Influence of microbiome species in hard-to-heal wounds on disease severity and treatment duration

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Authors

CHUDOBOVA Dagmar CIHALOVA Kristyna GURAN Roman DOSTALOVA Simona SMERKOVA Kristyna VESELÝ Radek GUMULEC Jaromír MASAŘÍK Michal HEGER Zbynek ADAM Vojtech KIZEK Rene

Year of publication 2015
Type Article in Periodical
Magazine / Source Brazilian Journal of Infectious Diseases
MU Faculty or unit

Faculty of Medicine

Citation
Web http://dx.doi.org/10.1016/j.bjid.2015.08.013
Doi http://dx.doi.org/10.1016/j.bjid.2015.08.013
Field Epidemiology, infectious diseases and clinical immunology
Keywords Bacterial strains; MALDI-TOF; Sequencing; Superficial wounds
Description Background Infections, mostly those associated with colonization of wound by different pathogenic microorganisms, are one of the most serious health complications during a medical treatment. Therefore, this study is focused on the isolation, characterization, and identification of microorganisms prevalent in superficial wounds of patients (n = 50) presenting with bacterial infection. Methods After successful cultivation, bacteria were processed and analyzed. Initially the identification of the strains was performed through matrix-assisted laser desorption/ionization time-of-flight mass spectrometry based on comparison of protein profiles (2–30 kDa) with database. Subsequently, bacterial strains from infected wounds were identified by both matrix-assisted laser desorption/ionization time-of-flight mass spectrometry and sequencing of 16S rRNA gene 108. Results The most prevalent species was Staphylococcus aureus (70%), and out of those 11% turned out to be methicillin-resistant (mecA positive). Identified strains were compared with patients’ diagnoses using the method of artificial neuronal network to assess the association between severity of infection and wound microbiome species composition. Artificial neuronal network was subsequently used to predict patients’ prognosis (n = 9) with 85% success. Conclusions In all of 50 patients tested bacterial infections were identified. Based on the proposed artificial neuronal network we were able to predict the severity of the infection and length of the treatment.
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