[show abstract][hide abstract] ABSTRACT: OBJETIVO: Determinar uma associação entre o quadro clínico pré-operatório e os resultados das culturas de bile e da parece vesicular. CASUÍSTICA E MÉTODOS: Foram estudadas 28 variáveis considerando-se história clínica, exame físico e investigação laboratorial em 38 doentes portadores de colecistite aguda calculosa, submetidos à cirurgia de urgência. Este estudo prospectivo foi realizado em 19 meses, entre novembro de 1995 a maio de 1997. Foram realizadas culturas para agentes anaeróbios e aeróbios, em três diferentes meios de cultura (BACTEC 9240, BHI e HEMOBAC). RESULTADOS: Foram isoladas bactérias em pelo menos um meio de cultura em 68,2% dos doentes. Pela análise univariada, foram identificadas cinco variáveis pré-operatórias como preditivas de bacteriobilia: idade acima de 55 anos, temperatura diferencial axilo-retal maior do que 0,4°C, leucocitose acima de 12000 cels/mm³, neutrofilia acima de 75% e neutrófilos bastonetes acima de 4%. Devido ao pequeno tamanho da amostra, não pôde ser observada significância estatística por regressão logística, embora pudesse ser observada em 98% uma tendência para determinação pré-operatória dos indivíduos com cultura positiva por meio do modelo baseado na idade e porcentagem de neutrófilos bastonetes. Pela análise em conjunto dos fatores preditivos, pôde-se observar que doentes com mais de um fator preditivo têm uma possibilidade significantemente maior para cultura positiva, quando comparado com aqueles com fator preditivo de bacteriobilia. CONCLUSÃO: Conclui-se, portanto, que pela utilização de dados facilmente disponíveis em doentes com colecistite aguda calculosa, a bacteriobilia pode ser previsível no pré-operatório,.
[show abstract][hide abstract] ABSTRACT: to determine an association between the preoperative clinical status and the result of bile and gallbladder wall cultures.
28 variables regarding history, physical examination and labatorial 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).
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 degrees 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 yielding positive culture when compared to those with up to one predictive factor for bactibilia.
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.
Revista da Associação Médica Brasileira 47(1):70-7. · 0.77 Impact Factor
[show abstract][hide abstract] ABSTRACT: To determine the frequency, associate factors and clinical features of bacteremia in patients undergoing endoscopic retrograde cholangiopancreatography (ERCP), with or without therapeutic procedures.
Prospectively, 42 consecutives patients undergoing 46 endoscopic retrograde cholangiopancreatographies (ERCPs) from August to December 1994 were analyzed. The search for bacteremia was done by drawing 6 blood samples for cultures from peripheral blood. Two blood samples were collected before the ERCP and 4 of them after. The bottles used for cultures were Bactec bottles. The bottles were incubated in the Bactec 9240 system, and eventual bacteria detect were identificated by the manual routine of the laboratory and also with the autoScan/Microscan system.
All blood cultures obtained before the ERCPs were negatives. Bacteremia were detected after 7 endoscopic procedures. In two episodes of bacteremia, the microorganism identified (Staphylococcus epidermidis) was considered to be a contaminant. The other 5 episodes of bacteremia were considered true bacteremia (frequency- 10.9%), and the microorganisms identified were: Streptococcus viridans, Corynebacterium sp., Enterobacter cloacae, Klebsiello oxytoca and Enterobacter aerogenes. This episodes were more frequent in the blood cultures obtained immediately after the ERCPs (p < 0.05), and occurred exclusively in the patients who were not receiving antibiotics (p = 0.0192). Clinical manifestation of the episodes of bacteremia were not detected.
The episodes of bacteremia occurred exclusively in the patients who were not receiving antibiotics, were transient and completely no symptomatic.
Revista da Associação Médica Brasileira 43(4):326-34. · 0.77 Impact Factor