Ivan Milivojevic

Dr. Ivan Milivojevic

orcid

Research Focus & Metrics

Academic Career Length

4Years (2023-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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31 December 2023 in The Journal of Infection in Developing Countries
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Journal Article
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JJJelena Janković
Jelena Janković
MGMilija Gajić
Milija Gajić
AZAndrej Zečević
Andrej Zečević
IMIvan Milivojevic
Ivan Milivojevic
IBIvana Buha
Ivana Buha
Introduction: Sphingomonas paucimobilis can be found in air, water systems, dialysis fluid, nebulizers and laboratory instruments in hospitals. Despite its low pathogenicity, it can cause severe infections. Case report: A 54-year-old man presented with fever, cough and pain in the right hemithorax. The laboratory results showed elevated inflammatory parameters. Chest radiography showed right upper lobe pneumonia. Empiric antibiotic therapy (cephalosporin) was prescribed. On control examination chest radiography showed incomplete regression. Chest computer tomography (CT) finding was bronchopneumonia in the right upper lobe. Bacteriological examination of fiberaspirate revealed Sphingomonas paucimobils. Trimethoprim-sulfamethoxazole was prescribed based on the antibiogram. After two weeks the control laboratory analysis was normal. The patient was fully recovered. Conclusions: Our patient had no comorbidities or malignancies, and no hospitalization in the recent past. He had a dental intervention 5 days prior to the onset of symptoms. We propose that it was an infection after the dental intervention.

19 January 2026 in Cells
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Journal Article
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MGMilija Gajic
Milija Gajic
VKVesna Ćeriman Krstić
Vesna Ćeriman Krstić
NSNatalija Vasilije Samardzic
Natalija Vasilije Samardzic
ISIvan Soldatovic
Ivan Soldatovic
SGSofija Glumac
Sofija Glumac
DJDragana Jovanovic
Dragana Jovanovic
Malignant pleural mesothelioma (MPM) is a very aggressive tumor. The prognostic value of PD-L1 and BAP1 expression has been investigated in many studies. A retrospective study was conducted that analyzed PD-L1 and BAP1 expression as prognostic biomarkers in patients with MPM. The study included 53 patients with MPM. PD-L1 expression ≥ 1% was found in 39.6%, and BAP1 loss was found in 81.1% of patients. The median overall survival (mOS) was 11 months. Subtype of MPM (p = 0.045), early tumor stage (p = 0.049), therapy (p = 0.002), and good PS (0–1) (p = 0.012) were associated with better survival. Expression of PD-L1 and BAP1 did not show statistical significance regarding OS, but OS was numerically shorter in patients with PD-L1 ≥ 10% (5 vs. 12 months) and longer in patients with BAP1 loss (12 vs. 4 months). In patients with PD-L1 ≥ 1% and BAP1 loss, the median progression-free survival (mPFS) was numerically longer (10 vs. 7 months) but in patients with PD-L1 ≥ 1% and BAP1 positivity, PFS was statistically significantly shorter (1 vs. 7 months, p = 0.048). Our results did not show that PD-L1 and BAP1 are prognostic biomarkers for MPM, but positive PD-L1 expression and BAP1 loss were associated with worse survival in patients with MPM.

26 August 2024 in Diagnostics
Verified
Journal Article
Open access
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MSMihailo Stjepanovic
Mihailo Stjepanovic
FMFilip Marković
Filip Marković
IMIvan Milivojevic
Ivan Milivojevic
SPSpasoje Popevic
Spasoje Popevic
SDSanja Dimic-Janjic
Sanja Dimic-Janjic
Marija ZdravkovićMarija Zdravković
Marija Zdravković
Sarcoidosis is an inflammatory condition that can affect multiple organ systems and is characterized by the formation of non-caseating granulomas in various organs, including the heart. Due to suboptimal diagnostic rates, the true prevalence and incidence of cardiac sarcoidosis (CS) remain to be determined. In patients with suspected CS, an initial examination should include 12-lead ECG or ambulatory ECG monitoring, and echocardiography with the estimation of LV, RV function, and strain rate. In patients with confirmed extracardiac sarcoidosis and with high clinical suspicion for CS, sophisticated imaging modalities, including cardiac MRI and PET, are indicated. Typical inflammation patterns and myocardial scarring should pose a high suspicion for CS. In patients without diagnosed extracardiac sarcoidosis and high clinical suspicion, although with low diagnostic probability, an endomyocardial biopsy should be considered to establish the diagnosis of definite isolated cardiac sarcoidosis. Timely diagnosis enables the initiation of therapy and close monitoring of adverse cardiac events that can be life-threatening, including sudden cardiac death, ventricular tachycardia, high-degree AV block, and heart failure. Implementing biomarkers in correlation to cardiac imaging can determine the disease’s severity and progression but can also be helpful in following the treatment response. The formation of larger global registries can be helpful in the identification of independent predictors of adverse clinical events and the development of specific diagnostic algorithms to reduce the overall risk of this serious condition.

