Audit of antibiotic use in a Brazilian University Hospital
AUTOR(ES)
Fonseca, Laura Guimarães, Conterno, Lucieni de Oliveira
FONTE
Brazilian Journal of Infectious Diseases
DATA DE PUBLICAÇÃO
2004-08
RESUMO
A cohort study was carried out at the Marilia Medical School Hospital. In the first phase the pattern of antibiotic use was evaluated. Antibiotics were prescribed for 55.4% of the patients; antibiotic combinations were used in 43%. Therapeutic use of antibiotics was considered inadequate in 27%. Respiratory and skin infections were the most frequently diagnosed. In up to 31% of the cases the treatment of respiratory infections was considered inadequate. The surgical use of antibiotic prophylaxis was evaluated in the second phase. Prophylaxis was indicated in 73.2% of the surgeries. The antibiotics most used for prophylaxis were first generation cephalosporins. In 78.9% of the surgeries, the antibiotic was correctly chosen. In 15.9% of the surgeries, the initial antibiotic administration was correctly timed. The use of antibiotics in the post-operative period was appropriate in 29.8% of the cases. The independent risk factors for surgical site infection (SSI), as determined by logistic regression analysis adjusted to class of wound risk, were the choice of antibiotic to be used prophylactically and the duration of antibiotic treatment in the post-operative period. Those who received appropriate prophylactic antibiotics had a lower rate of SSI than those who received innapropriated antibiotics [RR=0.49/95%; CI=0.25-0.90]. Patients who received prophylactic antibiotics correctly in the post-operative period had a lower risk of SSI than those who did not [RR=0.21/95%; CI=0.70-0.63]. The mean length of hospital stay was shorter among patients whose prophylactic treatment was correctly employed than among for which it was not [6.1 (±9.8) and 11.1 (±13.5) days, p=0.25].
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