The Effect of Oral Simethicone in a Bowel Preparation in a Colorectal Cancer Screening Colonoscopy Setting: A Randomized Controlled Trial.

Introduction: Current guidelines suggest adding oral simethicone to bowel preparation for colonoscopy. However, its effect on key quality indicators for screening colonoscopy remains unclear. The primary aim was to assess the rate of adequate bowel preparation in split-dose high-volume polyethylene glycol (PEG), with or without simethicone.

Cap-Assisted Endoscopic Mucosal Resection for Rectal Neuroendocrine Tumors: An Effective Option.

Introduction: The incidence of rectal neuroendocrine tumors (r-NETs) is increasing, and most small r-NETs can be treated endoscopically. The optimal endoscopic approach is still debatable. Conventional endoscopic mucosal resection (EMR) leads to frequent incomplete resection.

Can white-light endoscopy or narrow-band imaging avoid biopsy of colorectal endoscopic mucosal resection scars? A multicenter randomized single-blind crossover trial.

BACKGROUND : Current guidelines suggest that routine biopsy of post-endoscopic mucosal resection (EMR) scars can be abandoned, provided that a standardized imaging protocol with virtual chromoendoscopy is used. However, few studies have examined the accuracy of advanced endoscopic imaging, such as narrow-band imaging (NBI) vs. white-light endoscopy (WLE) for prediction of histological recurrence.

Vaginal lesion as first manifestation of colorectal disease.

A 73-year-old woman presented at Gyneacology Consultation with vaginal sensation of a lump. Physical examination revealed a vaginal exophytic lesion with 3 cm located at the right inner lip. The lesion was biopsied and histologic examination revealed infiltration by a mucinous adenocarcinoma.

Endoscopic submucosal dissection: a country dissemination experience and outcomes.

Objective: An increasing use of endoscopic submucosal dissection (ESD) has been reported in Western countries, although some differences in training schemes and outcomes have been described. We aimed to report the training model, implementation, and outcomes of ESD in Portugal.

Methods: All endoscopists trained at our center from our country (n = 9) were invited to a survey regarding: (a) training period; (b) ESD outcomes and (c) implementation of ESD in each respective center.

Gastric Hyperplastic Polyps: A Benign Entity? Analysis of Recurrence and Neoplastic Transformation in a Cohort Study.

Introduction: Hyperplastic polyps represent 30-93% of all gastric epithelial polyps. They are generally detected as innocuous incidental findings; however, they have a risk of neoplastic transformation and recurrence. Frequency and risk factors for neoplastic transformation and recurrence are not well established and are fields of ongoing interest.

Gastric neuroendocrine neoplasm with late liver metastasis.

Unlabelled: Gastric neuroendocrine neoplasms (GNENs) are classified into three types according to their aetiology. We present a clinical case of a female patient of 66 years and a well-differentiated (grade 2), type 3 GNEN with late liver metastasis (LM). The patient underwent surgical excision of a gastric lesion at 50 years of age, without any type of follow-up.

Quality in Colonoscopy: Beyond the Adenoma Detection Rate Fever.

Background: Colonoscopy quality is a hot topic in gastroenterological communities, with several actual guidelines focusing on this aspect. Although the adenoma detection rate (ADR) is the single most important indicator, several other metrics are described and need reporting. Electronic medical reports are essential for the audit of quality indicators; nevertheless, they have proved not to be faultless.

Health-related quality of life and utilities in gastric premalignant conditions and malignant lesions: a multicentre study in a high prevalence country.

Background And Aims: A recent review of economic studies relating to gastric cancer revealed that authors use different tests to estimate utilities in patients with and without gastric cancer. Our aim was to determine the utilities of gastric premalignant conditions and adenocarcinoma with a single standardized health measure instrument.

Methods: Cross-sectional nationwide study of patients undergoing upper endoscopy (n=1,434) using the EQ-5D-5L quality of life (QoL) questionnaire.

Endoscopic mucosal resection of large colorectal polyps: prospective evaluation of recurrence and complications.

Background: Endoscopic mucosal resection (EMR) is a major therapeutic advance in the treatment of sessile and flat colorectal polyps. The aim of the study was to prospectively evaluate the success, complications and recurrence with EMR in colon.

Methods: From Jun/2008 to Jan/2012, patients referred for EMR of polyps > or =20 mm were included.

Diagnostic accuracy of lugol chromoendoscopy in the oesophagus in patients with head and neck cancer.

Background And Aim: patients with head and neck squamous cell malignancies have a higher risk of oesophageal squamous cell carcinomas. Lugol chromoendoscopy in oesophagus is a simple technique with a high diagnostic yield in premalignant lesions. The objective was to analyze its diagnostic accuracy in dysplasia and carcinoma of the oesophagus in high-risk patients.

Screening for gastric cancer and surveillance of premalignant lesions: a systematic review of cost-effectiveness studies.

Background: Cost-effectiveness studies are highly dependent on the models, settings, and variables used and should be based on systematic reviews. We systematically reviewed cost-effectiveness studies that address screening for gastric cancer and/or surveillance of precancerous conditions and lesions.

Materials And Methods: A systematic review of cost-effectiveness studies was performed by conducting a sensitive search in seven databases (PubMed, Scopus, Web of Science, Current Contents Connect, Centre for Reviews and Dissemination, Academic Search Complete, and CINAHL Plus), independently evaluated by two investigators.