Jelena Martinov Nestorov

Dr. Jelena Martinov Nestorov


Research Focus & Metrics

Academic Career Length

8Years (2019-Present)

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

Representative Publications

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20 January 2022 in Medicina
Verified
Journal Article
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TGTijana Glisic
Tijana Glisic
MLMilica Stojkovic Lalosevic
Milica Stojkovic Lalosevic
TMTamara Milovanovic
Tamara Milovanovic
Ivan RankovićIvan Ranković
Ivan Ranković
MSMarija Stojanovic
Marija Stojanovic
DPDusan Dj Popovic
Dusan Dj Popovic
Background and Objectives: Upper endoscopy is considered the gold standard for screening and diagnosis of esophageal varices (EV). Non-invasive methods for predicting EV have become a research hotspot in recent years. The aim of this study was to assess the role of non-invasive scores in predicting the presence of EV in patients with liver cirrhosis, and to determine the value of these scores in predicting the outcome of patients with cirrhosis presenting with acute variceal bleeding. Materials and Methods: A total of 386 patients with liver cirrhosis were included. The model for end-stage liver disease (MELD), aspartate aminotransferase (AST) to alanine aminotransferase (ALT) ratio (AST/ALT), AST to platelet ratio index (APRI), fibrosis-4-index (FIB-4), fibrosis index (FI), King’s Score, albumin-bilirubin (ALBI) score, and platelet-albumin-bilirubin (PALBI) score were calculated. The discriminatory capacities of the examined scores in predicting the presence of esophageal varices were tested using receiver operating characteristic (ROC) curves. Results: The ROC curve analysis showed (area under the curve) AUC values of ALBI and PALBI of 0.603, and 0.606, respectively, for the prediction of EV. APRI, MELD, PALBI, King’s, FIB-4, and ALBI scores showed statistically significant correlation with EV bleeding (p < 0.05). AUC of APRI and MELD for predicting EV bleeding were 0.662 and 0.637, respectively. The AUC value of MELD in short-term mortality was 0.761. Conclusions: ALBI and PALBI scores had modest diagnostic accuracy of EVs in liver cirrhosis. APRI and MELD can be used as a reference index for the EV bleeding, and MELD score is best associated with short-term outcome in cirrhotic patients.

5 September 2023 in Diagnostics
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Journal Article
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DPDusan Dj Popovic
Dusan Dj Popovic
TGTijana Glisic
Tijana Glisic
Tomica MilosavljevicTomica Milosavljevic
Tomica Milosavljevic
PPPanic Panic
Panic Panic
MMMarija Marjanovic-Haljilji
Marija Marjanovic-Haljilji
BFBranka Filipovic
Branka Filipovic
Recently, there has been a growing interest in the application of artificial intelligence (AI) in medicine, especially in specialties where visualization methods are applied. AI is defined as a computer’s ability to achieve human cognitive performance, which is accomplished through enabling computer “learning”. This can be conducted in two ways, as machine learning and deep learning. Deep learning is a complex learning system involving the application of artificial neural networks, whose algorithms imitate the human form of learning. Upper gastrointestinal endoscopy allows examination of the esophagus, stomach and duodenum. In addition to the quality of endoscopic equipment and patient preparation, the performance of upper endoscopy depends on the experience and knowledge of the endoscopist. The application of artificial intelligence in endoscopy refers to computer-aided detection and the more complex computer-aided diagnosis. The application of AI in upper endoscopy is aimed at improving the detection of premalignant and malignant lesions, with special attention on the early detection of dysplasia in Barrett’s esophagus, the early detection of esophageal and stomach cancer and the detection of H. pylori infection. Artificial intelligence reduces the workload of endoscopists, is not influenced by human factors and increases the diagnostic accuracy and quality of endoscopic methods.

31 May 2019 in The Journal of Infection in Developing Countries
Verified
Journal Article
Open access
JJJelena Jordovic
Jelena Jordovic
JSJasmina Simonovic-Babic
Jasmina Simonovic-Babic
VGVladimir Gašić
Vladimir Gašić
NKNikola Kotur
Nikola Kotur
BZBranka Zukic
Branka Zukic
KBKsenija Bojovic
Ksenija Bojovic
Introduction: Patients with severe fibrosis or cirrhosis are at high risk for liver-related complications, even after successful antiviral treatment and/or regression of fibrosis. These are the first published results concerning the role of IL-28B genotypes as predictors of the durability of sustained virological response (SVR) and long-term outcome, in patients with baseline severe fibrosis and cirrhosis caused by hepatitis C (HCV) infection. Methodology: Genetic testing for three different single nucleotide polymorphisms (SNP) near the IL28B gene, rs12979860, rs12980275 and rs8099917, was performed in 42 patients with HCV-related advanced fibrosis and cirrhosis, who achieved SVR after successful interferon-based treatment. Baseline clinical and laboratory parameters were analysed, as well as IL28B genotype association with late virological relapse, fibrosis progression and clinical outcomes. Results: The most prevalent genotypes in all three tested SNP positions were: CCrs12979860 genotype in 69% of patients, GTrs8099917 in 78.6% and GGrs12980275 in 47.6% of patients. The presence of IL28B CCrs12979860 genotype was identified as a negative predictor of late virological relapse. Further analysis did not confirm the association of other IL28B genotypes with the progression of fibrosis and clinical outcomes. Conclusions: Varying long-term prognosis in patients with HCV-related severe fibrosis and cirrhosis is due to multiple interactions between host genetic factors, virus and environment. These are first published results demonstrating the significance of IL28B CCrs12979860 genotype as a negative predictor of late virological relapse. A further investigation concerning genetic factors is necessary to identify patients under risk for late relapse, complications and unfavorable outcomes, so that they can be reevaluated and offered new treatment options.

