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  1. Article ; Online: What's New in Prevention of Invasive Fungal Diseases during Hospital Construction and Renovation Work: An Overview.

    Mareković, Ivana

    Journal of fungi (Basel, Switzerland)

    2023  Volume 9, Issue 2

    Abstract: The goal of the overview was to give insight into the recent data of invasive fungal diseases (IFDs) associated with construction and renovation in healthcare settings as well as the recent evidence about available prevention and infection control ... ...

    Abstract The goal of the overview was to give insight into the recent data of invasive fungal diseases (IFDs) associated with construction and renovation in healthcare settings as well as the recent evidence about available prevention and infection control measures. The number of studies describing IFD outbreaks associated with construction or renovation is on the rise again. Applying adequate prevention measures is still a challenge not just for healthcare workers but also for architects and construction workers as well. The role of multidisciplinary teams in the planning and monitoring of prevention measures cannot be overemphasized. Dust control is an inevitable part of every prevention plan. HEPA filters are helpful in the prevention of fungal outbreaks in hematologic patients, but further studies are needed to clarify the extent in which they contribute as specific control measures. The cut-off value for a "threating" level of fungal spore contamination still remains to be defined. The value of antifungal prophylaxis is difficult to assess because other preventive measures are simultaneously applied. Recommendations are still based on few meta-analyses, a large number of descriptive reports, and the opinion of respective authorities. Outbreak reports in the literature are a valuable resource and should be used for education as well as for preparing outbreak investigations.
    Language English
    Publishing date 2023-01-23
    Publishing country Switzerland
    Document type Journal Article ; Review
    ZDB-ID 2784229-0
    ISSN 2309-608X ; 2309-608X
    ISSN (online) 2309-608X
    ISSN 2309-608X
    DOI 10.3390/jof9020151
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: CAN IgG ANTIBODIES DIRECTED AGAINST DIFFERENT TARGETS SOLVE THE PROBLEM OF FALSE-POSITIVE RESULTS IN SARS-CoV-2 SEROLOGY?

    Beader, Nataša / Mareković, Ivana

    Acta clinica Croatica

    2022  Volume 60, Issue 4, Page(s) 765–768

    Abstract: In addition to RT-PCR assays, serology testing that has been recognized as a useful tool to assess the spread of infection in the population is considered successful and important strategy in the control of the global pandemic of SARS-CoV-2 infection. ... ...

    Abstract In addition to RT-PCR assays, serology testing that has been recognized as a useful tool to assess the spread of infection in the population is considered successful and important strategy in the control of the global pandemic of SARS-CoV-2 infection. Now, a great number of manufacturers offer their serologic tests on the market. When interpretating the results, the rate of seroprevalence should be taken in consideration because it may influence the positive predictive value, as well as cross-reactivity with other coronaviruses in case of assays with poorly designed antigens. We present results of 11 patients with different clinical background and tested with two different serologic tests, DIAPRO (ELISA; Sesto San Giovanni, Italy) and VIDAS (ELFA; BioMerieux, Marcy I'Etoile, France). The results obtained by the former test showed ten of these patients to be IgG positive and one patient was IgG weakly positive with different confidence index. The latter test discriminated positive results with medium confidence index on the former test as negative. The results obtained with two serology tests were concordant with the observation that the results with medium confidence index may indicate cross-reactivity.
    MeSH term(s) Antibodies, Viral ; COVID-19/diagnosis ; COVID-19/epidemiology ; COVID-19 Testing ; Humans ; Immunoglobulin G ; SARS-CoV-2 ; Sensitivity and Specificity ; Seroepidemiologic Studies
    Chemical Substances Antibodies, Viral ; Immunoglobulin G
    Language English
    Publishing date 2022-06-06
    Publishing country Croatia
    Document type Journal Article
    ZDB-ID 1478635-7
    ISSN 1333-9451 ; 0353-9466
    ISSN (online) 1333-9451
    ISSN 0353-9466
    DOI 10.20471/acc.2021.60.04.25
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: Evaluation and clinical impact of MALDI Biotyper Mycobacteria Library v6.0 for identification of nontuberculous mycobacteria by MALDI‐TOF mass spectrometry

    Markanović, Manda / Makek, Mateja Janković / Glodić, Goran / Kuliš, Tomislav / Mareković, Ivana

    Journal of Mass Spectrometry. 2023 Apr., v. 58, no. 4 p.e4915-

    2023  

    Abstract: Major challenges in the identification of non‐tuberculous mycobacteria (NTM) by MALDI‐TOF MS include protein extraction protocol and updating of the NTM database. The aim of this study was to evaluate MALDI Biotyper Mycobacteria Library v6.0 (Bruker ... ...

