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Eur J Clin Microbiol Infect Dis. 2012 Jul;31(7):1413-8. doi: 10.1007/s10096-011-1458-9. Epub 2011 Oct 29.

A survey on the use of gentamicin in infective endocarditis.

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Service de Médecine Interne et Maladies Infectieuses, ERI 023, CHU La Milétrie, BP 577, 86021, Poitiers, France.


US and European guidelines recommend a daily divided gentamicin dose (3 mg/kg in two or three equally divided doses) for the treatment of infective endocarditis caused by staphylococci or enterococci, but once-daily dosing (3 mg/kg/day) is recommended for streptococcal endocarditis. However, studies have recommended the use of higher doses of gentamicin (4 or ≥5 mg/kg/day) administered once-daily. A survey was conducted in France by mailing a questionnaire to the 595 members of the French Infectious Disease Society regarding their gentamicin prescription patterns in infective endocarditis, focusing on the dosing regimen. The survey was answered by 137 physicians (23%). The proportions of physicians following guideline-based regimens were similar for each organism (30.9%, 38.8%, and 39.4% for staphylococci, enterococci, and streptococci, respectively [p=0.26]). In contrast, the proportions of physicians following literature-based regimens were significantly different for each organism (59.6%, 42.5%, and 27.7% for staphylococci, enterococci, and streptococci, respectively [p<0.001]). The number of years practicing and the type of practice (university vs. non-university hospital) did not influence the gentamicin dose or regimen. Although adherence to published guidelines for gentamicin administration in patients with infective endocarditis was poor, a large proportion of physicians who did not follow those guidelines used literature-based regimens.

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