Hostname: page-component-cd9895bd7-gbm5v Total loading time: 0 Render date: 2024-12-22T23:33:59.915Z Has data issue: false hasContentIssue false

The Emergence of Decreased Susceptibility to Vancomycin in Staphylococcus epidermidis

Published online by Cambridge University Press:  02 January 2015

Denise O. Garrett*
Affiliation:
Hospital Infections Program, National Center for Infectious Diseases, Centers for Disease Control and Prevention, Atlanta, Georgia
Elise Jochimsen
Affiliation:
Hospital Infections Program, National Center for Infectious Diseases, Centers for Disease Control and Prevention, Atlanta, Georgia
Kate Murfitt
Affiliation:
Infectious Diseases Physicians Inc, Fairfax, Virginia
Bertha Hill
Affiliation:
Hospital Infections Program, National Center for Infectious Diseases, Centers for Disease Control and Prevention, Atlanta, Georgia
Sigrid McAllister
Affiliation:
Hospital Infections Program, National Center for Infectious Diseases, Centers for Disease Control and Prevention, Atlanta, Georgia
Pat Nelson
Affiliation:
Infectious Diseases Physicians Inc, Fairfax, Virginia
Richard V. Spera
Affiliation:
Infectious Diseases Physicians Inc, Fairfax, Virginia
Richard K. Sall
Affiliation:
Infectious Diseases Physicians Inc, Fairfax, Virginia
Fred C. Tenover
Affiliation:
Hospital Infections Program, National Center for Infectious Diseases, Centers for Disease Control and Prevention, Atlanta, Georgia
Judy Johnston
Affiliation:
Dade MicroScan Inc, West Sacramento, California
Barbara Zimmer
Affiliation:
Dade MicroScan Inc, West Sacramento, California
William R. Jarvis
Affiliation:
Hospital Infections Program, National Center for Infectious Diseases, Centers for Disease Control and Prevention, Atlanta, Georgia
*
Hospital Infections Program, Centers for Disease Control and Prevention, Mail Stop E69, 1600 Clifton Rd, Atlanta, GA 30333

Abstract

Background:

Coagulase-negative staphylococci (CNS) are the major cause of nosocomial bloodstream infection. Emergence of vancomycin resistance among CNS is a serious public health concern, because CNS usually are multidrug-resistant, and glycopeptide antibiotics, among which only vancomycin is available in the United States, are the only remaining effective therapy. In this report, we describe the first bloodstream infection in the United States associated with a Staphylococcus epidermidis strain with decreased susceptibility to vancomycin.

Methods:

We reviewed the hospital's microbiology records for all CNS strains, reviewed the patient's medical and laboratory records, and obtained all available CNS isolates with decreased susceptibility to vancomycin. Blood cultures were processed and CNS isolates identified by using standard methods; antimicrobial susceptibility was determined by using minimum inhibitory concentration (MIC) and disk-diffusion methods. Nares cultures were obtained from exposed healthcare workers (HCWs) to identify possible colonization by CNS with decreased susceptibility to vancomycin.

Results:

The bloodstream infection by an S epidermidis strain with decreased susceptibility to vancomycin occurred in a 49-year-old woman with carcinoma. She had two blood cultures positive for CNS; both isolates were S epidermidis. Although susceptible to vancomycin by the disk-diffusion method (16-17 mm), the isolates were intermediate by MIC (8-6 μg/mL). The patient had received an extended course of vancomycin therapy; she died of her underlying disease. No HCW was colonized by CNS with decreased susceptibility to vancomycin.

Conclusions:

This is the first report in the United States of bloodstream infection due to S epidermidis with decreased susceptibility to vancomycin. Contact precautions likely played a role in preventing nosocomial transmission of this strain, and disk-diffusion methods may be inadequate to detect CNS with decreased susceptibility to vancomycin.

