Risk factors and Predictors of Mortality in Streptococcal Necrotizing Soft-Tissue Infections: A Multicenter Prospective Study.
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Authors
Bruun, TrondRath, Eivind
Bruun Madsen, Martin
Oppegaard, Oddvar
Nekludov, Michael
Arnell, Per
Karlsson, Ylva
Babbar, Anshu
Bergey, Francois
Itzek, Andreas
Hyldegaard, Ole
Norrby-Teglund, Anna
Skrede, Steinar
INFECT Study Group
Issue Date
2020-01-10
Metadata
Show full item recordAbstract
Background Necrotizing soft-tissue infections (NSTI) are life-threatening conditions often caused by β-hemolytic streptococci, group A streptococcus (GAS) in particular. Optimal treatment is contentious. The INFECT cohort includes the largest set of prospectively enrolled streptococcal NSTI cases to date. Methods From the INFECT cohort of 409 adults admitted with NSTI to five clinical centers in Scandinavia, patients culture-positive for GAS or Streptococcus dysgalactiae (SD) were selected. Risk factors were identified by comparison with a cohort of non-necrotizing streptococcal cellulitis. The impact of baseline factors and treatment on 90-day mortality was explored using Lasso regression. Whole-genome sequencing of bacterial isolates was used for emm typing and virulence gene profiling. Results The 126 GAS NSTI cases and 27 cases caused by SD constituted 31% and 7% of the whole NSTI cohort, respectively. When comparing to non-necrotizing streptococcal cellulitis, streptococcal NSTI was associated to blunt trauma, absence of pre-existing skin lesions, and a lower BMI. Septic shock was significantly more frequent in GAS (65%) compared to SD (41%) and polymicrobial, non-streptococcal NSTI (46%). Age, male sex, septic shock, and no administration of intravenous immunoglobulin (IVIG) were among factors associated with 90-day mortality. Predominant emm types were emm1, emm3 and emm28 in GAS and stG62647 in SD.Citation
Clin Infect Dis. 2020 Jan 10. pii: 5700429. doi: 10.1093/cid/ciaa027.Affiliation
HZI,Helmholtz-Zentrum für Infektionsforschung GmbH, Inhoffenstr. 7,38124 Braunschweig, Germany.Publisher
Oxford University Press (OUP)Journal
Clinical Infectious DiseasesPubMed ID
31923305Type
ArticleLanguage
enISSN
1537-6591ae974a485f413a2113503eed53cd6c53
10.1093/cid/ciaa027
Scopus Count
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- Creative Commons
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