Publications by authors named "Katsanos K"

Objective: . Aim: To examine the level of medication adherence among individuals diagnosed with inflammatory bowel disease (IBD) in Greece and Cyprus and assess the demographic, clinical, and psychosocial variables affecting it.

Patients And Methods: Materials and Methods: An anonymous self-administered questionnaire was administered to adult patients attending hospitals and treatment centers in Greece and Cyprus.

View Article and Find Full Text PDF

Background Digital subtraction angiography and thrill palpation demonstrate limitations when used to assess the outcomes of angioplasty in autologous arteriovenous fistulas (AVFs). Purpose To investigate a new functional quantifiable index of successful angioplasty for failing AVFs using intraprocedural percutaneous US volume flow (VF) measurements. Materials and Methods This prospective, multicenter, single-arm, cohort clinical trial included consecutive patients with indications for fluoroscopically guided balloon angioplasty due to AVF dysfunction between June 2020 and May 2022.

View Article and Find Full Text PDF

Background: Infliximab monitoring correlates with improved outcomes in inflammatory bowel disease (IBD). We aimed to evaluate the association between serum infliximab trough levels (TLs) and therapeutic outcomes in Greek patients with Crohn's disease (CD) or ulcerative colitis (UC).

Methods: This cross-sectional study included consecutive adult patients with IBD receiving intravenous infliximab maintenance therapy at a Greek tertiary center.

View Article and Find Full Text PDF

Background/aim: This study aims to explore the role of NF-kB p65/p50 expression in patients with inflammatory bowel disease (IBD), those with irritable bowel syndrome (IBS) and normal controls.

Patients And Methods: Twenty patients with IBS, 19 subjects with IBD and 18 normal controls, who underwent colonoscopy, provided us with biopsies from the terminal ileum, cecum and rectum. Patients with IBS were categorized according to bowel habits.

View Article and Find Full Text PDF

To highlight possible correlations of type 2 diabetes mellitus (T2DM) with microscopic / macroscopic characteristics of colorectal cancer tissues, along with the expression of Ten-Eleven Translocation 2 (TET2) and glutathione-S-transferase pi (GST-pi) proteins.

View Article and Find Full Text PDF

The breadth and validity of the associations of nongenetic risk factors with celiac disease (CeD) are elusive in the literature. We aimed to evaluate which of these associations have strong epidemiological credibility and assessed presence and extent of potential literature biases. We systematically searched PubMed until April 2024 for systematic reviews and meta-analyses of studies examining associations between putative risk factors and CeD.

View Article and Find Full Text PDF

Objective: To compare one year outcomes after atherectomy, intravascular lithotripsy vs. plain balloon angioplasty before application of drug coated balloons for treating femoropopliteal atherosclerotic disease.

Data Sources: MEDLINE, EMBASE, and Cochrane Library were screened until May 2023 for randomised controlled trials.

View Article and Find Full Text PDF

The Renal Expert in Vascular Access (REVAC) is one of the four modules of the Nephrology Partnership for Advancing Technology in Healthcare (N-PATH) project, the first European-wide advanced training course in diagnostics and interventional nephrology, funded by Erasmus+ Knowledge Alliance, a European Commission program. The N-PATH primary goal was to train 40 young European nephrologists in both theoretical knowledge and practical skills related to interventional nephrology. The REVAC module focused on the crucial aspects of vascular access (VA) care in nephrology practice, as a complementary training path to the actual residency program.

View Article and Find Full Text PDF
Article Synopsis
  • - This study introduces a new method, FFR2D, for quickly and accurately calculating fractional flow reserve using routine 2D coronary angiograms, comparing its effectiveness to the traditional pressure wire measurement in assessing coronary artery stenosis.
  • - Conducted with 88 patients, the results showed that FFR2D had a strong correlation with the invasive FFR, achieving a diagnostic accuracy of 90.9%, with key metrics including 85.7% sensitivity and 93.3% specificity for identifying critical artery blockages.
  • - FFR2D outperformed the standard 50% diameter stenosis measurement in predictive ability, demonstrating a significantly higher area under the ROC curve, indicating its potential as a more reliable tool
View Article and Find Full Text PDF

Paradoxical embolism through the foramen ovale is a rare and devastating event requiring urgent treatment. Herein, we present the case of a 23-year-old male who presented with a pulmonary embolism complicated by a left renal artery paradoxical embolism. Urgent vacuum-assisted thrombo-aspiration restored normal perfusion of the left kidney within 5 hours.

View Article and Find Full Text PDF

Introduction: The study of time-related alterations of ultrasound-determined parameters during maturation, and the assessment of time to hemodynamic maturation, enabling early prediction of clinical eligibility, of hemodialysis autologous arteriovenous fistulae (AVF).

