Abstract
Purpose
Enterococci are a common cause of bacteremia in immunocompromised patients. Although the increase of vancomycin-resistant enterococci (VRE) makes appropriate antibiotic therapy difficult, clinical characteristics of enterococcal bacteremia and the impact of VRE infection on outcomes have rarely been reported in immunocompromised children.
Methods
We enrolled children and adolescents (< 19 years of age) with underlying malignancies who were diagnosed with enterococcal bacteremia during febrile neutropenia between 2010 and 2017. Medical records of the enrolled children were retrospectively reviewed to evaluate the clinical characteristics of enterococcal bacteremia and impact of VRE infection on outcomes.
Results
Thirty-six episodes of enterococcal bacteremia were identified in 30 patients. VRE infection was identified in 11 episodes (30.6%); the 7- and 30-day mortalities were 27.8% and 44.4%, respectively. Acute lymphoblastic leukemia (50.0%) and acute myeloid leukemia (30.6%) were the most common underlying disorders. Three (8.3%) of the patients were in complete remission, and palliative and reinduction chemotherapies were administered in 47.2% and 36.1% of episodes, respectively. Empirical antibiotic therapy was appropriate in 64.0% of patients with vancomycin-susceptible enterococcal infection and in none of the VRE-infected patients (p = 0.001). However, the 30-day mortality was not significantly different between the two patient groups (44.0% vs. 45.5%, p = 1.000).
Conclusions
Most episodes of enterococcal bacteremia occurred in advanced stages of underlying malignancies, and still showed high mortality. The prognosis seemed to be related to the underlying disease condition rather than vancomycin resistance of the isolated enterococci, although the number of enrolled patients was small.
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References
English BK, Shenep JL. Enterococcal and viridans streptococcal infections. In: Cherry JD, Harrison GJ, Kaplan SL, Steinbach WJ, Hotez PJ, editors. Feigin and Cherry’s textbook of pediatric infectious diseases. 7th edn. Philadelphia: Elsvier; 2014. pp. 1170–97.
Hoge CW, Adams J, Buchanan B, Sears SD. Enterococcal bacteremia: to treat or not to treat, a reappraisal. Rev Infect Dis. 1991;13:600–5.
Maki DG, Agger WA. Enterococcal bacteremia: clinical features, the risk of endocarditis, and management. Medicine (Baltimore). 1988;67:248–69.
Christie C, Hammond J, Reising S, Evans-Patterson J. Clinical and molecular epidemiology of enterococcal bacteremia in a pediatric teaching hospital. J Pediatr. 1994;125:392–9.
Gray J, Marsh PJ, Stewart D, Pedler SJ. Enterococcal bacteraemia: a prospective study of 125 episodes. J Hosp Infect. 1994;27:179–86.
Mikulska M, Viscoli C, Orasch C, Livermore DM, Averbuch D, Cordonnier C, et al. Aetiology and resistance in bacteraemias among adult and paediatric haematology and cancer patients. J Infect. 2014;68:321–31.
Lee JH, Kim SK, Kim SK, Han SB, Lee JW, Lee DG, et al. Increase in antibiotic-resistant gram-negative bacterial infections in febrile neutropenic children. Infect Chemother. 2016;48:181–9.
Shay DK, Maloney SA, Montecalvo M, Banerjee S, Wormser GP, Arduino MJ, et al. Epidemiology and mortality risk of vancomycin-resistant enterococcal bloodstream infections. J Infect Dis. 1995;172:993–1000.
Theilacker C, Jonas D, Huebner J, Bertz H, Kern WV. Outcomes of invasive infection due to vancomycin-resistant Enterococcus faecium during a recent outbreak. Infection. 2009;37:540–3.
Edmond MB, Ober JF, Weinbaum DL, Pfaller MA, Hwang T, Sanford MD, et al. Vancomycin-resistant Enterococcus faecium bacteremia: risk factors for infection. Clin Infect Dis. 1995;20:1126–33.
Singh-Naz N, Sleemi A, Pikis A, Patel KM, Campos JM. Vancomycin-resistant Enterococcus faecium colonization in children. J Clin Microbiol. 1999;37:413–6.
Tornieporth NG, Roberts RB, John J, Hafner A, Riley LW. Risk factors associated with vancomycin-resistant Enterococcus faecium infection or colonization in 145 matched case patients and control patients. Clin Infect Dis. 1996;23:767–72.
Lucas GM, Lechtzin N, Puryear DW, Yau LL, Flexner CW, Moore RD. Vancomycin-resistant and vancomycin-susceptible enterococcal bacteremia: comparison of clinical features and outcomes. Clin Infect Dis. 1998;26:1127–33.
Peel T, Cheng AC, Spelman T, Huysmans M, Spelman D. Differing risk factors for vancomycin-resistant and vancomycin-sensitive enterococcal bacteraemia. Clin Microbiol Infect. 2012;18:388–94.
Lautenbach E, Bilker WB, Brennan PJ. Enterococcal bacteremia: risk factors for vancomycin resistance and predictors of mortality. Infect Control Hosp Epidemiol. 1999;20:318–23.
Prematunge C, MacDougall C, Johnstone J, Adomako K, Lam F, Robertson J, et al. VRE and VSE bacteremia outcomes in the era of effective VRE Therapy: a systematic review and meta-analysis. Infect Control Hosp Epidemiol. 2016;37:26–35.
Vergis EN, Hayden MK, Chow JW, Snydman DR, Zervos MJ, Linden PK, et al. Determinants of vancomycin resistance and mortality rates in enterococcal bacteremia. a prospective multicenter study. Ann Intern Med. 2001;135:484–92.
