Publications by authors named "Gloria Fernandez Esparrach"

Background And Objectives: Esophageal squamous cell carcinomas (ESCC) are often accompanied by head and neck squamous cell carcinoma (HNSCC) and vice versa. Our study aimed to describe the prevalence of HNSCC in patients with ESCC, the chronology of appearance and the impact on survival.

Methods: A retrospective review was carried out through a computerized database of patients diagnosed with ESCC at Hospital Clinic of Barcelona between January 1999 and June 2019.

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Polyps are defined as luminal lesions that project into the mucosal surface of the gastrointestinal tract and are characterized according to their morphological and histological features [...

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Article Synopsis
  • - Colorectal cancer (CRC) is a leading cause of death globally, and early detection of polyps is crucial for reducing mortality and improving diagnostic efficiency.
  • - This study introduces a complete validation framework and evaluates various techniques for detecting, segmenting, and classifying polyps, finding that most methods perform well in detection and segmentation but struggle with classification.
  • - The research emphasizes the need for further advancements in polyp classification to support clinicians effectively during procedures, proposing a standardized method to assess and compare different approaches in the field.
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Helicobacter pylori (Hp) is the main trigger of chronic gastric atrophy and the main leading cause of gastric cancer. Hp infects the normal gastric mucosa and can lead to chronic inflammation, glandular atrophy, intestinal metaplasia, dysplasia and finally adenocarcinoma. Chronic inflammation and gastric atrophy associated with Hp infection appear initially in the distal part of the stomach (the antrum) before progressing to the proximal part (the corpus-fundus).

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  • This study assessed how an AI clinical decision support system affected the diagnostic performance and confidence of endoscopists evaluating Barrett's esophagus (BE) using standardized endoscopy videos.
  • The study involved 22 endoscopists analyzing 96 videos, comparing assessments with and without the AI system for its impact on detecting Barrett's esophagus-related neoplasia (BERN).
  • Results indicated that while AI outperformed human experts in sensitivity, specificity, and accuracy, non-expert endoscopists showed notable improvement when using AI, suggesting that while AI can enhance decision-making, various factors may affect how endoscopists incorporate AI recommendations.
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MR1 : ESGE recommends the following standards for Barrett esophagus (BE) surveillance:- a minimum of 1-minute inspection time per cm of BE length during a surveillance endoscopy- photodocumentation of landmarks, the BE segment including one picture per cm of BE length, and the esophagogastric junction in retroflexed position, and any visible lesions- use of the Prague and (for visible lesions) Paris classification- collection of biopsies from all visible abnormalities (if present), followed by random four-quadrant biopsies for every 2-cm BE length.Strong recommendation, weak quality of evidence. MR2:  ESGE suggests varying surveillance intervals for different BE lengths.

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  • There are clear guidelines for hereditary diffuse gastric cancer, but not for familial intestinal gastric cancer (FIGC), leading to uncertainty about how to check for it.
  • A study in Spain looked at families with FIGC to find out how often they should have endoscopies (a test doctors use to look at the stomach).
  • They found that many people in these families had early signs of stomach cancer and that the bacteria Helicobacter pylori increases the risk of those signs appearing.
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Background: Capsule endoscopy (CE) is the first-choice exploration in case of overt small bowel bleeding (SBB). An early CE is known to increase diagnostic yield, but long reading times may delay therapeutics. The study evaluates the diagnostic performance of the artificial intelligence tool TOP100 in patients with overt SBB undergoing early CE with Pillcam SB3.

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Background And Aims: Colonoscopy is currently the most effective way of detecting colorectal cancer and removing polyps, but it has some drawbacks and can miss up to 22% of polyps. Microwave imaging has the potential to provide a 360° view of the colon and addresses some of the limitations of conventional colonoscopy. This study evaluates the feasibility of a microwave-based colonoscopy in an in vivo porcine model.