    Abstract Major challenges in the identification of non‐tuberculous mycobacteria (NTM) by MALDI‐TOF MS include protein extraction protocol and updating of the NTM database. The aim of this study was to evaluate MALDI Biotyper Mycobacteria Library v6.0 (Bruker Daltonics GmbH, Bremen, Germany) for identification of clinical NTM isolates and its impact on clinical management. NTM isolates cultivated from clinical samples in 101 patients were identified simultaneously by PCR‐reverse hybridization (Hain Lifescience GmbH, Nehren, Germany) as a routinely used reference molecular method and using MALDI Biotyper Microflex LT/SH after protein extraction. Each isolate was applied to eight spots, and mean scores were used in analysis. MALDI‐TOF MS obtained correct identification to the species level for 95 (94.06%) NTM isolates. The majority of correctly identified isolates (92/95; 96.84%) were identified with high‐confidence score of ≥1.80 and only 3.16% (3/95) with a score of <1.80. Mean value ± SD of RGM NTM isolates (2.127 ± 0.172) was statistically significant higher in comparison to SGM NTM isolates (2.027 ± 0.142) with a p value of 0.007. In comparison to PCR‐reverse hybridization, discordant identification results by MALDI‐TOF MS were found in six (6/101; 5.94%) NTM isolates for which clinical data were analyzed. We demonstrated a high confidence NTM identifications using Mycobacterium Library v 6.0 on routine clinical isolates. This is the first study that analyzed MALDI‐TOF MS identification results of NTM isolates in the context of clinical data, and it showed that MALDI‐TOF MS with its updated databases could help clarify the epidemiology, clinical characteristics, and course of infections caused by less frequent NTM species.
    Keywords Mycobacterium ; databases ; epidemiology ; hybridization ; matrix-assisted laser desorption-ionization mass spectrometry ; protocols
    Language English
    Dates of publication 2023-04
    Publishing place John Wiley & Sons, Ltd
    Document type Article ; Online
    Note JOURNAL ARTICLE
    ZDB-ID 1221763-3
    ISSN 1096-9888 ; 1076-5174
    ISSN (online) 1096-9888
    ISSN 1076-5174
    DOI 10.1002/jms.4915
    Database NAL-Catalogue (AGRICOLA)

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  4. Article ; Online: Evaluation and clinical impact of MALDI Biotyper Mycobacteria Library v6.0 for identification of nontuberculous mycobacteria by MALDI-TOF mass spectrometry.

    Markanović, Manda / Makek, Mateja Janković / Glodić, Goran / Kuliš, Tomislav / Mareković, Ivana

    Journal of mass spectrometry : JMS

    2023  Volume 58, Issue 4, Page(s) e4915

    Abstract: Major challenges in the identification of non-tuberculous mycobacteria (NTM) by MALDI-TOF MS include protein extraction protocol and updating of the NTM database. The aim of this study was to evaluate MALDI Biotyper Mycobacteria Library v6.0 (Bruker ... ...

    Abstract Major challenges in the identification of non-tuberculous mycobacteria (NTM) by MALDI-TOF MS include protein extraction protocol and updating of the NTM database. The aim of this study was to evaluate MALDI Biotyper Mycobacteria Library v6.0 (Bruker Daltonics GmbH, Bremen, Germany) for identification of clinical NTM isolates and its impact on clinical management. NTM isolates cultivated from clinical samples in 101 patients were identified simultaneously by PCR-reverse hybridization (Hain Lifescience GmbH, Nehren, Germany) as a routinely used reference molecular method and using MALDI Biotyper Microflex LT/SH after protein extraction. Each isolate was applied to eight spots, and mean scores were used in analysis. MALDI-TOF MS obtained correct identification to the species level for 95 (94.06%) NTM isolates. The majority of correctly identified isolates (92/95; 96.84%) were identified with high-confidence score of ≥1.80 and only 3.16% (3/95) with a score of <1.80. Mean value ± SD of RGM NTM isolates (2.127 ± 0.172) was statistically significant higher in comparison to SGM NTM isolates (2.027 ± 0.142) with a p value of 0.007. In comparison to PCR-reverse hybridization, discordant identification results by MALDI-TOF MS were found in six (6/101; 5.94%) NTM isolates for which clinical data were analyzed. We demonstrated a high confidence NTM identifications using Mycobacterium Library v 6.0 on routine clinical isolates. This is the first study that analyzed MALDI-TOF MS identification results of NTM isolates in the context of clinical data, and it showed that MALDI-TOF MS with its updated databases could help clarify the epidemiology, clinical characteristics, and course of infections caused by less frequent NTM species.
    MeSH term(s) Humans ; Nontuberculous Mycobacteria ; Spectrometry, Mass, Matrix-Assisted Laser Desorption-Ionization/methods ; Mycobacterium ; Polymerase Chain Reaction ; Bacterial Proteins
    Chemical Substances Bacterial Proteins
    Language English
    Publishing date 2023-03-31
    Publishing country England
    Document type Journal Article
    ZDB-ID 1221763-3
    ISSN 1096-9888 ; 1076-5174
    ISSN (online) 1096-9888
    ISSN 1076-5174
    DOI 10.1002/jms.4915
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article ; Online: Bloodstream Infections in Pediatric Oncology Patients: Bacterial Pathogen Distribution and Antimicrobial Susceptibility at the University Hospital Centre Zagreb, Croatia-A 5-Year Analysis.