Bhavnani SM, Drake JA, Forrest A, Deinhart JA, Jones RN, Biedenbach DJ, et al. A nationwide, multicenter, case-control study comparing risk factors, treatment, and outcome for vancomycin-resistant and -susceptible enterococcal bacteremia. Diagn Microbiol Infect Dis. 2000;36:145–58.
DiazGranados CA, Jernigan JA. Impact of vancomycin resistance on mortality among patients with neutropenia and enterococcal bloodstream infection. J Infect Dis. 2005;191:588–95.
Cho SY, Lee DG, Choi SM, Kwon JC, Kim SH, Choi JK, et al. Impact of vancomycin resistance on mortality in neutropenic patients with enterococcal bloodstream infection: a retrospective study. BMC Infect Dis. 2013;13:504.
Todeschini G, Tecchio C, Borghero C, D’Emilio A, Pegoraro E, de Lalla F, et al. Association between Enterococcus bacteraemia and death in neutropenic patients with haematological malignancies. J Infect. 2006;53:266–73.
Han SH, Chin BS, Lee HS, Jeong SJ, Choi HK, Kim CO, et al. Vancomycin-resistant enterococci bacteremia: risk factors for mortality and influence of antimicrobial therapy on clinical outcome. J Infect. 2009;58:182–90.
Kosack A, Riedel E, Kiehn TE, Small TN, Wexler LH, Dunkel IJ. Vancomycin-resistant enterococcus in pediatric oncology patients: an analysis of potential consequences of colonization and infection. Pediatr Blood Cancer. 2009;52:300–2.
Tamma PD, Hsu AJ. Optimizing therapy for vancomycin-resistant enterococcal bacteremia in children. Curr Opin Infect Dis. 2014;27:517–27.
Lee DG, Kim SH, Kim SY, Kim CJ, Park WB, Song YG, et al. Evidence-based guidelines for empirical therapy of neutropenic fever in Korea. Korean J Intern Med. 2011;26:220–52.
Turner D, Cheifetz I. Shock. In: Kliegman RM, Stanton BF, St. Geme JW, Schor NF, editors. Nelson textbook of pediatrics. 20th edn. Philadelphia: Elsevier; 2016. pp. 516–28.
Sreedharan R, Avner E. Renal failure. In: Kliegman RM, Stanton BF, St. Geme JW, Schor NF, editors. Nelson textbook of pediatrics. 20th edn. Philadelphia: Elsevier; 2016. pp. 2539–47.
Suchy F. Fulminant hepatic failure. In: Kliegman RM, Stanton BF, St. Geme JW, Schor NF, editors. Nelson textbook of pediatrics. 20th edn. Philadelphia: Elsevier; 2016. pp. 1966–8
Satwani P, Freedman JL, Chaudhury S, Jin Z, Levinson A, Foca MD, et al. A multicenter study of bacterial blood stream infections in pediatric allogeneic hematopoietic cell transplantation recipients: the role of acute gastrointestinal graft-versus-host disease. Biol Blood Marrow Transplant. 2017;23:642–7.
Almyroudis NG, Osawa R, Samonis G, Wetzler M, Wang ES, McCarthy PL, et al. Discontinuation of systematic surveillance and contact precautions for vancomycin-resistant Enterococcus (VRE) and its impact on the incidence of VRE faecium bacteremia in patients with hematologic malignancies. Infect Control Hosp Epidemiol. 2016;37:398–403.
Erlandson KM, Sun J, Iwen PC, Rupp ME. Impact of the more-potent antibiotics quinupristin-dalfopristin and linezolid on outcome measure of patients with vancomycin-resistant Enterococcus bacteremia. Clin Infect Dis. 2008;46:30–6.
McKinnell JA, Patel M, Shirley RM, Kunz DF, Moser SA, Baddley JW. Observational study of the epidemiology and outcomes of vancomycin-resistant Enterococcus bacteraemia treated with newer antimicrobial agents. Epidemiol Infect. 2011;139:1342–50.
Kamboj M, Chung D, Seo SK, Pamer EG, Sepkowitz KA, Jakubowski AA, et al. The changing epidemiology of vancomycin-resistant Enterococcus (VRE) bacteremia in allogeneic hematopoietic stem cell transplant (HSCT) recipients. Biol Blood Marrow Transpl. 2010;16:1576–81.
Vydra J, Shanley RM, George I, Ustun C, Smith AR, Weisdorf DJ, et al. Enterococcal bacteremia is associated with increased risk of mortality in recipients of allogeneic hematopoietic stem cell transplantation. Clin Infect Dis. 2012;55:764–70.
Noskin GA, Peterson LR, Warren JR. Enterococcus faecium and Enterococcus faecalis bacteremia: acquisition and outcome. Clin Infect Dis. 1995;20:296–301.
Hayakawa K, Marchaim D, Martin ET, Tiwari N, Yousuf A, Sunkara B, et al. Comparison of the clinical characteristics and outcomes associated with vancomycin-resistant Enterococcus faecalis and vancomycin-resistant E. faecium bacteremia. Antimicrob Agents Chemother. 2012;56:2452–8.
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This study was approved by the Institutional Review Board of Seoul St. Mary’s Hospital, under a waiver of the requirement for obtaining informed consent (Approval number: KC18RESI0231).
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Bae, KS., Shin, J.A., Kim, S.k. et al. Enterococcal bacteremia in febrile neutropenic children and adolescents with underlying malignancies, and clinical impact of vancomycin resistance. Infection 47, 417–424 (2019). https://doi.org/10.1007/s15010-018-1260-z
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DOI: https://doi.org/10.1007/s15010-018-1260-z