31 May 2025 in The Journal of Infection in Developing Countries
Verified
Journal Article
Open access
PDF file
SDSanja Dimic-Janjic
Sanja Dimic-Janjic
AZAndrej Zecevic
Andrej Zecevic
AGAleksa Golubović
Aleksa Golubović
ARAna Ratkovic
Ana Ratkovic
IMIvan Milivojevic
Ivan Milivojevic
BMBranislava Milenkovic
Branislava Milenkovic
Introduction: The Neutrophil-to-Lymphocyte Ratio (NLR) has been utilized to predict clinical outcomes in cardiovascular diseases, infectious diseases, and solid tumors and it has a potential association with the severity of Chronic Obstructive Pulmonary Disease (COPD). This study aimed to determine whether NLR is a possible predictor of inflammation severity and mortality in COPD. Methodology: A prospective analysis of NLR in 70 COPD patients, and its relation with biochemical, lung function parameters, and mortality was assessed. Results: NLR was negatively associated with oxygen saturation (p < 0.05) and positively related to C-reactive protein (CRP) (p < 0.05), matrix metalloproteinase-9 (MMP-9) (p ≤ 0.001), tissue inhibitor of metalloproteinase-1 (TIMP-1) (p < 0.05), MMP-9/TIMP-1 ratio (p < 0.05), and the modified Medical Research Council dyspnea scale (mMRC) score (p < 0.05). Deceased patients had significantly higher NLR (p < 0.05). Older age and lower levels of saturation were independently associated with higher mortality in COPD patients (p < 0.05). Conclusions: NLR in COPD correlates with inflammation and protease/antiprotease balance, with elevated NLR detected in deceased patients. These findings suggest that NLR can be a helpful clinical marker in COPD.

22 August 2025 in Diagnostics
Verified
Journal Article
Open access
PDF file
SDSanja Dimic-Janjic
Sanja Dimic-Janjic
MSMihailo Stjepanovic
Mihailo Stjepanovic
SBSlobodan Belić
Slobodan Belić
DVDragan Vukosavljevic
Dragan Vukosavljevic
IMIvan Milivojevic
Ivan Milivojevic
TIthe Serbian EMPIRE Investigators
the Serbian EMPIRE Investigators
Background/Objectives: Idiopathic pulmonary fibrosis (IPF) registries are established to enhance understanding of its natural history. Methods: Serbia (RS) participated in the EMPIRE (European Multi-Partner IPF Registry) from June 2015 to October 2022, involving four centers. The registry included patients over 18 diagnosed with IPF based on the 2011 international criteria. We aimed to gather key clinical, functional, and survival data, along with treatment information for IPF patients in RS, using a centralized electronic case report for consistency. Results: 188 RS patients participated (median age at diagnosis 65, 63.8% male, 51% smoking history, 56% radiological usual interstitial pneumonia (UIP) pattern). At the diagnosis, median forced vital capacity (FVC) was 73.7% and diffusion capacity for carbon monoxide (DLCO) was 38%. At initiation of antifibrotic therapy, median FVC was 73.2% (71.5% for deceased, 75.8% for survivors (p = 0.455), and DLCO was 33.8% (19.9% for deceased, and 35.6% for survivors (p = 0.046)). The median long-term survival from diagnosis was 29.4 months (95% CI: 22.6–36.2 months), and 9.4 months (95% CI: 5.9–12.9 months) from the initiation of therapy, with no difference in the duration of antifibrotic treatment between survivors and deceased (p = 0.598). Conclusions: The RS EMPIRE cohort represents a younger, less comorbid population with fewer smokers and more probable UIP, factors linked to a favorable prognosis. Nevertheless, survival was poorer than expected, mainly due to advanced disease severity at the time of antifibrotic initiation, as indicated by lower DLCO. These findings highlight the importance of earlier diagnosis and treatment before significant physiological decline to improve outcomes.

30 July 2024 in Preprints.org
Verified
Preprint
Open access
PDF file
MSMihailo Stjepanovic
Mihailo Stjepanovic
FMFilip Marković
Filip Marković
IMIvan Milivojevic
Ivan Milivojevic
SPSpasoje Popevic
Spasoje Popevic
SDSanja Dimic-Janjic
Sanja Dimic-Janjic
Marija ZdravkovićMarija Zdravković
Marija Zdravković
Sarcoidosis is an inflammatory condition that can affect multiple organ systems and is characterized by the formation of non-caseating granulomas in various organs, including heart. Due to suboptimal diagnostic rates, the true prevalence and incidence of cardiac sarcoidosis (CS) remain to be determined. In patients with suspected CS, initial examination should include 12-lead ECG or ambulatory ECG monitoring, as well as echocardiography with the estimation of LV, RV function and strain rate. In patients with confirmed extracardiac sarcoidosis and with high clinical suspicion for CS, sophisticated imaging modalities, including cardiac MRI and PET are indicated. Typical patterns of inflammation and myocardial scarring should pose a high suspicion for CS. In patients without diagnosed extracardiac sarcoidosis and high clinical suspicion, although with low diagnostic porobability, endomyocardial biopsy should be considered to establish the diagnosis of definite isolated cardiac sarcoidosis. Timely diagnosis enables the initation of therapy and close monitoring of adverse cardiac events that can be life-threatening, including sudden cardiac death, ventricular tachycardia, high-degree AV block, and heart failure. Implementation of biomarkers in correlation to cardiac imaging can determine the disease severity and progression, but also be helpful in following the treatment response. The formation of larger global registries can be helpful in the identification of independent predictors of adverse clinical events and development of specific diagnostic algorithms to reduce the overal risk of this serious condition.