Journal article
Impact of antibiotic pretreatment on bone biopsy yield for children with acute hematogenous osteomyelitis
Hospital pediatrics, Vol.5(6), pp.337-341
06/2015
DOI: 10.1542/hpeds.2014-0114
PMID: 26034165
Abstract
Pediatric acute hematogenous osteomyelitis (AHO) is a relatively common reason for hospitalization, but many variables require additional study, including the impact of antibiotic treatment on bone biopsy culture yield.
This was a retrospective study of children 60 days to 18 years old with AHO seen from 2011 to 2012 in whom bone biopsy cultures were obtained.
A total of 67 children had biopsies; median age was 7 years; 40 were pretreated with antibiotics. Microbiologic confirmation was obtained for 72%: in 34%, both blood and bone cultures were positive; in 33%, bone cultures alone were positive; and 4% had only positive blood cultures. There was no difference in bone biopsy cultures for children who did and did not receive antibiotics before biopsy (28/40 [70%] vs 17/27 [63%], odds ratio 1.37, 95% confidence interval 0.49-3.86). For pretreated patients, the mean duration of therapy was longer in children with negative cultures (79 vs 40 hours, P=.04). Bacteremia was seen in 26 (39%), and was more common in antibiotic-pretreated children (55% vs 15%, odds ratio 7, 95% confidence interval 2.1-24.1). Among the 41 nonbacteremic children, bone cultures provided the only microbiologic diagnosis for 22 (54%): 20 Staphylococcus aureus, 2 Streptococcus pyogenes.
In conclusion, although bone biopsy results were not affected by previous antibiotic administration, a longer duration of antibiotic therapy before bone biopsy was associated with lower culture yield. In one-third of children, only the bone biopsy resulted in an organism being isolated. As it may take longer to sterilize bone than blood, a bone biopsy/culture should be considered a crucial part of the AHO evaluation to increase diagnostic yield.
Details
- Title: Subtitle
- Impact of antibiotic pretreatment on bone biopsy yield for children with acute hematogenous osteomyelitis
- Creators
- Derek J Zhorne - Sections of Hospital MedicineMary E Altobelli - Sections of Hospital MedicineAndrea T Cruz - Emergency Medicine, and Infectious Diseases, Department of Pediatrics, Baylor College of Medicine, Houston, Texas acruz@bcm.edu
- Resource Type
- Journal article
- Publication Details
- Hospital pediatrics, Vol.5(6), pp.337-341
- DOI
- 10.1542/hpeds.2014-0114
- PMID
- 26034165
- ISSN
- 2154-1663
- eISSN
- 2154-1671
- Language
- English
- Date published
- 06/2015
- Academic Unit
- Stead Family Department of Pediatrics; Hospital Medicine
- Record Identifier
- 9984093479402771
Metrics
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