The results of the FilmArray® Blood Culture Identification Panel (BCID) (BioFire Diagnostics) and the culture with susceptibility testing of 70 positive blood cultures from oncologic patients were compared. The multiplex PCR assay (BCID) identified 81 of the 83 isolates (97.6%), covered by the panel. The panel produced results in significantly shorter time than standard identification methods, when counted from receiving positive blood cultures bottles to the final results. It is an accurate method for the rapid identification of pathogens and resistance genes from blood culture in oncologic patients.

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Thirty three isolates of K. pneumoniae were studied. The strains were cultured from different clinical specimens received from patients hospitalised at a Neurosurgery Unit at the Dr Jurasz University Hospital in Bydgoszcz. Production of ESBL was assessed using double disk synergy test. The genomic DNA was extracted from the strains separated by PFGE after digesting with XbaI endonuclease. Production of ESBL was detected in 81.8% of K. pneumoniae isolates. Molecular typing results revealed a great genetic diversity among K. pneumoniae isolates. All repeated PFGE patterns were detected in 12 (36.3%) K. pneumoniae isolates.

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IntroductionBacterial translocation is a migration of microorganisms and their toxins from the intestinal lumen to the mesenteric lymph nodes, blood, and abdominal organs. It can lead to local inflammatory response and a potential increase in intestinal permeability leading to systemic infections and multiple organ failure. Enteral nutrition stimulates gastrointestinal motility, increases blood flow, and improves the integration of the intestinal barrier.AimThe impact of enteral (EN) and parenteral (PN) nutrition on occurrence of bacteraemia caused by pathogens from the gastrointestinal tract.Material and methodsIt was a retrospective analysis of medical documentation of 254 patients. Microbiological tests were analysed, assessing the presence of bacteraemia or sepsis pathogens from the gastrointestinal tract. In 52 patients gastrointestinal pathogens in blood were found: 29 patients were fed enterally (I group – EN and EN + PN) and 23 only parenterally (II group – PN).ResultsThe mean length of stay in hospital until the occurrence of bacteraemia in group I was 14, and in group II it was 13 days. Mean time without EN was 4 days (first group) and 12 days (second group). Time of stay in ICU and mortality in the group of patients fed parenterally was observed: group I – 25 days, mortality 34%; group II – 37 days, mortality 56%. In the analysed group the EN and the length of the absence of this kind of feeding did not affect the occurrence of bacteraemia by gastrointestinal pathogens.ConclusionsHowever, patients fed only parenterally who had bacteraemia required a longer stay in the ICU and had a higher rate of mortality than the patients with EN.