Bojan Cegar

Dr. Bojan Cegar

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Research Focus & Metrics

Academic Career Length

7Years (2020-Present)

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

Representative Publications

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11 September 2023 in Life
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BCBojan Cegar
Bojan Cegar
SGSandra Šipetić Grujičić
Sandra Šipetić Grujičić
JBJovana Bjekić
Jovana Bjekić
AVAleksandar Vuksanović
Aleksandar Vuksanović
NBNebojsa Nikola Bojanic
Nebojsa Nikola Bojanic
Milica ZekovicMilica Zekovic
Milica Zekovic
The experience of an infertility diagnosis and treatment imposes a profound burden on affected individuals, encompassing not only physical and medical aspects but also a plethora of psychological, social, and emotional factors. By employing a multimodal assessment featuring validated self-report questionnaires, physical measurements, and clinical records, the present study aimed to explore the quality of life and psycho-emotional distress of men undergoing infertility treatment in Serbia, thereby addressing the dearth of research on the underrepresented male perspective in this domain. Findings revealed diverse semen abnormalities among participants (n = 96, average age 37.69 ± 5.72), with significant associations between longer treatment durations and reduced sperm motility. The observed rates of men surpassing predetermined DASS-42 questionnaire thresholds for depression, anxiety, and stress in the analyzed cohort were 13.54%, 11.46%, and 22.92%, respectively. Summary scores in conceptual areas comprised in the SF-36 questionnaire ranged from 49.00 ± 6.25 for the mental health dimension to 90.16 ± 17.75 obtained in the physical functioning subscale. Patients with a longer treatment duration demonstrated lower scores in the role emotional domain, indicative of a less favorable emotional state. Expectedly, inverse correlations were found between the SF-36 mental health score and DASS-42 subscales. By addressing the existing knowledge gap and highlighting the unique needs of infertile men, the finding of this study may contribute to a more inclusive and holistic approach to infertility research and management.

4 December 2023 in Healthcare
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DJDarko Jovanovic
Darko Jovanovic
MAMiodrag Aćimović
Miodrag Aćimović
TPTomislav Pejcic
Tomislav Pejcic
BMBogomir Milojevic
Bogomir Milojevic
BCBojan Cegar
Bojan Cegar
GMGorica Maric
Gorica Maric
Background: Penile cancer (PC) is a highly aggressive disease, with a significant tendency for lymphatic spreading and subsequent development of distant metastases. The mutilating nature of PC surgical treatment has profound implications on the patient’s body integrity and self-image, sexual life and intimacy, voiding and mental health. The aim of our study was to comprehensively evaluate PC patients’ post-treatment quality of life (QoL), sexual activity, self-esteem, fatigue and fear of disease recurrence. (2) Methods: A cross-sectional study was conducted at the Clinic of Urology, University Clinical Centre of Serbia, and included 31 PC patients. Data were collected by means of a questionnaire. (3) Results: The average score on the Global health status scale was 67.2 out of 100 (ranging from 16.7 to 100), and the SD was 22.5. Hierarchical linear regression analysis showed that demographic characteristics, Hospital Anxiety and Depression scale (HADS) anxiety and depression scores, total Multidimensional Fatigue Inventory, Fear of cancer recurrence and Rosenberg scores and erectile function score explained a total of 78.2% of the variance in the global health status/QoL scale of PC patients. (4) Conclusions: Efforts should be made not only to increase the survival of PC patients after surgical treatment but also to enable the best possible level of QoL in the post-operative period.

19 April 2023 in Medicina
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NPNebojsa Jovo Prijovic
Nebojsa Jovo Prijovic
VSVeljko Santric
Veljko Santric
UBUros Babic
Uros Babic
BSBranko Stankovic
Branko Stankovic
MAMiodrag Acimovic
Miodrag Acimovic
BCBojan Cegar
Bojan Cegar
Inflammatory myofibroblastic tumour (IMT) is a rare tumour with an intermediate biological behaviour. It usually occurs in children and adolescents, primarily in the abdomen or lungs. Histopathologically, IMT consists of spindle cells, i.e., myofibroblasts, and a variable inflammatory component. Localization in the urinary bladder is rare. We are presenting a rare case of IMT in the bladder in a middle-aged man treated by partial cystectomy. A 62-year-old man consulted a urologist because of haematuria and dysuric disturbances. A tumorous mass was detected by an ultrasound in the urinary bladder. CT urography described the tumorous mass at the dome of the urinary bladder measuring 2 × 5 cm. A smooth tumorous mass was cystoscopically observed at the dome of the urinary bladder. Transurethral resection of the bladder tumour was performed. Histopathological analysis of the specimen identified spindle cells with a mixed inflammatory infiltrate; immunohistochemical findings showed positivity for anaplastic lymphoma kinase (ALK), smooth muscle actin (SMA) and vimentin. A histopathological diagnosis of IMT was established. It was decided that the patient would undergo a partial cystectomy. A complete excision of the tumour from the dome of the urinary bladder with surrounding healthy tissue was performed. Histopathological and immunohistochemical findings of the sample confirmed the diagnosis of IMT, without the presence of the tumour at the surgical margins. The postoperative course went smoothly. IMT is a rare tumour in adults, especially localised in the urinary bladder. IMT of the urinary bladder is difficult to distinguish from urinary bladder malignancy both clinically and radiologically, as well as histopathologically. If the location and size of the tumour allow it, bladder-preserving surgeries such as partial cystectomy represent a reasonable modality of operative treatment.