Methods: This is an observational, prospective, study of only AVF-eligible patients referred for access creation, from 02/2019 to 02/2022 (ClinicalTrials.gov identifier: NCT0473687).

View Article and Find Full Text PDF

Despite advancements in medication,managing inflammatory bowel disease (IBD) remains challenging, necessitatingalternative control methods. Gut-directed hypnotherapy, known for alleviating irritable bowel syndrome (IBS), is debated as an IBD management method. Anextensive search across PubMed, Cochrane Library, and Clinicaltrials.

View Article and Find Full Text PDF

We report the successful application of radioembolization (SIRT) in a 77-year-old man with end-stage renal disease on hemodialysis and repeated episodes of macroscopic hematuria due to a large renal cell carcinoma of the right kidney extending to liver segment VI. A compassionate SIRT therapy was performed with resin microspheres through the upper pole renal artery and the feeding segmental artery of liver segment VI. Hematuria was resolved after treatment, and 4 months later, a follow-up CT scan revealed tumor size reduction and complete tumor necrosis (Response Evaluation Criteria in Solid Tumors criteria).

View Article and Find Full Text PDF

Background: As acceptance of artificial intelligence [AI] platforms increases, more patients will consider these tools as sources of information. The ChatGPT architecture utilizes a neural network to process natural language, thus generating responses based on the context of input text. The accuracy and completeness of ChatGPT3.

View Article and Find Full Text PDF

Background: This real-world analysis evaluated iron therapy supplementation in inflammatory bowel disease patients with iron-deficiency anemia, considering disease progression and healthcare resource consumption.

Methods: A retrospective observational study was conducted using administrative databases of a pool of Italian healthcare entities, covering about 9.3 million beneficiaries.

View Article and Find Full Text PDF
Article Synopsis
  • A study compared the effectiveness of tofacitinib and ustekinumab as third-line treatments for patients with moderate to severe ulcerative colitis (UC) who did not respond to earlier therapies (anti-TNF and vedolizumab).
  • Out of 117 patients followed for about 11.6 months, 54% experienced disease progression, with ustekinumab being associated with a higher risk of progression compared to tofacitinib.
  • While tofacitinib showed better results in preventing disease progression, no major differences were noted in secondary outcomes or adverse events, highlighting the need for more extensive clinical trials to validate these findings.
View Article and Find Full Text PDF
Article Synopsis
  • Managing complex perianal fistulizing Crohn's disease is tough, but darvadstrocel, which uses fat-derived stem cells, shows promise in promoting healing and tissue regeneration.
  • A literature review identified several studies, including randomized controlled trials, that found darvadstrocel is more effective than a placebo in improving symptoms over time, with similar rates of side effects between the treatment and control groups.
  • While darvadstrocel seems to be a safe and effective option for treating complex perianal fistulas, further randomized clinical trials are necessary to confirm its efficacy and safety.
View Article and Find Full Text PDF

Background: Gastric cancer (GC) is one of the most common and aggressive types of cancer. Immune checkpoint inhibitors (ICIs) have proven effective in treating various types of cancer. The use of ICIs in GC patients is currently an area of ongoing research.

View Article and Find Full Text PDF

Objective: Aim: The aim of the study was to investigate the incidence of IBD in gastrointestinal surgery patients and record the disease's characteristics and treatment.

Patients And Methods: Materials and Methods: A search was carried out in the archives of the gastroenterology clinics of the University General Hospital of Ioannina and the General Hospital of Ioannina "G. Hatzikosta" in Greece.

View Article and Find Full Text PDF

Purpose: Implantable venous access ports are widely used in patients receiving chemotherapy, but there is still scarce evidence about any patient-reported outcome measures. This prospective randomized controlled trial examined the impact on patients' quality-of-life following the placement of an implantable port device for long-term chemotherapy treatment.

Method: A total of 120 chemotherapy naïve adult outpatients scheduled to receive chemotherapy (duration ≥12 weeks) for solid tissue tumors in a single academic oncology unit were randomly allocated (n = 60 in each arm) between radiologically guided insertion of an implantable venous access port (PORT arm) or standard repeated peripheral venous access (Control arm).

View Article and Find Full Text PDF

Background And Aims: Tofacitinib (TFB) appears to be effective in the treatment of ulcerative colitis (UC); however, available real-world studies are limited by cohort size. TFB could be an option in the treatment of acute severe ulcerative colitis (ASUC). We aimed to investigate efficacy and safety of TFB in moderate-to-severe colitis and ASUC.

View Article and Find Full Text PDF

Symptomatic central venous stenosis and occlusion remains the gordian knot of vascular access. Advances in techniques, like sharp recanalization, allowed for improved success rates in crossing these difficult lesions. There is also increasing evidence of new devices in treating central venous stenosis and, at the same time, improving the time needed between interventions.

View Article and Find Full Text PDF