    Mareković, Ivana / Vujnović, Tajana / Radanović, Jasna / Herljević, Zoran / Kuliš, Tomislav / Pavlović, Maja / Mucavac, Lucija / Dejanović-Bekić, Sara / Bilić, Ernest

    Journal of pediatric hematology/oncology

    2024  Volume 46, Issue 2, Page(s) e156–e163

    Abstract: The epidemiology of bacterial pathogens causing bloodstream infections (BSIs) in pediatric hematology/oncology patients is changing and resistance to antimicrobial agents is globally spread. We retrospectively assessed demographic, clinical, and ... ...

    Abstract The epidemiology of bacterial pathogens causing bloodstream infections (BSIs) in pediatric hematology/oncology patients is changing and resistance to antimicrobial agents is globally spread. We retrospectively assessed demographic, clinical, and microbiologic data of BSIs during a 5-year period at a pediatric hematology/oncology unit from January 1, 2017, to December 31, 2021, at the University Hospital Centre Zagreb, Zagreb, Croatia. In 66 pediatric patients with malignancies, 93 BSI episodes were registered and 97 bacterial isolates were cultured. The Gram-positive versus Gram-negative ratio was 67 (69.1%) versus 30 (30.9%). Coagulase-negative staphylococci (48; 49.6%) were the most frequent isolates, followed by Enterobacterales (17; 17.5%) and Staphylococcus aureus (6; 6.2%). Multidrug resistance isolates included extended spectrum β-lactamase producers (n=3). Resistance rates to piperacillin/tazobactam, cefepime, and meropenem in Gram-negative isolates were 15.4%, 14.3%, and 0.0%, respectively. Gram-positive bacteria are the most common cause of BSI in our patients. Resistance rates to piperacillin/tazobactam and cefepime in Gram-negative isolates make meropenem a better choice for empirical antimicrobial treatment. As national and hospital data may differ, the surveillance of pathogen distribution and antimicrobial susceptibility in pediatric hematology/oncology wards is necessary to adjust empirical treatment accordingly.
    MeSH term(s) Humans ; Child ; Meropenem ; Anti-Bacterial Agents/pharmacology ; Anti-Bacterial Agents/therapeutic use ; Gram-Negative Bacteria ; Retrospective Studies ; Cefepime ; Croatia/epidemiology ; Drug Resistance, Bacterial ; Bacteria ; Hospitals, University ; Anti-Infective Agents ; Sepsis/drug therapy ; Piperacillin ; Tazobactam ; Microbial Sensitivity Tests
    Chemical Substances Meropenem (FV9J3JU8B1) ; Anti-Bacterial Agents ; Cefepime (807PW4VQE3) ; Anti-Infective Agents ; Piperacillin (X00B0D5O0E) ; Tazobactam (SE10G96M8W)
    Language English
    Publishing date 2024-01-15
    Publishing country United States
    Document type Journal Article
    ZDB-ID 1231152-2
    ISSN 1536-3678 ; 1077-4114 ; 0192-8562
    ISSN (online) 1536-3678
    ISSN 1077-4114 ; 0192-8562
    DOI 10.1097/MPH.0000000000002809
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article: Bacteriuria in Paediatric Oncology Patients: Clinical Features, Distribution and Antimicrobial Susceptibility of Bacterial Pathogens at University Hospital Centre Zagreb, Croatia over a 4-Year Period.

