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Wang Y, Ma L, Li Y, Li Y, Zheng Y, Zhang X. Epidemiology and clinical characteristics of pathogens positive in hospitalized children with segmental/lobar pattern pneumonia. BMC Infect Dis 2020; 20:205. [PMID: 32143599 PMCID: PMC7060602 DOI: 10.1186/s12879-020-4938-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2019] [Accepted: 02/28/2020] [Indexed: 11/21/2022] Open
Abstract
Background The occurrence of segmental/lobar pattern pneumonia (S/L-PP) in children has recently increased. The pathogens of the disease may change for the misuse of antibiotics and the application of vaccines. Therefore, pathogens positive in hospitalized children with S/L-PP and their association with clinical characteristics may have changed. The aim of this study was to analyze the pathogens positive in hospitalized children with S/L-PP and their association with clinical characteristics. Method The current study analyzed the epidemiological and clinical characteristics of pathogens positive in children with S/L-PP under 14 years old at a single hospital between 1st Jan 2014 and 31st Dec 2018 retrospectively. The pathogens were detected by microbial cultivation, indirect immunofluorescence of the kit (PNEUMOSLIDE IgM), Elisa, and/or real-time PCR in the samples of the patients. Results A total of 593 children with S/L-PP received treatment at a single hospital during the study period by inclusion criteria. Four hundred fifty-one patients were single positive for one pathogen and 83 patients were positive for at least 2 pathogens. Mycoplasma pneumoniae (M.pneumoniae) (72.34%) was the most commonly detected pathogen, followed by Streptococcus pneumoniae (S.pneumoniae) (8.77%). The prevalence of M.pneumoniae in children with S/L-PP increased with time (p < 0.05). The positive rate of M.pneumoniae increased with ages of patients (p < 0.05). M.pneumoniae was statistically associated with the extrapulmonary manifestations while S.pneumoniae was statistically associated with abnormal white blood cells (WBCs) and C reactive proteins (CRPs) (p < 0.05). Conclusion M.pneumoniae was the most positive pathogen in children with S/L-PP. The positive rate of M.pneumoniae in children with S/L-PP increased with time and the ages of children. M.pneumoniae was associated with extrapulmonary manifestations while S.pneumoniae was associated with abnormal WBCs and CRPs.
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Affiliation(s)
- Yanxia Wang
- Pediatrics, Zibo Central Hospital, No. 54, Gongqingtuanxi Street, Zibo City, 255036, Shandong Province, China
| | - Liji Ma
- Pediatrics, Zibo Central Hospital, No. 54, Gongqingtuanxi Street, Zibo City, 255036, Shandong Province, China
| | - Ying Li
- Pediatrics, Zibo Central Hospital, No. 54, Gongqingtuanxi Street, Zibo City, 255036, Shandong Province, China
| | - Yuyun Li
- Pediatrics, Zibo Central Hospital, No. 54, Gongqingtuanxi Street, Zibo City, 255036, Shandong Province, China. .,Allergic Clinic, Zibo Central Hospital, No.54, Gongqingtuanxi Street, Zibo City, 255036, Shandong Province, China.
| | - Yanfei Zheng
- Pediatrics, Zibo Central Hospital, No. 54, Gongqingtuanxi Street, Zibo City, 255036, Shandong Province, China
| | - Xiaoyue Zhang
- Pediatrics, Zibo Central Hospital, No. 54, Gongqingtuanxi Street, Zibo City, 255036, Shandong Province, China
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Trends in Pediatric Complicated Pneumonia in an Ontario Local Health Integration Network. CHILDREN-BASEL 2018; 5:children5030036. [PMID: 29510484 PMCID: PMC5867495 DOI: 10.3390/children5030036] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/02/2017] [Revised: 02/08/2018] [Accepted: 02/26/2018] [Indexed: 11/17/2022]
Abstract
Following the introduction of 7-valent pneumococcal vaccine (PCV7), while overall rates of invasive pneumococcal disease and pneumococcal pneumonia in children declined, rates of empyema increased. We examined changes in the incidence of hospitalization for pediatric complicated pneumonia (PCOMP) in Eastern Ontario, Canada, particularly since the introduction of the 13-valent vaccine (PCV13). A retrospective chart review was carried out evaluating previously healthy children admitted with PCOMP, which included empyema, parapneumonic effusion, necrotizing pneumonia, and lung abscess between 2002 and 2015. Three-hundred seventy-one children were included. Subjects had a median age of four years, and 188/370 (50.8%) required a chest tube. Admission rates changed markedly during this time period. The number of admissions per year rose most sharply between 2009 and 2012, corresponding to the period following introduction of PCV7 and then the occurrence of pandemic influenza A (H1N1). In children who likely received PCV13, the incidence of PCOMP returned to approximately pre-PCV7 levels. In contrast, rates of PCOMP in older children (who would not have received PCV13) remained elevated during the post-PCV13 time period. While rates of PCOMP, particularly in older children, remain elevated following the introduction of PCV13, this might be expected to resolve with more widespread vaccine coverage with PCV13 and herd immunity.
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