Clinical characteristics of Streptococcus milleri group associated acute appendicitis in children
10.11816/cn.ni.2025-250452
- VernacularTitle:米勒链球菌属相关儿童急性阑尾炎的临床特征
- Author:
Jie LIU
1
;
Fei XIA
1
;
Wanjun LUO
1
;
Feng TANG
1
Author Information
1. 华中科技大学同济医学院附属武汉儿童医院(武汉市妇幼保健院)医院感染管理办公室,湖北武汉 430016
- Publication Type:Journal Article
- Keywords:
Acute appendicitis;
Streptococcus milleri group;
Clinical characteristic;
Laboratory test index;
Severity
- From:
Chinese Journal of Nosocomiology
2025;35(18):2851-2855
- CountryChina
- Language:Chinese
-
Abstract:
OBJECTIVE To investigate the clinical characteristics of the acute appendicitis children with Streptococ-cus milleri group(SMG)infection and explore the association between SMG infection and severity of acute appen-dicitis.METHODS A retrospective study was conducted for the children with acute appendicitis who were trea-ted in Wuhan Children's Hospital from Jan.2021 to Dec.2023.The distribution of pathogens isolated from the children with acute appendicitis was analyzed.The children with acute appendicitis were divided into the SMG group(with Streptococcus constellatus/Streptococcus anginosus tested positive)and the non-SMG group according to the test result of SMG in abdominal pus specimens.The clinical characteristics and the results of preoperative laboratory tests were observed and compared between the two groups of children.RESULTS A total of 464 children with acute appendicitis were included in the study,715 strains of pathogens were isolated from the submitted pus specimens.Among the isolated gram-positive bacteria,S.constellatus and S.anginosus were dominant,account-ing for 12.31％and 9.37％,respectively.The analysis of drug resistance showed that the drug resistance rates of the S.constellatus and S.anginosus strains to clindamycin and erythromycin were greater than 40％.As com-pared with the non-SMG group,the length of hospital stay was longer in the SMG group[(10.34±3.93)days],the highest body temperature was higher[(37.78±1.24)℃];the percentage of the children with the use of anti-biotics more than 7 days was 87.10％in the SMG group,the appendiceal perforation rate was 75.48％,the inci-dence rate of diffuse peritonitis was 36.77％,remarkably higher than those of the non-SMG group(allP＜0.05).The total white blood cells was[15.10(11.01,19.13)× 109/L]in the SMG group,with the C-reactive pro-tein(CRP)[76.30(29.23,127.75)mg/L],the fibrinogen[5.01(3.82,6.38)g/L],the serum sodion level[135.35(132.48,137.63)mmol/L];there were significant differences in the above indexes between the SMG group and the non-SMG group(P＜0.05).CONCLUSION The SMG infection is closely associated with the severi-ty of acute appendicitis in the children,and the children are usually complicated with the rise of fibrinogen and CRP and tended to have hyponatremia.