    Predavec, Nina / Perčinić, Antonio / Herljević, Zoran / Rezo Vranješ, Violeta / Pavlović, Maja / Šalek, Zrinko / Kuliš, Tomislav / Bilić, Ernest / Mareković, Ivana

    Antibiotics (Basel, Switzerland)

    2024  Volume 13, Issue 2

    Abstract: Bacteriuria in paediatric oncology patients have not been well studied. This retrospective study analysed clinical features, distribution and antimicrobial susceptibility of bacterial pathogens cultured from urine in paediatric oncology patients over a 4- ...

    Abstract Bacteriuria in paediatric oncology patients have not been well studied. This retrospective study analysed clinical features, distribution and antimicrobial susceptibility of bacterial pathogens cultured from urine in paediatric oncology patients over a 4-year period (2019-2022). A total of 143 episodes of bacteriuria were documented in 74 patients. Neutropenia was present in 17.5% (25/143), symptoms in 25.9% (37/143) and urinary catheter in 7.0% (10/143) episodes. Symptomatic bacteriuria episodes were statistically significantly more frequent in patients with neutropenia (
    Language English
    Publishing date 2024-01-25
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2681345-2
    ISSN 2079-6382
    ISSN 2079-6382
    DOI 10.3390/antibiotics13020118
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article ; Online: In vitro

    Jurić, Ivana / Bošnjak, Zrinka / Ćorić, Mario / Lešin, Joško / Mareković, Ivana

    Journal of chemotherapy (Florence, Italy)

    2021  Volume 34, Issue 1, Page(s) 67–70

    Abstract: The main obstacle in treatment of infections caused by carbapenem-resistant Enterobacterales (CRE) are limited treatment options. The novel antimicrobial agents other than β-lactams with activity not being dependent on β-lactamase class are especially ... ...

    Abstract The main obstacle in treatment of infections caused by carbapenem-resistant Enterobacterales (CRE) are limited treatment options. The novel antimicrobial agents other than β-lactams with activity not being dependent on β-lactamase class are especially important. Eravacycline (ERV) is the first fully synthetic fluorocycline indicated for the treatment of complicated intra-abdominal infections in adults. Eighty CRE isolates at the University Hospital Centre Zagreb, Croatia were examined for susceptibility to ERV by disc diffusion method and minimal inhibitory concentration (MIC). Total of 54 (54/80; 67.5%) isolates were susceptible to ERV with MIC
    MeSH term(s) Anti-Bacterial Agents/pharmacology ; Carbapenem-Resistant Enterobacteriaceae/drug effects ; Carbapenem-Resistant Enterobacteriaceae/genetics ; Croatia ; Dose-Response Relationship, Drug ; Microbial Sensitivity Tests ; Tetracyclines/pharmacology ; beta-Lactamase Inhibitors/pharmacology
    Chemical Substances Anti-Bacterial Agents ; Tetracyclines ; beta-Lactamase Inhibitors ; eravacycline (07896928ZC)
    Language English
    Publishing date 2021-08-17
    Publishing country England
    Document type Journal Article
    ZDB-ID 1036294-0
    ISSN 1973-9478 ; 1120-009X
    ISSN (online) 1973-9478
    ISSN 1120-009X
    DOI 10.1080/1120009X.2021.1965335
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article: Sepsityper

    Perše, Gabrijela / Samošćanec, Ivana / Bošnjak, Zrinka / Budimir, Ana / Kuliš, Tomislav / Mareković, Ivana

    Life (Basel, Switzerland)

    2022  Volume 12, Issue 11

    Abstract: In order to further accelerate pathogen identification from positive blood cultures (BC), various sample preparation protocols to identify bacteria with MALDI-TOF MS directly from positive BCs have been developed. We evaluated an in-house method in ... ...

    Abstract In order to further accelerate pathogen identification from positive blood cultures (BC), various sample preparation protocols to identify bacteria with MALDI-TOF MS directly from positive BCs have been developed. We evaluated an in-house method in comparison to the Sepsityper® Kit (Bruker Daltonics, Bremen, Germany) as well as the benefit of an on-plate formic acid extraction step following positive signal by the BACTECTM FX system. Confirmation of identification was achieved using subcultured growing biomass used for MALDI-TOF MS analysis. A total of 113 monomicrobial positive BCs were analyzed. The rates of Gram-positive bacteria correctly identified to the genus level using in-house method and Sepsityper® Kit were 63.3% (38/60) and 81.7% (49/60), respectively (p = 0.025). Identification rates at species level for Gram-positive bacteria with in-house method and Sepsityper® kit were 30.0% (18/60) and 66.7% (40/60), respectively (p < 0.001). Identification rates of Gram-negative bacteria were similar with the in-house method and Sepsityper® Kit. Additional on-plate formic acid extraction demonstrated significant improvement in the identification rate of Gram-positive bacteria at both genus and species level for both in-house (p = 0.001, p < 0.001) and Sepsityper® Kit methods (p = 0.007, p < 0.001). Our in-house method is a candidate for laboratory routines with Sepsityper® Kit as a back-up solution when identification of Gram-positive bacteria is unsuccessful.
    Language English
    Publishing date 2022-10-30
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2662250-6
    ISSN 2075-1729
    ISSN 2075-1729
    DOI 10.3390/life12111744
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  9. Article ; Online: Epidemiology of Candidemia: Three-Year Results from a Croatian Tertiary Care Hospital.

