Vedran Tomasic

Dr. Vedran Tomasic

orcid

Research Focus & Metrics

Academic Career Length

18Years (2009-Present)

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

Representative Publications

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1 January 2009 in World Journal of Gastroenterology
Verified
Journal Article
Open access
MDMarko Duvnjak
Marko Duvnjak
NBNeven Baršić
Neven Baršić
VTVedran Tomasic
Vedran Tomasic
ILIvan Lerotić
Ivan Lerotić
The spectrum of non-alcoholic fatty liver disease (NAFLD) ranges from simple steatosis through steatohepatitis to advanced fibrosis and cirrhosis. Although the reason why only a minority of patients develop progressive forms of disease still remains largely unclear, recent research has identified genetic factors as a possible basis for this variation in disease presentation. Most of the studies have been focused on finding associations between advanced disease forms and selected single nucleotide polymorphisms in genes encoding various proteins involved in disease pathogenesis. Although there are many limitations regarding the study design and interpretation of published data, further carefully planned studies together with implementation of new genetic technologies will likely bring new insights into disease pathogenesis and potential benefits to the management of patients with NAFLD.


12 November 2025 in Pharmaceuticals
Verified
Journal Article
Open access
PDF file
Marin GolčićMarin Golčić
Marin Golčić
LRLaura Radoš
Laura Radoš
ISIva Skočilić
Iva Skočilić
IBIvona Badovinac
Ivona Badovinac
GHGoran Hauser
Goran Hauser
IMIvana Mikolasevic
Ivana Mikolasevic
Background/Objectives: Immune checkpoint inhibitors (ICI) represent a significant breakthrough in cancer management, but they can cause adverse effects such as immune-mediated colitis (IMC). The standard first-line treatment is corticosteroids, and second-line treatment is infliximab or vedolizumab. However, a proportion of immune-mediated colitis (IMC) cases are refractory to immunosuppressive treatment, which has led to the exploration of novel approaches such as fecal microbiota transplantation. Methods: We present two patients who both developed grade III IMC following application of durvalumab and pembrolizumab, respectively. Both patients were refractory to corticosteroid therapy, while the first one also showed no improvement to infliximab. We performed two separate applications of FMT on both patients, from different donors, as a rescue treatment. Results: After unsuccessful immunosuppressive treatment and following rescue FMT, both patients demonstrated a rapid and sustained improvement in inflammatory markers, clinical symptoms, quality-of-life scores, and colonoscopy findings, without additional immunosuppressive treatment. Conclusions: FMT appears to be safe and a potentially effective treatment option for patients with refractory IMC both as second- and third-line therapy options. Continued efforts toward rigorous donor screening, use of standardized biobanks, and standardizing FMT protocols will further enhance safety and reproducibility.

11 December 2024
Verified
Book Chapter
Open access
PDF file
VTVedran Tomasic
Vedran Tomasic
ABAlen Bišćanin
Alen Bišćanin
DKDominik Kralj
Dominik Kralj
PĆPetra Ćaćić
Petra Ćaćić
DKDoris Ogresta Kordej
Doris Ogresta Kordej
The global incidence and age-standardized prevalence rate of ulcerative colitis (UC) is increasing worldwide. It is a debilitating and lifelong inflammatory disease affecting both pediatric and adult patients. Thus, it is important to focus on modern treat-to-target approach, based on a tight control of the disease with close monitoring through interval assessments and modification of the treatment. Endoscopy remains the key method for UC assessment, but recent guidelines focus on implementation of non-invasive methods for UC diagnosis and management such as biomarkers (C-reactive protein, fecal calprotectin, and fecal lactofferin) and imaging methods (intestinal ultrasound). We summarize the diagnostic performance of non-invasive tests and present current evidence-based non-invasive strategy recommendations for UC monitoring.

