KFKlaudia Farkas

Klaudia Farkas

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Klaudia Farkas has a total of 112 co-authors. Here are the top co-authors by number of shared publications:


Latest Publications

  • Open Access

    The Role of Physical Activity and Physiotherapists in the Management of Inflammatory Bowel Disease: A Nationwide Cross-Sectional Survey

    by Zita Kovács, Péter Bacsur, Blanka Bernadett Kasza, Ákos Suhajda, Máté Pápista, Noémi Gálfalvi, Ákos Iliás, Bernadett Farkas, Tamás Resál, Klaudia Farkas, et al.

    Background/Objectives: Inflammatory bowel diseases (IBDs) cause gastrointestinal symptoms that affect patients’ quality of life. IBD improves with physical activity; however, fear of movement is a limiting factor. This study aimed to evaluate the impact of kinesiophobia and assess patients’ knowledge on the role of physical activity and physiotherapists in IBD management. Methods: Participants completed online questionnaires to evaluate demographic and clinical data, lifestyle, physical activity, joint complaints, and physiotherapy preferences. The Tampa Kinesiophobia Scale (TKS) was employed to assess kinesiophobia, and the Godin scale was used to assess regular physical activity. Results: Overall, 356 patients with IBD were analyzed. In total, 51% of the patients reported a decrease in physical activity. Of these, 93% have not consulted a physiotherapist, with 51% expressing a need for it. Meanwhile, 75% of the patients wanted additional information. Higher TKS scores were associated with CD, age, and joint pain. The level of kinesiophobia was high and negatively correlated with the amount of physical activity. Conclusions: Physiotherapists play an important role in patient education and influencing lifestyle in IBD. Their expertise is underutilized, and patients should be sufficiently informed regarding their illness. Integrating education and physiotherapy may reduce kinesiophobia and improve patients’ quality of life.

  • Open Access

    Evaluation of Long-Term Outcomes of Crohn’s Disease Complicated by Intra-Abdominal Abscess: A Retrospective International Cohort Study

    by Péter Bacsur, Sylwia Nemeczek, Rafał Filip, Fotios Fousekis, Konstantinos Mpakogiannis, Anna Kagramanova, Konstantinos Argyriou, Ploutarchos Pastras, Christos Triantos, Pál Miheller, et al.

    Background: Crohn’s disease complicated by intra-abdominal abscesses often requires surgery. Percutaneous drainage may prevent surgery, but optimal post-drainage management is unclear. We aimed to analyze the long-term outcomes of Crohn’s disease with intra-abdominal abscesses after intervention. Methods: Patients with penetrating Crohn’s disease and a single intra-abdominal abscess were enrolled in this multicenter, international, retrospective study after the detection of the abscess (baseline), with a minimum follow-up of 12 months. Those requiring urgent bowel resection were excluded. Patients were grouped by elective surgical need after successful (catheter insertion with effective drainage) percutaneous drainage (controls: no pre-resection drainage). The primary outcome was abscess recurrence. We also assessed stoma rate, post-procedural complications, hospitalizations, advanced treatment need, postoperative luminal recurrence, and need for re-drainage. Results: We studied 157 patients with Crohn’s disease (9 countries; males: 58%, median age: 32.4 [interquartile range: 25–39 years]); 89/157 underwent percutaneous drainage (median follow-up: 95.9 weeks [interquartile range: 58–104]). Abscess recurrence did not differ by drainage (p = 0.221). Abscess size was associated with advanced-treatment initiation (Odds ratio: 0.978; 95% confidence interval: 0.960–0.997, p = 0.023) and postoperative luminal recurrence (Odds ratio: 1.044, 95% confidence interval: 1.012–1.078, p = 0.007). Time to resection was longer after drainage, and ROC analysis raised predictive value for re-drainage (16.6 weeks post-drainage; AUC = 0.82, 95% confidence interval: 0.73–0.92). Patients without drainage had more post-procedural complications. Conclusions: Abscess size should guide management. Delayed resection may increase re-drainage odds, whereas surgery alone may have higher complication rates. Percutaneous drainage can safely postpone resection.

  • A narrative review on the frequency, pathophysiology and management of bowel urgency associated with ulcerative colitis

    by Emese Ivány, Bernadett Farkas, Péter Bacsur, Mariann Rutka, Noémi Gálfalvi, Klaudia Farkas, Zoltán Szepes, Tamás Molnár


  • Open Access

    Real-World Effectiveness and Safety of Selective JAK Inhibitors in Ulcerative Colitis and Crohn’s Disease: A Retrospective, Multicentre Study

    by Bernadett Farkas, Talat Bessissow, Jimmy K. Limdi, Karishma Sethi-Arora, Anna Kagramanova, Oleg Knyazev, Cristina Bezzio, Alessandro Armuzzi, Milan Lukas, George Michalopoulos, et al.

