Publications by authors named "Benito Velayos"

Objectives: To search for parameters susceptible to optimization when performing capsule endoscopy (CE) in a third level hospital with high volume and experience in this test.

Patients And Methods: Retrospective observational study, including 1325 CEs performed between 2017 and 2022. Overall diagnostic yield, effective diagnostic yield, by indication, place of request and waiting list, as well as complete examination rate and cleansing degree were analyzed.

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  • A study was conducted to evaluate the effectiveness and safety of ustekinumab and vedolizumab in treating complex perianal fistula in patients with Crohn's disease.
  • Out of 155 patients analyzed, ustekinumab achieved a remission rate of 54%, while vedolizumab had a remission rate of 46%, with some patients relapsing during the follow-up period.
  • Both medications exhibited mild adverse events and showed favorable safety profiles, indicating their potential effectiveness in managing this condition.
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  • - The management of Helicobacter pylori infection involves a combination of proton pump inhibitors (PPIs) and antibiotics to effectively eradicate the bacteria, as evaluated by the European Registry on Helicobacter pylori management (Hp-EuReg).
  • - Analysis of data from 36,579 patients across five countries revealed that 14-day treatments with specific antibiotic combinations and high-dose PPIs resulted in optimal effectiveness, while 10- and 14-day therapies with high-dose PPIs were also successful.
  • - The study concludes that for first-line treatment, the use of high-dose PPIs is recommended, especially in certain combinations and durations, while shorter 7-day therapies showed suboptimal results.
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Background And Aims: Inflammatory bowel disease (IBD) is a prevalent chronic noncurable disease associated with profound metabolic changes. The discovery of novel molecular indicators for unraveling IBD etiopathogenesis and the diagnosis and prognosis of IBD is therefore pivotal. We sought to determine the distinctive metabolic signatures from the different IBD subgroups before treatment initiation.

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  • A study evaluated the effectiveness and safety of single capsule bismuth quadruple therapy (scBQT) administered three times a day, as opposed to the recommended four times a day schedule, focusing on ease of adherence.
  • Out of 3,712 cases analyzed, the three times a day regimen showed a higher cure rate of 94% compared to 91% for the four times a day schedule, though adherence and safety were similar.
  • The findings suggest that the three times a day scBQT regimen is more effective, with factors like treatment adherence and the type of proton pump inhibitor used being significant predictors of infection cure.
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Rates of new dysplastic lesions or cancer progression after first dye chromoendoscopy in the era of high-definition endoscopy have yet to be determined.  A multicenter, population-based, retrospective cohort study was performed in seven hospitals in Spain. Patients with inflammatory bowel disease and fully resected (R0) dysplastic colon lesions under surveillance with high-definition dye-based chromoendoscopy were sequentially enrolled between February 2011 and June 2017, with a minimum endoscopic follow-up of 36 months.

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Background: Clinical trials have demonstrated the efficacy and safety of ustekinumab in Crohn's disease (CD). However, more data are necessary on the effectiveness of ustekinumab in bio-naïve patients in real-life studies.

Objectives: The aim of our study was to evaluate the effectiveness and safety of ustekinumab in patients with CD refractory or intolerant to conventional therapy and without previous exposure to biological drugs.

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 Chromoendoscopy with targeted biopsy is the technique of choice for colorectal cancer screening in longstanding inflammatory bowel disease. We aimed to analyze results of a chromoendoscopy screening program and to assess the possibility of identifying low-risk dysplastic lesions by their endoscopic appearance in order to avoid histological analysis.  We retrospectively reviewed chromoendoscopies performed between February 2011 and June 2017 in seven Spanish hospitals in a standardized fashion.

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Introduction: The development of novel mechanical endoscopic closure systems allows now the management of some gastrointestinal fistula types in a minimally invasive way. However, the correct location of the fistulous tract is essential to achieve successful endoscopic closure.

Case Report: A 69-year-old woman with high risk for surgery presented with recurrent cystitis, pneumaturia, and enteruria 2 months after medical-treated diverticulitis.

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Background: Chronic diarrhea and functional abdominal pain (FAP) in childhood could be an early manifestation of adult irritable bowel syndrome (IBS). The aim of this study was to investigate the presence of chronic functional digestive symptoms in childhood, interviewing adult patients diagnosed with IBS, in an attempt to establish a relationship between them.

Methods: By means of a questionnaire, the history of colic, chronic diarrhea, functional abdominal pain, constipation and migraine in childhood, was analyzed in patients diagnosed with IBS according to the current Rome III criteria, and in control patients without known chronic digestive disorders.

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Aims: The aim of this work is to investigate the accuracy of the urea breath test (UBT) performed immediately after emergency endoscopy in peptic ulcer bleeding (PUB).

Methods: Urea breath test was carried out right after emergency endoscopy in patients with PUB. The accuracy of this early UBT was compared to a delayed one after hospital discharge that was considered the gold standard.

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Introduction: Hepatic fibrosis can be assessed through serum markers or by the implementation of new non-invasive techniques, such as elastography. We must know patients' opinion on percutaneous liver biopsy (PLB) when it comes to comparing it with other procedures.

Aims: To know the point of view of patients undergoing a PLB with regard to information provided to them, as well as the procedures and biopsy consequences.

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Intestinal alterations in IBD are triggered and maintained by an overexpression of proinflammatory cytokines. Additionally, increased immune activation has been found in the adjacent intestinal areas without displaying any apparent histological alterations, however, the regulatory environment is not well established. Biopsy specimens from patients with ulcerative colitis (UC) and Crohn's disease (CD), from both affected and unaffected areas, and also from a group of colonic biopsies from healthy controls, were included in our study.

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Meckel's diverticulum is the most prevalent congenital abnormality of the gastrointestinal tract. Bleeding from Meckel's diverticulum is the most common clinical presentation, especially in childhood. In adults, manifestations include a broad spectrum of symptoms ranging from an incidental finding in surgery, iron deficiency anemia of unknown etiology, and acute abdomen due to mechanical complications of the diverticulum.

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The objective of this work was to study the influence of insulin resistance and adipokines on the grade of steatosis in patients with NAFLD (nonalcoholic fatty liver disease) diagnosed by liver biopsy. A sample of 24 NAFLD patients was analyzed in a cross-sectional study. All patients with a two-week weight-stabilization period before recruitment were enrolled.

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