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Background And Objectives: There are few scales with prospective validation for the assessment of the upper gastrointestinal mucosal cleanliness during an esophagogastroduodenoscopy (EGD). The aim of this study was to develop a valid and reproducible cleanliness scale for use during an EGD.

Methods: We developed a cleanliness scale (Barcelona scale) with a score (0-2 points) of five segments of the upper gastrointestinal tract with thorough cleaning techniques (esophagus, fundus, body, antrum, and duodenum).

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Three percent of patients with pancreatic ductal adenocarcinoma (PDAC) present a germline pathogenic variant (GPV) associated with an increased risk of this tumor, being one of the genes associated with the highest risk. There is no clear consensus on the recommendations for surveillance in GPV carriers, although the latest guidelines from the International Cancer of the Pancreas Screening Consortium recommend annual endoscopic ultrasound (EUS) or magnetic resonance imaging (MRI) regardless of family history. Our aim is to describe the findings of the PDAC surveillance program in a cohort of healthy GPV heterozygotes.

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Introduction And Aims: The outcomes of endoscopic submucosal dissection (ESD) in the esophagus have not been assessed in our country. Our primary aim was to analyze the effectiveness and safety of the technique.

Material And Methods: Analysis of the prospectively maintained national registry of ESD.

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Helicobacter pylori (H. pylori) infection is highly prevalent in our environment and is associated with highly relevant gastric disease, both benign and malignant. The gold standard for diagnosis is histological confirmation by biopsy.

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Background: Barrett's esophagus (BE) is an entity with a known histological progression to malignancy. The insulin-like growth factor (IGF) system is involved in the carcinogenesis through obesity-related mechanisms that include IGF and it has been associated with several types of cancer.

Objectives: To evaluate the serological levels of IGF-1 and IGFBP-3 in patients with BE and esophageal adenocarcinoma.

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Article Synopsis
  • Current surveillance methods for Barrett's esophagus (BE) using standard forceps biopsies (FBs) can miss important dysplasia, prompting a study to evaluate wide-area transepithelial sampling (WATS) as a potential replacement or supplement for FBs.
  • In a multicenter trial involving 172 patients, both WATS and FB techniques were compared for detecting high-grade dysplasia (HGD) and esophageal adenocarcinoma (EAC), with results showing that WATS could detect some cases missed by FBs.
  • While the combination of WATS and FB showed a significant overall increase in detection rates, no significant difference was found between the two methods when they were used separately for identifying HGD/EAC
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(1) Background: Fecal calprotectin (FC) correlates well with colonic inflammatory activity of Crohn’s disease (CD); data about relation of FC and small bowel (SB) lesions are still contradictory. The main aim was to analyze the relationship between FC levels and SB inflammatory activity in patients with established or suspected Crohn’s disease, assessed by small bowel capsule endoscopy (SBCE) or magnetic resonance enterography (MRE). (2) Methods: Two cohorts of patients were included: 1.

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 Artificial intelligence is currently able to accurately predict the histology of colorectal polyps. However, systems developed to date use complex optical technologies and have not been tested in vivo. The objective of this study was to evaluate the efficacy of a new deep learning-based optical diagnosis system, ATENEA, in a real clinical setting using only high-definition white light endoscopy (WLE) and to compare its performance with endoscopists.

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Background: Motorized Spiral Enteroscopy (MSE) reduces procedure time and increases insertion depth into the small bowel; however, there is scarce evidence on factors affecting MSE efficacy.

Aims: To evaluate diagnostic yield and adverse events of MSE including patients with prior major abdominal surgery.

Methods: A prospective observational study was conducted on patients undergoing MSE from June 2019 to December 2021.

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Unlabelled: BACKGROUND : It is unknown whether there is an advantage to using the wet-suction or slow-pull technique during endoscopic ultrasound-guided fine-needle biopsy (EUS-FNB) with new-generation needles. We aimed to compare the performance of each technique in EUS-FNB.

Methods: This was a multicenter, randomized, single-blind, crossover trial including patients with solid lesions of ≥ 1 cm.

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