    Background/Objectives: Data on the real-world effectiveness and safety of selective JAK inhibitors (JAKis) in ulcerative colitis (UC) and Crohn’s disease (CD) are limited. Methods: We conducted a multicentre, retrospective study to assess clinical, biochemical, and endoscopic outcomes of selective JAKis in bio-experienced UC and CD. Results: A total of 246 patients (mean age: 40.5 ± 14.5 years; 131 UC and 115 CD) were included with a median follow-up of 7.5 months. Among the CD patients receiving upadacitinib (n = 115), 76.2% achieved clinical remission (CR) at week 12. Furthermore, 59.5% of the upadacitinib-treated UC patients (n = 100) experienced CR at week 8. Corticosteroid-free CR (CSFCR) was achieved by 76.9% of the CD patients and 80.6% of the UC patients at week 24, while 50.0% and 36.1% experienced endoscopic remission. At week 52, 66.7% of the CD and 86.2% of the UC patients achieved CSFCR, whereas 54.5% and 52.9% had endoscopic remission. In UC, the effectiveness of upadacitinib was not compromised by prior tofacitinib failure, while the upadacitinib-treated CD patients with stricturing and penetrating disease were less likely to achieve CR by the end of the induction phase (p = 0.04). C-reactive protein (p[CD] < 0.0001; p[UC] < 0.0001) and faecal calprotectin (p[CD] < 0.0001; p[UC] = 0.02) decreased significantly in both patient groups as early as week 2. Among the filgotinib-treated UC patients (n = 31), 28.6% were in CR at week 12. At week 24 and 52, 59.1% and 60% achieved CSFCR, while 0.0% and 20.0% had endoscopic remission. Both C-reactive protein (p = 0.04) and faecal calprotectin (p = 0.04) decreased significantly by week 12. Hyperlipidaemia (9.7–9.8%) was the most common adverse event. Conclusions: Selective JAKis are rapidly effective and safe for treating refractory, moderate-to-severe CD and UC.


  • Open Access

    Shotgun Analysis of Gut Microbiota with Body Composition and Lipid Characteristics in Crohn’s Disease

    by Péter Bacsur, Tamás Resál, Bernadett Farkas, Boldizsár Jójárt, Zoltán Gyuris, Gábor Jaksa, Lajos Pintér, Bertalan Takács, Sára Pál, Attila Gácser, et al.

    Alterations to intestinal microbiota are assumed to occur in the pathogenesis of inflammatory bowel disease (IBD). This study aims to analyze the association of fecal microbiota composition, body composition, and lipid characteristics in patients with Crohn’s disease (CD). In our cross-sectional study, patients with CD were enrolled and blood and fecal samples were collected. Clinical and endoscopic disease activity and body composition were assessed and laboratory tests were made. Fecal bacterial composition was analyzed using the shotgun method. Microbiota alterations based on obesity, lipid parameters, and disease characteristics were analyzed. In this study, 27 patients with CD were analyzed, of which 37.0% were obese based on visceral fat area (VFA). Beta diversities were higher in non-obese patients (p < 0.001), but relative abundances did not differ. C. innocuum had a higher abundance at a high cholesterol level than Bacillota (p = 0.001, p = 0.0034). Adlercreutzia, B. longum, and Blautia alterations were correlated with triglyceride levels. Higher Clostridia (p = 0.009) and B. schinkii (p = 0.032) and lower Lactobacillus (p = 0.035) were connected to high VFA. Disease activity was coupled with dysbiotic elements. Microbiota alterations in obesity highlight the importance of gut microbiota in diseases with a similar inflammatory background and project therapeutic options.


  • Open Access

    Risk Factors and Interpretation of Inconclusive Endoscopic Ultrasound-Guided Fine Needle Aspiration Cytology in the Diagnosis of Solid Pancreatic Lesions

    by Renáta Bor, Béla Vasas, Anna Fábián, Mónika Szűcs, Zsófia Bősze, Anita Bálint, Mariann Rutka, Klaudia Farkas, Tibor Tóth, Tamás Resál, et al.

    Background: The inconclusive cytological findings of endoscopic ultrasound-guided fine needle aspiration (EUS-FNA) remain a major clinical challenge and often lead to treatment delays. Methods: Patients who had undergone EUS-FNA sampling for solid pancreas lesions between 2014 and 2021 were retrospectively enrolled. The “atypical” and “non-diagnostic” categories of the Papanicolaou Society of Cytopathology System were considered inconclusive and the “negative for malignancy” category of malignancy was suspected clinically. We determined the frequency and predictors of inconclusive cytological finding. Results: A total of 473 first EUS-FNA samples were included, of which 108 cases (22.83%) were inconclusive. Significant increases in the odds of inconclusive cytological findings were observed for lesions with a benign final diagnosis (OR 11.20; 95% CI 6.56–19.54, p < 0.001) as well as with the use of 25 G FNA needles (OR 2.12; 95% CI 1.09–4.01, p = 0.023) compared to 22 G needles. Furthermore, the use of a single EUS-FNA technique compared to the combined use of slow-pull and standard suction techniques (OR 1.70; 95% CI 1.06–2.70, p = 0.027) and less than three punctures per procedure led to an elevation in the risk of inconclusive cytology (OR 2.49; 95% CI 1.49–4.14, p < 0.001). Risk reduction in inconclusive cytology findings was observed in lesions between 2–4 cm (OR 0.40; 95% CI 0.23–0.68, p = 0.001) and >4 cm (OR 0.16; 95% CI 0.08–0.31, p < 0.001) compared to lesions ≤2 cm. Conclusions: The more than two punctures per EUS-FNA sampling with larger-diameter needle (19 G or 22 G) using the slow-pull and standard suction techniques in combination may decrease the probability of inconclusive cytological findings.


