Yu Li, Ting Ye, Xiao-Lu Zhang, Hui Yang, Yan Wu, Bao-Hua Huang, Qi Zhao, Yu-Feng Gu
{"title":"Genus <i>Shewanella</i>: A Potential Intestinal Colonizer Associated With Post-Operative Surgical Site Infections in Coastal Regions.","authors":"Yu Li, Ting Ye, Xiao-Lu Zhang, Hui Yang, Yan Wu, Bao-Hua Huang, Qi Zhao, Yu-Feng Gu","doi":"10.1089/sur.2023.352","DOIUrl":null,"url":null,"abstract":"<p><p><b><i>Background:</i></b> This study aims to elucidate the clinical characteristics of <i>Shewanella</i>-related surgical site infections (SSIs) and assess the risk of mortality in patients by establishing a predictive model. <b><i>Patients and Methods:</i></b> A retrospective analysis of medical history and laboratory data of <i>Shewanella</i>-related SSI patients over the past decade was conducted via the electronic medical record (EMR) system. A predictive model for mortality risk in <i>Shewanella</i>-related SSI patients was established using plasma interleukin-6 (IL-6) levels combined with the Howell-PIRO scoring system. <b><i>Results:</i></b> Over the past 10 years, 45 strains of <i>Shewanella</i> were isolated from specimens such as bile, drainage fluid, and whole blood in patients with digestive tract SSIs. Among them, 21 of 45 (46.67%) patients underwent malignant tumor resection of the digestive system, 14 of 45 (31.11%) underwent endoscopic retrograde cholangiopancreatography (ERCP) common bile duct exploration or the stone removal, and seven of 45 (15.56%) were trauma repair patients with fractures and abdominal injuries. Among the 45 <i>Shewanella</i>-related SSI patients, 10 died within 30 days of infection, six cases involved infections with more than two other types of bacteria. The combined use of IL-6 and Howell-PIRO scores for mortality risk assessment yielded an receiver operating characteristic (ROC) curve with an area under the curve (AUC) of 0.9350, a positive predictive value of 92.71%, a negative predictive value of 94.58%, a diagnostic sensitivity of 95.35%, and a diagnostic specificity of 92.14%-all higher than the model using IL-6 or Howell-PIRO scores alone. <b><i>Conclusions:</i></b> We found that residents in coastal areas faced an increased risk of <i>Shewanella</i>-related SSI. Moreover, the higher the number of concurrent microbial infections occurring alongside <i>Shewanella</i>-related SSI, the greater the mortality rate among patients. The combined application of plasma IL-6 levels and the Howell-PIRO scoring system is beneficial for assessing patient mortality risk and guiding timely and proactive clinical interventions.</p>","PeriodicalId":22109,"journal":{"name":"Surgical infections","volume":null,"pages":null},"PeriodicalIF":1.4000,"publicationDate":"2024-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Surgical infections","FirstCategoryId":"3","ListUrlMain":"https://doi.org/10.1089/sur.2023.352","RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"2024/4/29 0:00:00","PubModel":"Epub","JCR":"Q4","JCRName":"INFECTIOUS DISEASES","Score":null,"Total":0}
引用次数: 0
Abstract
Background: This study aims to elucidate the clinical characteristics of Shewanella-related surgical site infections (SSIs) and assess the risk of mortality in patients by establishing a predictive model. Patients and Methods: A retrospective analysis of medical history and laboratory data of Shewanella-related SSI patients over the past decade was conducted via the electronic medical record (EMR) system. A predictive model for mortality risk in Shewanella-related SSI patients was established using plasma interleukin-6 (IL-6) levels combined with the Howell-PIRO scoring system. Results: Over the past 10 years, 45 strains of Shewanella were isolated from specimens such as bile, drainage fluid, and whole blood in patients with digestive tract SSIs. Among them, 21 of 45 (46.67%) patients underwent malignant tumor resection of the digestive system, 14 of 45 (31.11%) underwent endoscopic retrograde cholangiopancreatography (ERCP) common bile duct exploration or the stone removal, and seven of 45 (15.56%) were trauma repair patients with fractures and abdominal injuries. Among the 45 Shewanella-related SSI patients, 10 died within 30 days of infection, six cases involved infections with more than two other types of bacteria. The combined use of IL-6 and Howell-PIRO scores for mortality risk assessment yielded an receiver operating characteristic (ROC) curve with an area under the curve (AUC) of 0.9350, a positive predictive value of 92.71%, a negative predictive value of 94.58%, a diagnostic sensitivity of 95.35%, and a diagnostic specificity of 92.14%-all higher than the model using IL-6 or Howell-PIRO scores alone. Conclusions: We found that residents in coastal areas faced an increased risk of Shewanella-related SSI. Moreover, the higher the number of concurrent microbial infections occurring alongside Shewanella-related SSI, the greater the mortality rate among patients. The combined application of plasma IL-6 levels and the Howell-PIRO scoring system is beneficial for assessing patient mortality risk and guiding timely and proactive clinical interventions.
期刊介绍:
Surgical Infections provides comprehensive and authoritative information on the biology, prevention, and management of post-operative infections. Original articles cover the latest advancements, new therapeutic management strategies, and translational research that is being applied to improve clinical outcomes and successfully treat post-operative infections.
Surgical Infections coverage includes:
-Peritonitis and intra-abdominal infections-
Surgical site infections-
Pneumonia and other nosocomial infections-
Cellular and humoral immunity-
Biology of the host response-
Organ dysfunction syndromes-
Antibiotic use-
Resistant and opportunistic pathogens-
Epidemiology and prevention-
The operating room environment-
Diagnostic studies