[Evaluation of ready-to-use media for blood cultures based on 1580 specimens (author's transl)].

We have compared the performance of two types of manufactured media, by making 1580 blood cultures from 250 hospitalized people with bacteremia. The results showed that, within the limits of this present study, the Bacto Tryptic Soy Broth w/SPS and Bacto Thiol Broth w/SPS (DIFCO) are better than the brain heart broth and Schaedler broth (Hemoline, BioMérieux). There was no difference in the microbial growth rate and the type of isolated bacteria with the two brands of media. The superior results obtained with the used media from Difco, as compared to the ones from BioMérieux, could be due to a difference of sensitivity of these broths.