Type
Original Articles
Copyright
Copyright © The Society for Healthcare Epidemiology of America 1999

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

1. Shulman, JA, Nahmias, AJ. Staphylococcal infection: clinical aspects. In: Cohen, JO, ed. The Staphylococci. New York, NY: Wiley-Interscience; 1972:457502.Google Scholar
2. Banerjee, SN, Emori, TG, Culver, DH, Gaynes, RP, Jarvis, WR, Horan, T, et al. Secular trends in nosocomial primary bloodstream infections in the United States, 1980-1989. National Nosocomial Infections Surveillance System. Am J Med 1991;91(3B):86S89S.Google Scholar
3. Schaberg, DR, Culver, DH, Gaynes, RP. Major trends in the microbial etiology of nosocomial infection. Am J Med 1991;91 (3B):72S75S.CrossRefGoogle ScholarPubMed
4. Emory, TG, Gaynes, RP. An overview of nosocomial infections, including the role of the microbiology laboratory. Clin Microbiol Rev 1993;6: 428442.CrossRefGoogle Scholar
5. Martin, MA, Pfaller, MA, Wenzel, RP. Coagulase-negative staphylococcal bacteremia. Mortality and hospital stay. Ann Intern Med 1989;110:916.Google Scholar
6. Karchmer, AW, Archer, GL, Dismukes, WE. Staphylococcus epidermidis causing prosthetic valve endocarditis: microbiologic and clinical observations as guide to therapy. Ann Intern Med 1983;98:447455.CrossRefGoogle Scholar
7. Archer, GL, Tenenbaum, MJ. Antibiotic resistant Staphylococcus epidermidis in patients undergoing cardiac surgery. Antimicrob Agents Chemother 1980;17:269272.Google Scholar
8. Griffith, RS. Vancomycin use-an historical review. J Antimicrob Chemother 1988;32:2426.Google Scholar
9. Watanakunakorn, C. In-vitro induction of resistance in coagulase-negative staphylococci to vancomycin and teicoplanin. J Antimicrob Chemother 1988;22:321324.Google Scholar
10. Hancock, R, Fitz-James, PC. Some differences in the action of penicillin, bacitracin, and vancomycin on Bacillus megaterium . J Bacteriol 1964;87:10441050.Google Scholar
11. Jordan, DC, Inniss, WE. Selective inhibition of ribonucleic acid synthesis in Staphylococcus aureus by vancomycin. Nature 1959;184:18941895.Google Scholar
12. Goldstein, FW, Coutrot, A, Sieffer, A, Acar, JF. Percentages and distributions of teicoplanin- and vancomycin-resistant strains among coagulase-negative staphylococci. Antimicrob Agents Chemother 1990;34:899900.CrossRefGoogle ScholarPubMed
13. Veach, LA, Pfaller, MA, Barrett, M, Koontz, FP, Wenzel, RP. Vancomycin resistance in Staphylococcus haemolyticus causing colonization and bloodstream infection. J Clin Microbiol 1990;28:20642068.CrossRefGoogle ScholarPubMed
14. Schwalbe, RS, Stapleton, JT, Gilligan, PH. Emergence of vancomycin resistance in coagulase-negative staphylococci. N Engl J Med 1987;316:927931.Google Scholar
15. Schwalbe, RS, Ritz, WJ, Verma, PR, Barranco, EA, Gilligan, PH. Selection for vancomycin resistance in clinical isolates of Staphylococcus haemolyticus . J Infect Dis 1990;161:4551.Google Scholar
16. Tuazon, CU, Miller, H. Clinical and microbiologic aspects of serious infections caused by Staphylococcus epidermidis . Scand J Infect Dis 1983;15:347360.CrossRefGoogle ScholarPubMed
17. Cherubin, CE, Corrado, ML, Sierra, MF, Gombert, ME, Shulman, M. Susceptibility of gram-positive cocci to various antibiotics including cefotaxime, moxalactam, and N-formimidoyl thienamycin. Antimicrob Agents Chemother 1981;20:553555.Google Scholar