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KJKristina Dragan Jovanović
Kristina Dragan Jovanović
Miljana Z JovandaricMiljana Z Jovandaric
Miljana Z Jovandaric
DJDarko Jovanovic
Darko Jovanovic
Milos Nemanja MilincicMilos Nemanja Milincic
Milos Nemanja Milincic
MKMirjana Tihomir Krstic
Mirjana Tihomir Krstic
DNDimitrije Mihailo Nikolić
Dimitrije Mihailo Nikolić
Pregnancy is characterized by progressive maternal hyperlipidemia, including increased triglycerides, total cholesterol, and low-density lipoprotein, with dynamic fluctuations in high-density lipoprotein. Excess maternal free fatty acids induce oxidative stress through reactive oxygen species, causing mitochondrial dysfunction, lipid peroxidation, activation of inflammatory pathways, and epigenetic remodeling in the placenta and fetal tissues. These molecular alterations impair placental lipid transport and nutrient sensing, leading to hypertrophy of fetal liver, myocardium, and adipose tissue, while disrupting neonatal glucose and lipid homeostasis and increasing susceptibility to perinatal complications and long-term metabolic disorders. This review aims to evaluate mechanistic pathways linking maternal lipid metabolism, oxidative stress, placental function, and fetal organ remodeling. Mechanistic and translational studies were identified through searches of PubMed, Scopus, the Cochrane Library, and Web of Science (2000–2025) using predefined keywords including lipid metabolism, free fatty acids, oxidative stress, placental lipid transport, epigenetics, DNA methylation, fetal programming, and perinatal outcomes. Evidence indicates that maternal lipid imbalance drives placental oxidative and epigenetic modifications, directly contributing to fetal organ hypertrophy and neonatal metabolic dysregulation. In conclusion, maternal dyslipidemia represents a modifiable determinant of fetal organ hypertrophy and long-term metabolic risk, supporting the clinical relevance of maternal lipid monitoring and targeted metabolic interventions during pregnancy.

16 March 2025 in Medicina
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SKSladjana Kovacevic
Sladjana Kovacevic
IVIvan Vuković
Ivan Vuković
Uros BumbasirevicUros Bumbasirevic
Uros Bumbasirevic
MZMarko Zivkovic
Marko Zivkovic
SSslavisa Savic
slavisa Savic
BCBojan Cegar
Bojan Cegar
Background and Objectives: Stress urinary incontinence (SUI) impacts 4–50% of adult women, frequently resulting in embarrassment, diminished self-esteem, and social withdrawal, significantly affecting quality of life. The aim of our study is to cross-culturally adapt and validate the Urinary Incontinence Outcome Questionnaire (IOQ) for the Serbian population and to assess the multifaceted impact of SUI on the quality of life among women. Materials and Methods: A cross-sectional study involved a total of 150 women: 100 undergoing surgical management for SUI (ST group) and 50 receiving non-surgical treatments, including vaginal estrogen, pessaries, electrical stimulation, or collagen fillers (NST group). The participants completed questionnaires on demographics, fatigue (MFI), anxiety and depression (HADS), and quality of life (SF-36), as well as the IOQ. Results: The ST group had a mean age of 60.0 ± 10.0 years, with 65% married, 65% with secondary education, 62% non-smokers, and 78% with comorbid conditions, primarily cardiovascular disease (59%). The NST group showed similar characteristics, with a significant difference in cardiovascular comorbidity (p = 0.049). All IOQ subscales demonstrated good internal consistency (Cronbach alpha > 0.7), except for the subscale Complications (Cronbach alpha = 0.440). The IOQ score for “Symptoms pre-operative” had the highest mean value (62.8 ± 18.6), while “Hospital Re-admission” had the lowest (303 ± 17.1). A comparison of the SF-36 scores showed significant differences in the Energy (p = 0.025) and Emotional well-being (p = 0.015) domains between the ST and NST groups. Conclusions: The Serbian version of the IOQ has been validated, demonstrating psychometric features that endorse its application in clinical and research contexts. This study highlights the significant impact of SUI on quality of life and the need for a comprehensive approach to treatment. The results emphasize the importance of addressing both the physical and psychological aspects of SUI to improve the lives of affected women.

1 January 2020 in Serbian Journal of Anesthesia and Intensive Therapy
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BCBojan Cegar
Bojan Cegar
Uros BumbasirevicUros Bumbasirevic
Uros Bumbasirevic
MSMilica Stojadinović
Milica Stojadinović
NBNebojsa Nikola Bojanic
Nebojsa Nikola Bojanic
DSDanijela Sekulić
Danijela Sekulić
AVAleksandar Vuksanović
Aleksandar Vuksanović
Male genitalia includes the penis, testicles and the prostate. Ultrasound is a basic method for prostate exam, due to its obscure position deep in the pelvis. On the other hand, penis and scrotal content are very available to physical examination, but thanks to proximity to surface of the skin, the high frequency ultrasound gives us clear picture of the interior of this organs and that is why we use this method for the confirmation of clinical diagnosis and in decision making for further treatment.