    Mareković, Ivana / Pleško, Sanja / Rezo Vranješ, Violeta / Herljević, Zoran / Kuliš, Tomislav / Jandrlić, Marija

    Journal of fungi (Basel, Switzerland)

    2021  Volume 7, Issue 4

    Abstract: Invasive candidosis is the most common invasive fungal infection in hospitalized patients and is associated with a high mortality rate. This is the first study from a Croatian tertiary care hospital describing epidemiology, risk factors and species ... ...

    Abstract Invasive candidosis is the most common invasive fungal infection in hospitalized patients and is associated with a high mortality rate. This is the first study from a Croatian tertiary care hospital describing epidemiology, risk factors and species distribution in patients with candidemia. A three-year retrospective observational study, from 2018 to 2020, was performed at the University Hospital Centre Zagreb, Zagreb, Croatia. A total of 160 patients with candidemia (
    Language English
    Publishing date 2021-03-31
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2784229-0
    ISSN 2309-608X ; 2309-608X
    ISSN (online) 2309-608X
    ISSN 2309-608X
    DOI 10.3390/jof7040267
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  10. Article ; Online: Increasing trend in enterococcal bacteraemia and vancomycin resistance in a tertiary care hospital in Croatia, 2017-2021.

    Todorić, Zrinka / Majdandžić, Ivana / Keretić Kregar, Tea / Herljević, Zoran / Ćorić, Mario / Lešin, Joško / Kuliš, Tomislav / Mareković, Ivana

    Infectious diseases (London, England)

    2022  Volume 55, Issue 1, Page(s) 9–16

    Abstract: Background: The epidemiology of enterococcal bacteraemia has changed worldwide and vancomycin-resistant enterococci increasingly cause healthcare-associated infections) with limited treatment options. Studies show heterogeneity among countries, regions ... ...

    Abstract Background: The epidemiology of enterococcal bacteraemia has changed worldwide and vancomycin-resistant enterococci increasingly cause healthcare-associated infections) with limited treatment options. Studies show heterogeneity among countries, regions and individual hospitals.
    Methods: We retrospectively analysed enterococcal bacteraemia with
    Results: A total of 432 cases of enterococcal bacteraemia were identified with 256 (59.3%) due to
    Conclusions: This is the first study describing the trends in enterococcal bacteraemia and vancomycin-resistance in enterococci in Croatia. We found a rising trend in enterococcal bacteraemia and in the proportion of vancomycin resistance and identified the most vulnerable patient groups, notably intensive care unit patients.
    MeSH term(s) Male ; Humans ; Infant, Newborn ; Infant ; Child, Preschool ; Child ; Adolescent ; Young Adult ; Adult ; Middle Aged ; Aged ; Aged, 80 and over ; Vancomycin Resistance ; Enterococcus faecium ; Gram-Positive Bacterial Infections/drug therapy ; Gram-Positive Bacterial Infections/epidemiology ; Retrospective Studies ; Tertiary Care Centers ; Anti-Bacterial Agents/pharmacology ; Anti-Bacterial Agents/therapeutic use ; Enterococcus faecalis ; Bacteremia/drug therapy ; Bacteremia/epidemiology ; Vancomycin-Resistant Enterococci ; Cross Infection/drug therapy ; Cross Infection/epidemiology
    Chemical Substances Anti-Bacterial Agents
    Language English
    Publishing date 2022-10-14
    Publishing country England
    Document type Journal Article
    ZDB-ID 2839775-7
    ISSN 2374-4243 ; 2374-4235
    ISSN (online) 2374-4243
    ISSN 2374-4235
    DOI 10.1080/23744235.2022.2131901
    Database MEDical Literature Analysis and Retrieval System OnLINE

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