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[Cerebral infections due to anaerobic organisms (author's transl)].

Most of intracranial suppurations, especially those from E.N.T. origin, are secondary to anaerobic germs, which can be cocci Gram (+) or Gram (-), in association or not with aerobic bacteria. 97 cases have been observed between 1968 and 1979 at Lariboisière Hospital. When the bacteriological study was realised in correct conditions, anaerobic germs were found in more than 60% of cases, and less than 10 % of cultures were negative. A lower mortality (11 %) and morbidity (34 %) rates follow an improvement in bacteriological diagnosis. Anaerobic bacteria stay very susceptible to antibiotics, such as the association Penicilline-Metronidazole; now, we prescribe immediately such a therapeutic, and eventually modify it after having received the antibiogram. As a conclusion, the treatment of brain abscesses could be simplified: CT scan and a rigourous bacteriology make possible an accurate control and follow-up of the suppuration after simple punction.