18. Sanyal, D, Johnson, AP, George, RC, Cookson, BD, Williams, AJ. Peritonitis due to vancomycin-resistant Staphylococcus epidermidis . Lancet 1991;337:54.CrossRefGoogle ScholarPubMed
19. Krcmery, V, Trupl, J, Drgona, L, Lacka, J, Kukuckova, E, Oravcova, E. Nosocomial bacteremia due to vancomycin-resistant Staphylococcus epidermidis in four patients with cancer, neutropenia, and previous treatment with vancomycin. Eur J Clin Microbiol Infect Dis 1996;15:259261.Google Scholar
20. Kloos, WE, Bannerman, TL. Staphylococcus and Micrococcus. In: Manual of Clinical Microbiology, 6th ed. Washington, DC: American Society for Microbiology; 1995:282298.Google Scholar
21. National Committee for Clinical Laboratory Standards. Second Performance Standards for Antimicrobic Disk Susceptibility Tests. Approved standard MZ-A25. Villanova, PA NCCLS; 1982.Google Scholar
22. Washington JA, II, Sutter, VL. Dilution susceptibility test: agar and macro-broth dilution procedures. In: Lennette, EA, Ballows, A, Hausler, WJ Jr, Truant, JP, eds. Manual of Clinical Microbiology. 3rd ed. Washington, DC: American Society for Microbiology; 1980:453458.Google Scholar
23. National Committee for Clinical Laboratory Standards. Methods for Dilution Antimicrobial Susceptibility Tests for Bacteria That Grow Aerobically. 4th ed. Approved standard M7-A4. Wayne, PA NCCLS; 1997.Google Scholar
24. National Committee for Clinical Laboratory Standards. Performance Standards for Antimicrobial Disk Susceptibility Tests. 6th ed. Approved standard M2-A6. Wayne, PA: NCCLS; 1997.Google Scholar
25. Clark, NC, Cooksey, RC, Hill, BC, Swenson, JM, Tenover, FC. Characterization of glycopeptide-resistant enterococci from US hospitals. Antimicrob Agents Chemother 1993;37:23112317.Google Scholar
26. Satake, S, Clark, N, Rimland, D, Nolte, FS, Tenover, FC. Detection of vancomycin-resistant enterococci in fecal samples by using the polymerase chain reaction. J Clin Microbiol 1997;35:23252330.CrossRefGoogle Scholar
27. Bannerman, TL, Hancock, GA, Tenover, FC, Miller, JM. Pulsed-field gel electrophoresis as a replacement for bacteriophage typing of Staphylococcus aureus . J Clin Microbiol 1995;33:551555.CrossRefGoogle ScholarPubMed
28. Sattler, FR, Foderano, JB, Aber, RC. Staphylococcus epidermidis bacteremia associated with vascular catheters: an important cause of febrile morbidity in hospitalized patients. Infect Control 1984;5:279283.Google Scholar
29. Smith, DJ, Kaplan, RL, Landau, W, Trenholme, GM. Speciation and antibiotic susceptibility patterns of coagulase-negative staphylococci. Eur J Clin Microbiol 1982;1:228232.CrossRefGoogle ScholarPubMed
30. Swenson, JM, Hill, BC, Thornsberry, C. Problems with the disk diffusion test for detection of vancomycin resistance in enterococci. J Clin Microbiol 1989;27:21402142.CrossRefGoogle ScholarPubMed
31. Centers for Disease Control and Prevention. Staphylococcus aureus with reduced susceptibility to vancomycin-United States, 1997. MMWR 1997;46:756766.Google Scholar
32. Centers for Disease Control and Prevention. Update: Staphylococcus aureus with reduced susceptibility to vancomycin-United States, 1997. MMWR 1997;46:813815.Google Scholar
33. Smith, TL, Pearson, M, Tenover, F, Jarvis, WR. Emergence of vancomycin resistance in Staphylococcus aureus: epidemiology and clinical significance. N Engl J Med. In press.Google Scholar