期组未检出RSV。结论 病毒是急性下呼吸道感染的重要病原体,而其中又以RSV为著,RSV感染具有显著的季节性和年龄特征性。

Objective To investigate the viral etiology feature in hospitalized children with acute lower respiratory infection in Jieyang area. Methods A total of 2 125 children with acute lower respiratory tract infection were screened by direct immune fluorescence assay (DIF) for influenza virus A (IFA), influenza virus B (IFB), respiratory syncytial virus (RSV), adenovirus (AdV), parainfluenza virus I (PIV Ⅰ), PIV Ⅱ and PIV Ⅲ. Results In 2 125 cases of nasopharyngeal secretory specimens, 538 cases were detected at least one kinds of viruses. The total positive rate was 25.3%, of which the positive rate of RSV (19.7%) was higher than that of other viruses. The positive rate of RSV was similar in spring, summer and winter, much higher than that in autumn.The positive rate of RSV in infancy group (27.2%) was the highest,then the second was the toddler's age(18.7%), both of which were higher than that in preschool age group and school age group. There was no significant difference in the positive rate between preschool age group and school age group. In addition, RSV was not detected in the adolescence group. Conclusion Virus is an important pathogen of acute lower respiratory tract infection. The most common virus is RSV, infection of which has seasonal and age characteristics.

目的 分析社区综合干预对小儿反复呼吸道感染的影响,为社区临床治疗小儿反复呼吸道感染性疾病提供理论依据。方法 采用随机抽签方式,从我社区2012年10月—2014年10月期间收治的小儿反复呼吸道感染患儿中,随机抽取60例纳入本项研究,依据就诊单双顺序,分为研究组30例(社区综合干预方式)和对照组30例(常规性治疗和常规措施进行干预),对两组患儿干预结果进行对比分析。结果 研究组治疗总疗效高于对照组(93.33% vs 76.67%),差异有统计学意义(P<0.05)。对比治疗干预过程中疾病发作次数、就诊次数状况,研究组优于对照组,差异有统计学意义(P<0.05)。干预后研究组小儿呼吸道感染致病因素改善情况(除滥用抗生素外)优于对照组,差异有统计学意义(P<0.05)。结论 针对小儿反复呼吸道感染疾病可采用社区综合干预方式,可显著提升治疗有效率,缓解病情,降低反复感染发生率,效果突出,具有广阔应用前景。