Publications by authors named "F Wewalka"

Article Synopsis
  • Endoscopic submucosal dissection (ESD) is a minimally invasive procedure for removing benign and early malignant lesions from the gastrointestinal tract, with this study focusing on its success and safety in rectal cases performed by a specific endoscopist at Linz hospitals.
  • A total of 102 patients were analyzed, revealing an en bloc resection rate of 78.4%, a complication rate of 7.8%, and an average procedure time of 179 minutes, with approximately a quarter of cases showing carcinoma and some achieving oncologically curative resections.
  • A learning curve was noted in terms of the rate of lesions removed in healthy tissue and procedure time, indicating improvement over time, but not in the en bloc resection
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Background: Considering limited resources for follow-up due to COVID-19, we used biodegradable stents (BPBS) for a range of biliopancreatic diseases.

Aims: This observational multicenter study aimed to evaluate technical safety and give first insights into clinical utility.

Methods: Technical success, clinical success, and necessity of follow-up visits for BPBS placed at three Austrian tertiary care hospitals between April 2020 and January 2021 were retrospectively analyzed.

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Article Synopsis
  • Flexible diverticulotomy has proven to be a reliable treatment for Zenker's diverticulum, with a high technical success rate of 93.5% over a 10-year study period.
  • Despite the procedure's effectiveness, there were some complications, with 2.9% of cases requiring intensive care, yet no fatalities occurred.
  • The study highlights that outcomes improve with experience, suggesting that this procedure should be performed at high-volume medical centers to maximize safety and effectiveness.
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Background: () causes a diversity of gastric diseases. Rapid urease tests (RUT) are well established for the point-of-care, invasive diagnosis of infection. The study aimed to evaluate the diagnostic performance of a new liquid RUT, the preOx-HUT, within a prospective cohort of treatment-naïve patients.

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Objectives: We report on a large prospective, multicentre clinical investigation on inter- and intrapatient genetic variability for antimicrobial resistance of Helicobacter pylori.

Methods: Therapy-naive patients (n = 2004) who had undergone routine diagnostic gastroscopy were prospectively included from all geographic regions of Austria. Gastric biopsy samples were collected separately from antrum and corpus.

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