Effect of underlying immune compromise on the manifestations and outcomes of group A streptococcal bacteremia

Document Type

Article

Publication Date

5-1-2017

Publication Title

J Infect

Keywords

Adolescent, Adult, Aged, Aged, 80 and over, Bacteremia, Child, Child, Preschool, Fasciitis, Necrotizing, Female, Humans, Immunocompromised Host, Infant, Infant, Newborn, Male, Middle Aged, Retrospective Studies, Risk Factors, Shock, Septic, Soft Tissue Infections, Streptococcal Infections, Streptococcus pyogenes, Young Adult

Abstract

BACKGROUND: Group A streptococcal bloodstream infection is the most common presentation of invasive group A streptococcal disease. We sought to determine the impact of immunosuppression on severity of disease and clinical outcomes.

METHODS: This retrospective review of 148 patients with at least one positive blood culture for Streptococcus pyogenes from 1/2003 to 3/2013 compared immunocompromised patients with those with no immunocompromise in regards to development of severe complications and mortality.

RESULTS: Twenty-five patients (17%) were immunocompromised; 123 were not. Skin and soft tissue infection occurred in 60% of immunocompromised vs. 38% of non-immunocompromised patients, p = .04. Necrotizing fasciitis and septic shock were significantly more common in immunocompromised patients, p < .0001 and .028, respectively. Mortality at 30 days was 32% in immunocompromised patients vs. 16% in non-immunocompromised patients, p = .05.

CONCLUSION: Patients who are immunocompromised are more likely to develop necrotizing fasciitis and septic shock as complications of group A streptococcal bacteremia and have a higher mortality rate than patients who are not immunocompromised.

Medical Subject Headings

Adolescent; Adult; Aged; Aged, 80 and over; Bacteremia; Child; Child, Preschool; Fasciitis, Necrotizing; Female; Humans; Immunocompromised Host; Infant; Infant, Newborn; Male; Middle Aged; Retrospective Studies; Risk Factors; Shock, Septic; Soft Tissue Infections; Streptococcal Infections; Streptococcus pyogenes; Young Adult

PubMed ID

28237623

Volume

74

Issue

5

First Page

450

Last Page

455

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