12 July 2025 in Healthcare
Verified
Journal Article
Open access
PDF file
ABAlen Bišćanin
Alen Bišćanin
LPLeon Palac
Leon Palac
ZDZdravko Dorosulić
Zdravko Dorosulić
DKDominik Kralj
Dominik Kralj
PĆPetra Ćaćić
Petra Ćaćić
VTVedran Tomasic
Vedran Tomasic
Background/Objectives: Inflammatory bowel disease (IBD) is a chronic gastrointestinal disorder marked by relapsing episodes of gastrointestinal inflammation, potentially causing severe symptoms. These unpredictable acute episodes, paired with chronic disabilities, such as fatigue and malabsorption, and extensive pharmacological and surgical treatments, can severely impact patients’ quality of life. This study aimed to assess which aspects of the patients’ lives IBD impacts, and how IBD patients perceive their disease. Methods: All IBD patients who had an appointment in our tertiary centre from 10 October 2022 to 21 February 2023, were invited to complete anonymous questionnaires. The questionnaires used were IBDQ-32, WPAI, and IBD Disk, all designed specifically to assess the IBD patients’ quality of life. Results: The questionnaires were completed by a total of 159 participants, 51% of whom were males, 47.9% who had UC, and 49.4% who had been or were currently treated with biologics. There was no statistically significant difference in the answers from patients with CD compared to UC, as well as those treated with conventional therapies compared to those with advanced options. Most of them considered their health to be good, but only a few (12.8%) claimed, with absolute certainty, that their health was at the level of healthy individuals, and only 13 (8.3%) claimed their health was excellent. A total of 95 (60.1%) participants expressed at least minor limitations when performing strenuous activities, but lighter forms of activities were not affected as much by the disease. A significant portion (48.7%) of the participants believed they were exposed to more stress than others, and their current pharmacological therapy was the cause of fear in 26.5%. A total of 119 (75.3%) participants believed that the disease affected their lives at least mildly during remission. Conclusions: Our study showed that IBD patients have diminished quality of life, not only in the periods of active disease but also during clinical remission. The decline in quality of life was not solely attributed to physical symptoms, as previously thought. Other factors, such as mental health issues, were found to impact quality of life as well. We firmly believe that restoring quality of life should be emphasised in guidelines as one of the most important therapeutic goals.

15 March 2022 in Turkish Journal of Gastroenterology
Verified
Journal Article
Closed access
DHDavor Hrabar
Davor Hrabar
PĆPetra Ćaćić
Petra Ćaćić
ABAlen Bišćanin
Alen Bišćanin
VTVedran Tomasic
Vedran Tomasic
DKDominik Kralj
Dominik Kralj
TBToni Babarović
Toni Babarović
Background: Severe acute respiratory syndrome coronavirus 2 pandemic is affecting public health systems and mental health significantly. Patients with inflammatory bowel disease are witnessing vigorous organizational changes in inflammatory bowel disease centers and experiencing all psychosocial effects of the crisis. We conducted a single-center cross-sectional study in order to assess inflammatory bowel disease patients’ concerns, behavior, and satisfaction with provided healthcare during severe acute respiratory syndrome coronavirus 2 pandemic. Methods: All inflammatory bowel disease patients treated in our center from April 1 to June 1, 2020, were invited to fulfill an anonymous online questionnaire. Results: A total of 132 participants have completed the questionnaire, 63.2% were female, 57.9% had Crohn’s disease (CD) During the first wave of the pandemic, 74.2% of participants perceived themselves as a high-risk group for acquiring coronavirus disease 2019 only because they suffered from inflammatory bowel disease, and 66.2% thought inflammatory bowel disease medications make them more susceptible to coronavirus disease 2019. This especially concerned patients treated with biologics (B = 2.068, P < .01). Females were more stressed (B = −1.451, P < .01) and concerned (B = −1.488, P < .01) about the pandemic, and they also reported more potential benefits from professional psychological help (B = −2.664, P = .02). Six patients (5.3%) discontinued inflammatory bowel disease therapy on their own initiative. Seventy-eight (68.4%) patients were completely satisfied and 14 (12.3%) were partially satisfied with the quality of healthcare provided in our inflammatory bowel disease center. Conclusion: Female inflammatory bowel disease patients tend to be more emotionally vulnerable during severe acute respiratory syndrome coronavirus 2 pandemic. Although psychological support should be continuously available to all inflammatory bowel disease patients, female gender may warrant special attention. Providing patients with adequate and early information during pandemic probably leads to better compliance and higher satisfaction. Cite this article as: Hrabar D, Cacic P, Biscanin A, et al. IBD patients’ perception of severe acute respiratory syndrome coronavirus 2 pandemic and satisfaction with provided healthcare: A cross-sectional study. Turk J Gastroenterol. 2022;33(3):190-195.