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Background: bloodstream infections have a high morbidity worldwide and a significant incidence in mortality.Objective: to characterize blood culture samples collected and processed at the microbiology laboratory of the “Dr. Ambrosio Grillo Portuondo” Medico-Chirurgical Hospital of Santiago de Cuba, from January to June 2020.Methods: an observational, descriptive and retrospective study was carried out, with 195 blood samples inoculated in blood culture bottles, from patients admitted to the aforementioned institution and during the period herein declared. Positivity, hospital department in which the sample was taken, isolated microorganisms and antibiogram were assessed.Results: the percentage of positive blood cultures was 28,2 %, the highest number was obtained at the department of internal medicine (43,5 %), followed by the intensive care unit (30,2 %). Of the 55 isolated microorganisms, there was a prevalence of negative coagulase Staphylococcus (32,7 %), Staphylococcus aureus (20 %), and Klebsiella spp (14,5 %). Staphylococci showed total resistance to penicillin and oxacillin (100 %), followed by ceftriaxone and cefotaxime, higher than 80 %. Klebsiella spp had a high resistance to cefotaxime (75 %), amikacin and cephalexin (62,5 % in each case) and ceftriazone (50 %).Conclusions: the frequency of microbiological isolates in blood cultures was low and they showed high resistance to beta-lactam antibiotics. |
