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Use of antibiotics at the emergency department

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Background

The question about rational use of antibiotics is always topical. The aim of the present research was to analyse the use of antibiotics in an emergency department (ED):

Which antibiotics are prescribed, how often and under which diagnoses? Are they appropriate and are they changed in the stationary unit? (All admitted patients are transferred to other units after initial treatment in the ED). Finally, which microbial cultures are performed before initiation of antibiotic treatment?

Methods

Retrospective analysis of 865 records on admitted patients and 1100 notes on ambulant patients from the ED at Køge Hospital, from October to December 2009. Doctors were not informed beforehand about the subsequent analysis.

To evaluate the choice of antibiotic we used the national recommendations (www.medicin.dk). If any doubt, we used the regional department of microbiology at Slagelse Hospital as reference.

Results

Antibiotics were prescribed to 9% of admitted patients. Main diagnoses were pneumonia (39%), septicaemia/sepsis (20%) and urinary tract infections (UTI's) (14%). The most frequently used antibiotics were cefuroxim and benzylpenicillin intravenously (alone or in combination with other antibiotics).

3% of ambulant patients received antibiotics, mainly because of infected or potentially infected skin lesions (91%). Most received tablets of phenoxymethylpenicillin, and the doses varied considerably.

In 100% of skin infections, 90% of pneumonia cases, 75% of septicaemia/sepsis cases and 36% of UTI's the choice of antibiotics was in accordance with national recommendations.

Sputum culture was made in 7% of pneumonia cases, urine cultures in 60% of cases with UTI's. Blood cultures were generally performed with a high frequency.

48 hour follow up showed that in 81% of cases, treatment was not substantially changed in the stationary unit.

Conclusion

Focus on appropriate microbial cultures and correct choice and doses of antibiotics needs to be increased. Treatment of UTI's has to be reconsidered, as use of cefuroxim was high among these patients. Cefalosporins select ESBL-producing bacteria, and their use needs to be reduced to a minimum. Specific local guidelines for the management of infected patients are in progress, and after implementation of these we will perform a new analysis to assess the effect.

Author information

Correspondence to Line Damsgaard.

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Open Access This article is published under license to BioMed Central Ltd. This is an Open Access article is distributed under the terms of the Creative Commons Attribution 2.0 International License (https://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Keywords

  • Pneumonia
  • Emergency Department
  • Urinary Tract Infection
  • Blood Culture
  • Infected Patient