Ampicillin plus ceftriaxone is as effective as ampicillin plus gentamicin for treating enterococcus faecalis infective endocarditis

Nuria Fernández-Hidalgo, Benito Almirante, Joan Gavaldà, Mercè Gurgui, Carmen Peña, Arístides De Alarcón, Josefa Ruiz, Isidre Vilacosta, Miguel Montejo, Nuria Vallejo, Francisco López-Medrano, Antonio Plata, Javier López, Carmen Hidalgo-Tenorio, Juan Gálvez, Carmen Sáez, José Manuel Lomas, Marco Falcone, Javier De La Torre, Xavier Martínez-LacasaAlbert Pahissa

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Abstract

Background. The aim of this study was to compare the effectiveness of the ampicillin plus ceftriaxone (AC) and ampicillin plus gentamicin (AG) combinations for treating Enterococcus faecalis infective endocarditis (EFIE).Methods. An observational, nonrandomized, comparative multicenter cohort study was conducted at 17 Spanish and 1 Italian hospitals. Consecutive adult patients diagnosed of EFIE were included. Outcome measurements were death during treatment and at 3 months of follow-up, adverse events requiring treatment withdrawal, treatment failure requiring a change of antimicrobials, and relapse.Results. A larger percentage of AC-treated patients (n = 159) had previous chronic renal failure than AG-treated patients (n = 87) (33% vs 16%, P =. 004), and AC patients had a higher incidence of cancer (18% vs 7%, P =. 015), transplantation (6% vs 0%, P =. 040), and healthcare-acquired infection (59% vs 40%, P =. 006). Between AC and AG-treated EFIE patients, there were no differences in mortality while on antimicrobial treatment (22% vs 21%, P =. 81) or at 3-month follow-up (8% vs 7%, P =. 72), in treatment failure requiring a change in antimicrobials (1% vs 2%, P =. 54), or in relapses (3% vs 4%, P =. 67). However, interruption of antibiotic treatment due to adverse events was much more frequent in AG-treated patients than in those receiving AC (25% vs 1%, P <. 001), mainly due to new renal failure (≥25% increase in baseline creatinine concentration; 23% vs 0%, P <. 001).Conclusions. AC appears as effective as AG for treating EFIE patients and can be used with virtually no risk of renal failure and regardless of the high-level aminoglycoside resistance status of E. faecalis. © 2012 The Author.
Original languageEnglish
Pages (from-to)1261-1268
JournalClinical Infectious Diseases
Volume56
Issue number9
DOIs
Publication statusPublished - 1 May 2013

Keywords

  • ampicillin plus ceftriaxone
  • Enterococcus faecalis
  • gentamicin
  • infective endocarditis
  • outcome

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    Fernández-Hidalgo, N., Almirante, B., Gavaldà, J., Gurgui, M., Peña, C., De Alarcón, A., Ruiz, J., Vilacosta, I., Montejo, M., Vallejo, N., López-Medrano, F., Plata, A., López, J., Hidalgo-Tenorio, C., Gálvez, J., Sáez, C., Lomas, J. M., Falcone, M., De La Torre, J., ... Pahissa, A. (2013). Ampicillin plus ceftriaxone is as effective as ampicillin plus gentamicin for treating enterococcus faecalis infective endocarditis. Clinical Infectious Diseases, 56(9), 1261-1268. https://doi.org/10.1093/cid/cit052