  • Az immunszuppresszív és biológiai terápia időzítése gyulladásos bélbetegségben

    by Bernadett Farkas, Tamás Molnár, Klaudia Farkas

    A gyulladásos bélbetegségek (IBD) kezelése drámai változáson ment keresztül az immunszuppresszív és a biológiai terápia megjelenésével. A legújabb szakirodalmi adatok arra utalnak, hogy a kórkép természetes lefolyására gyakorolt hatásukat bevezetésük időzítése is befolyásolja. Ugyanakkor továbbra is kihívást jelent azon betegek azonosítása, akik számára a korai hatékony kezelés biztosítaná a legkedvezőbb kimenetelt, megóvva az enyhébb betegség-fenotípust mutató egyéneket a felesleges kockázatoktól és potenciális mellékhatásoktól. Ezen közlemény célja, hogy bemutassa a jelenleg Magyarországon elérhető, középsúlyos-súlyos aktivitást mutató IBD-ben alkalmazható terápiás lehetőségeket, és összefoglalja az ezek optimális időzítésével kapcsolatos jelenlegi ismereteinket, valamint javaslatot tegyen egy, a mindennapi betegellátásban használható kezelési algoritmusra.

  • Open Access

    Functional Anatomical Changes in Ulcerative Colitis Patients Determine Their Gut Microbiota Composition and Consequently the Possible Treatment Outcome

    by Anita Bálint, Klaudia Farkas, Orsolya Méhi, Bálint Kintses, Bálint Márk Vásárhelyi, Eszter Ari, Csaba Pál, Tamara Madácsy, József Maléth, Kata Judit Szántó, et al.

    Gut microbial composition alters in some special situations, such as in ulcerative colits (UC) after total proctocolectomy and ileal pouch-anal anastomosis (IPAA) surgery. The aim of our study was to determine the composition of the intestinal microbiome in UC patients after IPAA surgery, compared with UC patients, familial adenomatous polyposis (FAP) patients after IPAA surgery and healthy controls. Clinical data of patients, blood and faecal samples were collected. Faecal microbiota structure was determined by sequencing the V4 hypervariable region of the 16S rRNA gene. Overall, 56 patients were enrolled. Compared to the Healthy group, both the Pouch active and UC active groups had higher Enterobacteriaceae, Enterococcaceae and Pasteurellaceae abundance. The Pouch and UC groups showed distinct separation based on their alpha and beta bacterial diversities. The UC group had higher Prevotellaceae, Rikenellaceae, Ruminococcaceae abundance compared to the Pouch active group. Pouch and FAP participants showed similar bacterial community composition. There was no significant difference in the bacterial abundance between the active and inactive subgroups of the Pouch or UC groups. Gut microbiome and anatomical status together construct a functional unit that has influence on diversity, in addition to intestinal inflammation that is a part of the pathomechanism in UC.


  • Frequency and characteristics of infusion reactions during biosimilar infliximab treatment in inflammatory bowel diseases: results from Central European nationwide cohort

    by Anita Bálint, Mariann Rutka, Zsuzsanna Végh, Zsuzsanna Kürti, Krisztina B. Gecse, János Banai, László Bene, Beáta Gasztonyi, Tünde Kristóf, László Lakatos, et al.

    Background: Safety data of the ‘real life’ use of an infliximab biosimilar, CT-P13 in inflammatory bowel disease (IBD) are still lacking. Our aim was to assess the frequency and characteristics of infusion reactions during CT-P13 therapy in 13 Hungarian and 1 Czech IBD centres. Methods: Clinical and safety data was registered at fixed appointments. Trough levels and anti-drug antibody (ADA) concentration were measured by ELISA. Association between demographic, clinical, laboratory parameters and infusion reaction rates were evaluated statistically. Results: Three hundred and eighty-four IBD patients were included. Twenty-eight Hungarian IBD patients (9.6%) developed infusion reaction during the treatment, 64.3% of them was previously exposed to anti TNF therapy. No infusion reaction occurred in the Czech population. CT-P13 therapy had to be stopped in 17 patients who developed infusion reaction and was switched to adalimumab in 12 patients. However in 39.3% of patients developing infusion reaction CT-P13 therapy was continued with the use of premedication. Cumulative ADA positivity rates were 8.7%, 19.3%, and 28.0% at weeks 0, 14, and 30. Previous anti-TNF-alpha exposure (30% vs. 3.1%, p < 0.001, OR 6.3 (2.7–14.6)) and ADA positivity (32.6% vs. 4.1%, p < 0.001, OR 19(5–73)) during the induction therapy were predictive factors for infusion reactions. Conclusions: Patients with previous exposure to anti-TNF-alpha and ADA positivity during the induction therapy were more likely to develop infusion reactions.