28 February 2024 in Diagnostics
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Journal Article
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MŠMiloš Štulić
Miloš Štulić
Jelena JadzicJelena Jadzic
Jelena Jadzic
NDNatasa Dostanic
Natasa Dostanic
MZMilica Zivkovic
Milica Zivkovic
TSTihomir Stojković
Tihomir Stojković
DDDanijela Djonic
Danijela Djonic
Although previous studies indicated that chronic alcohol abuse (CAA) and alcoholic liver cirrhosis (ALC) are associated with increased bone fragility, understanding bone fragility determinants is still modest in these individuals. We used a comprehensive individualized clinical fracture risk assessment approach (vertebral osteodensitometry, femoral osteodensitometry and geometry, and serum bone turnover biomarkers) to compare adult male patients with ALC who have not previously had femoral or vertebral fractures (n = 39), patients with CAA (without liver cirrhosis, n = 78) who have not previously had femoral or vertebral fractures and healthy age- and sex-matched controls (n = 43). Our data suggested that intertrochanteric bone mineral density was significantly lower in ALC and CAA patients than in controls. Also, the trabecular bone score was considerably lower in ALC patients compared with CAA and control individuals. The most significant inter-group differences in femoral geometry were noted on the femoral shaft. Patients with ALC and CAA have a higher 10-year risk of major osteoporotic fractures compared to the controls. Analysis of bone turnover biomarkers showed increased osteoprotegerin and beta-C-terminal telopeptide serum concentrations and decreased insulin growth factor-1 concentrations in patients with ALC compared to CAA and control groups. Our data revealed that bone alterations are present in patients with ALC and CAA even if they did not sustain a nontraumatic bone fracture, but it is also indicative that current bone-assessing clinical methods are not entirely reliable. Thus, future studies should focus on developing a reliable integrative clinical tool that can be used to accurately predict and prevent bone fracture occurrences in patients with ALC and CAA.

25 October 2025 in Journal of Clinical Medicine
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Journal Article
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TGTijana Glisic
Tijana Glisic
BKBojan Korica
Bojan Korica
MLMilica Stojkovic Lalosevic
Milica Stojkovic Lalosevic
NBNevena Dusko Baljosevic
Nevena Dusko Baljosevic
JMJasna El Mezeni
Jasna El Mezeni
DMDragana Mijac
Dragana Mijac
Background/Objectives: Cirrhosis is an irreversible state of chronic liver disease. Systemic inflammatory response syndrome (SIRS) is a severe complication and significantly contributes to lethal outcomes in cirrhotic patients. We studied a group of cirrhotic patients with SIRS admitted to our centre, assessing the relationship with in-hospital outcomes. Methods: The study population included 102 patients with alcoholic cirrhosis and SIRS. Laboratory biomarkers, the model for end-stage liver disease, the model for end-stage liver disease—natrium, the Acute Physiology and Chronic Health Evaluation II score, CLIF-C organ failure, the systemic immune-inflammation index score (S II), and the Cirrhosis Acute Gastrointestinal Bleeding (CAGIB) score were tested in relation to the mortality risk using receiver operating characteristic (ROC) curves. Results: Our results demonstrated that values of sodium, chlorides, and albumin significantly correlated with 7-day survival. The area under the curve’s (AUCs) values for sodium, chlorides, and albumin were 0.542, 0.627, and 0.610, respectively, for 7-day mortality prediction. The CAGIB score significantly correlated with 7-day mortality, with the cut-off value of −7.86 (AUC: 0.674, 95% CI (0.555–0.794)). For the assessment of 28-day mortality, the AUC values for sodium, chlorides, and albumin were 0.630, 0.654, and 0.661, respectively. Additionally, the cut-off value of the CAGIB score was found to be −7.84 (AUC: 0.625, 95% CI (0.509–0.740)) in 28-day mortality prediction. Conclusions: Sodium, chlorides, albumin, and the CAGIB score are reliable predictors of 7-day and 28-day in-hospital mortality in patients with advanced alcoholic liver disease and SIRS.

29 August 2023 in Medicina
Verified
Journal Article
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SSStefan Rade Stojkovic
Stefan Rade Stojkovic
MBMilica Bjelakovic
Milica Bjelakovic
MLMilica Stojkovic Lalosevic
Milica Stojkovic Lalosevic
MŠMiloš Štulić
Miloš Štulić
NPNina Pejic
Nina Pejic
DCDjordje Culafic
Djordje Culafic
Foreign body ingestion is a frequently encountered emergency in healthcare institutions. It mostly affects pediatric populations, although it can also affect adults with developmental delays, those with psychiatric diseases, drug abusers, and prisoners. Endoscopy is a diagnostic and treatment method for suspected foreign body ingestion. In this article, we discuss a 45-year-old tailor who swallowed a sewing pin while at work. The abdominal X-ray showed a needle-shaped metal shadow in the stomach region. During an upper endoscopy, it was discovered that a sewing pin with a sharp edge was stuck in the pylorus. The sewing pin was extracted endoscopically, and the patient was discharged the same day in good condition. Since the estimated risk of complications of foreign body ingestion in the adult population is about 35%, and the most common complications include impaction, laceration, bleeding, or perforation of the gastrointestinal wall, endoscopic or surgical removal is necessary. This also emphasizes the importance of a careful endoscopic evaluation of some at-risk occupations for foreign body ingestion with or without gastrointestinal complaints.