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Revista da Associação Médica Brasileira

Print version ISSN 0104-4230On-line version ISSN 1806-9282


LINHARES, M.M. et al. Study of preoperative risk factors for bactibilia in patients with calculosis acute cholecystitis. Rev. Assoc. Med. Bras. [online]. 2001, vol.47, n.1, pp.70-77. ISSN 0104-4230.

OBJECTIVE: to determine an association between the preoperative clinical status and the result of bile and gallbladder wall cultures. MATERIAL AND METHODS: 28 variables regarding history, physical examination and laboratorial assessment in 38 patients with acute calculosis cholecystitis submitted to urgency surgery were prospectively studied during a 19-month period, between November 1995 and May 1997. Cultures for aerobic and anaerobic agents from both the gallbladder wall and the bile were performed, in three different culture media (BACTEC 9240, BHI and HEMOBAC). RESULTS: bacteria were isolated in at least one culture medium, in 68.2% of the patients. At univariate analysis, five preoperative factors were identified as predictors of bactibilia: over 55 years of age, a greater than 0.4°C difference in the axillary-rectal temperature, a greater than 12.000 cels/m3 blood leukocyte count, a greater than 75% neutrophil percentage and a greater than 4% rod neutrophil percentage. Owing to the small sample size, statistical significance of the series could not be noted by logistic regression, although a trend to preoperative determination could be observed in 98% of the subjects with positive culture, by means of the model based on age and percentage of rod neutrophil. By analyzing predictive factors jointly, it was noted that patients with more than one predictive factor have a significantly greater possibility to yelding positive culture when compared to those with up to one predictive factor for bactibilia. CONCLUSIONS: We concluded that, in patients with acute calculosis cholecystitis, bactibilia may be predicted yet at the preoperative period, by using simple and easily obtained data.

Keywords : Bactibilia; Acute Cholecystitis; Risk Factors.

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