Microorganisms isolated from blood cultures and the change of their antimicrobial susceptibility patterns in the last five years

Objective: Infections caused by bacteria growing in blood cultures are important medical problems that cause high morbidity and mortality.The aim of this study is to examine the changes in antibiotic susceptibility and the bacteria isolated from blood samples from various clinics in the five-year period and to determine the antimicrobials that can be chosen in empirical treatment in blood stream infection in our hospital.Methods: Blood samples from our laboratories were evaluated retrospectively between during 2013-2017.Samples were incubated in an automated system of BACTEC-FX(BD,USA).Conventional methods and automated systems (Phoenix,BD,USA) have been used to identify bacteria.Antibiotic susceptibilities of isolated bacteria were evaluated using the automated systems (Phoenix,BD,USA).Results: A total of 4597 bacterial reproductions that isolated from the blood samples including 1972 (42.9%) gram positive and 2625 (57.1%) gram negative were included in the study.The most frequently isolated gram positive bacteria were Staphylococcus aureus (15.3%) and the gram negative bacteria were ÖZET Amaç: Kan kültürlerinde üreyen bakterilerin neden olduğu enfeksiyonlar, yüksek morbidite ve mortaliteye neden olan önemli tıbbi problemlerdir.Bu çalışmanın amacı, beş yıllık süreçte çeşitli kliniklerden gelen kan örneklerinden izole edilen bakteriler ve antibiyotik duyarlılıklarının yıllar içerisindeki değişiminin irdelenmesi ve hastanemizde dolaşım sistemi enfeksiyonlarında ampirik tedavide seçilebilecek antimikrobiyallerin belirlenmesidir.Yöntem: 2013-2017 yılları arasında laboratuvarımıza gelen kan örnekleri retrospektif olarak taranmıştır.Örnekler BACTEC-FX (