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Vancomycin resistance has no influence on outcomes of enterococcal bacteriuria⋆
Filetype[PDF - 400.64 KB]


Details:
  • Corporate Authors:
    for the CDC Prevention Epicenters Program
  • Pubmed ID:
    23998947
  • Pubmed Central ID:
    PMC4109057
  • Funding:
    5K12HD001459-13/HD/NICHD NIH HHS/United States
    DK064540-09/DK/NIDDK NIH HHS/United States
    HD001459-09/HD/NICHD NIH HHS/United States
    K12 HD001459/HD/NICHD NIH HHS/United States
    K12 RR023249/RR/NCRR NIH HHS/United States
    KL2RR024994/RR/NCRR NIH HHS/United States
    P50 DK064540/DK/NIDDK NIH HHS/United States
    U54 CK000162/CK/NCEZID CDC HHS/United States
    UL1RR024992/RR/NCRR NIH HHS/United States
  • Document Type:
  • Collection(s):
  • Description:
    Background

    Infections with vancomycin-resistant enterococci (VRE) are a growing concern in hospitals. The impact of vancomycin resistance in enterococcal urinary tract infection is not well-defined.

    Aim

    To describe the epidemiology of enterococcal bacteriuria in a hospital and compare the clinical picture and patient outcomes depending on vancomycin resistance.

    Methods

    This was a 6-month prospective cohort study of hospital patients who were admitted with or who developed enterococcal bacteriuria in a 1250-bed tertiary care hospital. We examined clinical presentation, diagnostic work-up, management, and outcomes.

    Findings

    We included 254 patients with enterococcal bacteriuria; 160 (63%) were female and median age was 65 years (range: 17–96). A total of 116 (46%) bacteriurias were hospital-acquired and 145 (57%) catheter-associated. Most patients presented with asymptomatic bacteriuria (ASB) (119;47%) or pyelonephritis (64; 25%); 51 (20%) had unclassifiable bacteriuria and 20 (8%) had cystitis. Secondary bloodstream infection was detected in 8 (3%) patients. Seventy of 119 (59%) with ASB received antibiotics (mostly vancomycin). There were 74 (29%) VRE bacteriurias. VRE and vancomycin-susceptible enterococci (VSE) produced similar rates of pyelonephritis [19 (25%) vs 45 (25%); P = 0.2], cystitis, and ASB. Outcomes such as ICU transfer [10 (14%) VRE vs 17 (9%) VSE; P = 0.3], hospital length of stay (6.8 vs 5.0 days; P = 0.08), and mortality [10 (14%) vs 13 (7%); P = 0.1] did not vary with vancomycin susceptibility.

    Conclusions

    Vancomycin resistance did not affect the clinical presentation nor did it impact patient outcomes in this cohort of inpatients with enterococcal bacteriuria. Almost half of our cohort had enterococcal ASB; more than 50% of these asymptomatic patients received unnecessary antibiotics. Antimicrobial stewardship efforts should address overtreatment of enterococcal bacteriurias.