PubMed İndeksli Açık & Kapalı Erişimli Yayınlar

Permanent URI for this communityhttps://hdl.handle.net/11727/10756

Browse

Filters

2020 - 20212

Settings

Subject: search.filters.subject.bacteremia

Search Results

Now showing 1 - 2 of 2
  • No Thumbnail Available
    Item
    Evaluation of extensively drug-resistant gram-negative bacteremia among solid-organ transplant recipients: a multicenter study
    (2021) Yanik Yalcin, Tugba; Azap, Ozlem; Kose, Adam; Bayindir, Yasar; Saricaoglu, Elif Mukime; Cinar, Gule; Uygun Kizmaz, Yesim; Kursun, Ebru; Aliskan, Hikmet Eda; Tezer Tekce, Yasemin; Eren Kutsoylu, Oya Ozlem; Egeli, Tufan; Ari, Alpay; Albayrak, Yurdagul; Cabadak, Hatice; Deniz, Secil; Demir Onder, Kubra; Kizilates, Filiz; Ozger, Selcuk; Guzel Tunccan, Ozlem; Haberal, Mehmet; 0000-0001-9060-3195; 0000-0002-3462-7632; 33865241; AAE-2282-2021; AAJ-8097-2021
    Background/aim: The aim of this study is to evaluate the distribution, sources, clinical features, and mortality rates of bacteremia due to evaluation of extensively drug-resistant (XDR) gram negative among solid-organ transplant (SOT) recipients. Materials and methods: A retrospective study of SOT recipients with bacteremia due to XDR gram-negative pathogens in 11 centers between 2016 and 2018 was conducted. Patients' records were evaluated. Results: Of 171 bacteremia that occurred in 164 SOT recipients, 93 (56.7%) were liver, 46 (28%) kidney, 14 (8.5%) heart, and 11 (6.7%) lung recipients. Bacteremia episodes were recorded in the first year in 63.7% of the patients (n = 109), early-onset bacteremia was recorded in 45% (n = 77) of the episodes. In multivariate analysis, catheter-associated bacteremia was an independent risk factor for 7-day mortality (p = 0.037), and early-onset bacteremia was found as an independent risk factor for 30-day mortality (p = 0.017). Conclusion: Difficult-to-treat infections due to XDR bacteria in SOT recipients shadow the success of transplantation. Central venous catheters seem to be the main risk factor. Judicious use of medical devices is of pivotal importance.
  • No Thumbnail Available
    Item
    An Investigation into Bacterial Bloodstream Infections and Antibiotic Resistance Profiles in a Tertiary Hospital for a Ten-Year Period
    (2020) Mataj, Valbona; Guney, Mustafa; Sig, Ali Korhan; Uskudar-Guclu, Aylin; Albay, Ali; Bedir, Orhan; Baysallar, Mehmet; 0000-0002-1872-028X; 32776752; AAU-6196-2020
    Background: Bloodstream infections are one of the major causes of healthcare-associated morbidity and mortality. The present study aims to investigate the prevalence of the microorganisms isolated from blood cultures and to evaluate susceptibilities to antimicrobial agents in a tertiary center, Gulhane Training and Research Hospital, Ankara, Turkey. Methods: Blood cultures (BCs) were incubated in BACTEC/9050 (Becton Dickinson, USA) (2007 - 2015) and BacT/ALERT (bio-Merieux, France) (2014 - 2016) automated systems. Phoenix (TM) 100 system (Becton Dickinson, USA) (2007 - 2014), MALDI-TOF MS (Bruker, USA) (2015 - 2016) and conventional techniques were used for the identification of isolated microorganisms. According to CLSI (2007 - 2014) and EUCAST (2015 - 2016) criteria, Kirby-Bauer disc diffusion method, Phoenix (TM) system, and broth microdilution were applied for antimicrobial susceptibility testing. Two five-year periods were statistically compared regarding antibiotic resistance. Results: From the overall evaluated 31,380 BCs, 7,367 cultures (23.5%) were positive, excluding 503 BCs (6.4%), which were interpreted as contamination. Of 7,367 isolated microorganisms, 3,680 (50.0%) were gram-negative, 3,303 (44.8%) were gram-positive bacteria, and 384 (5.2%) were fungi. Coagulase-negative staphylococci (CoNS) were predominantly isolated (n = 2,075; 28.2%) among gram-positives. E.coli (n = 978; 13.3%) was the most frequently isolated gram-negative species. Between the first and the last five-year period, three genera (Enterococcus spp., Acinetobacter spp., Streptococcus spp.) showed significant differences when isolated, and only Enterococcus spp. showed increased isolation rates. In total, 90.3% of CoNS and 32% of S. aureus were methicillin-resistant. Only 75 strains of Enterococcus spp. (12.1%) were vancomycin-resistant. ESBL was detected in 40.6% of E. coli and 30.7% of Klebsiella spp. isolates. Carbapenem resistance showed a significant increase, particularly in K. pneumoniae (> 20%). Conclusions: The findings suggest that there was a threatening condition in antimicrobial resistance rates, especially for some antimicrobials between two periods. Although antimicrobial resistance is usually associated with MRSA, carbapenem resistance, ESBL, and VRE, the problem is far beyond these definitions, consisting of not just medicine, but also commercial companies, food industry, veterinarians, and other areas.