Publications by authors named "Benedict Devereaux"

Article Synopsis
  • The 2013 Asia-Pacific consensus on managing hilar cholangiocarcinoma was updated due to new evidence regarding endoscopic treatment for malignant hilar biliary obstruction (MHBO).
  • A review of literature using a PICO framework led to the creation of consensus statements and key concepts, with expert approval through the modified Delphi method.
  • The final recommendations address diagnosis, biliary drainage strategies, recurrent obstruction management, cholecystitis post-stenting, and pre-stenting treatments, but emphasize that they should complement, not replace, multidisciplinary decisions for individual patients.
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Article Synopsis
  • The first single-use duodenoscope was approved for use in the US in December 2019, and doctors needed more information on how well it worked in different situations.
  • A study involved 61 doctors from 22 hospitals in 11 countries who performed a procedure called ERCP on adult patients, checking how many were successful and if there were any problems.
  • Out of 551 patients treated, most (96%) had successful procedures using the single-use duodenoscope, with doctors expressing high satisfaction with its performance, despite some patients experiencing complications.
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Background: Cholangiocarcinoma (CC) is a very aggressive cancer with a poor prognosis. As surgery is the only curative therapy, preoperative evaluation of the tumor extent is essential for surgical planning. Although high-quality image modalities such as computed tomography and magnetic resonance imaging have been used extensively in preoperative evaluation, the accuracy is low.

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Background And Aim: Our aim was to evaluate the efficacy and safety of a lumen-apposing metal stent with an electrocautery-enhanced delivery system (EDS-LAMS) for endoscopic ultrasound (EUS)-guided drainage of pancreatic fluid collections (PFCs) in regular clinical practice.

Methods: A retrospective and subsequent prospective analysis was undertaken of all patients who underwent EUS-guided drainage of their PFCs using the EDS-LAMS at 17 tertiary therapeutic endoscopy centers.

Results: Two hundred eight cases of EDS-LAMS deployment were attempted in 202 patients (mean age 52.

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Background: Indeterminate strictures pose a therapeutic dilemma. In recent years, cholangioscopy has evolved and the availability of cholangioscopy has increased. However, the position of cholangioscopy in the diagnostic algorithm to diagnose malignancy have not been well established.

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Goal: We aimed to extract the percent of signs and symptoms at the time of diagnosis from published studies and to pool these using meta-analytic techniques.

Background: Delayed or misdiagnosis of chronic pancreatitis may occur because the signs and symptoms are nonspecific and varied.

Study: We performed a systematic review of studies reporting the signs and symptoms of chronic pancreatitis at diagnosis.

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Background: Peroral cholangioscopy (POCS) of indeterminate biliary strictures aims to achieve a diagnosis through visual examination and/or by obtaining targeted biopsies under direct visualization. In this large, prospective, multinational, real-life experience of POCS-guided evaluation of indeterminate biliary strictures, we evaluated the performance of POCS in this difficult-to-manage patient population.

Methods: This prospective registry enrolled patients, with indeterminate biliary strictures across 20 centers in Asia, the Middle East, and Africa.

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Distal biliary strictures (DBS) are common and may be caused by both malignant and benign pathologies. While endoscopic procedures play a major role in their management, a comprehensive review of the subject is still lacking. Our consensus statements were formulated by a group of expert Asian pancreatico-biliary interventional endoscopists, following a proposal from the Digestive Endoscopy Society of Taiwan, the Thai Association for Gastrointestinal Endoscopy, and the Tokyo Conference of Asian Pancreato-biliary Interventional Endoscopy.

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Background: Peroral cholangioscopy (POCS) can be useful for difficult bile duct stone clearance. Large prospective multinational data on POCS-guided lithotripsy for clearing difficult bile duct stones in a single session of endoscopic retrograde cholangiopancreatography (ERCP) are missing.

Methods: Patients with difficult bile duct stones (defined as one or more of: largest stone diameter ≥ 15 mm, failed prior attempt at stone clearance, impacted, multiple, hepatic duct location, or located above a stricture) were enrolled at 17 centers in 10 countries.

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Concern has been raised regarding the use of simethicone, a de-foaming agent, during endoscopic procedures. Following reports of simethicone residue in endoscope channels despite high level disinfection, an endoscope manufacturer recommended that it not be used due to concerns of biofilm formation and a possible increased risk of microorganism transmission. However, a detailed mucosal assessment is essential in performing high-standard endoscopic procedures.

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Background: Pancreatitis with infected necrosis is a severe complication of acute pancreatitis and carries with it high rates of morbidity and mortality. The management of infected pancreatic necrosis alongside concomitant colorectal cancer has never been described in literature.

Case Summary: A 77 years old gentleman presented to the Emergency Department of our hospital complaining of ongoing abdominal pain for 8 h.

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Outbreaks of carbapenemase-producing Enterobacteriaceae clinical infections related to endoscopic transmission are well documented. The high morbidity and mortality associated with these infections emphasizes the need to reassess endoscopic reprocessing protocols. The Gastroenterological Society of Australia established a multi-society committee to formulate evidence-based consensus statements on the prevention and management of endoscopic transmission of carbapenemase-producing Enterobacteriaceae.

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Diabetes of the exocrine pancreas (DEP) is a form of diabetes that occurs due to pancreatic disease. It is far more common than has been previously considered, with a recent study showing 1.8% of adults with new-onset diabetes should have been classified as DEP.

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Background And Aim: The contribution of gut-derived factors to the mechanisms linking obesity and metabolic disease remains under-investigated. The aim of the current study was to examine the associations between glucagon and enteroendocrine signaling and type 2 diabetes (T2D) using a derived risk score approach. To compare the relative importance of the enteroendocrine system, associations between adipokine measures and T2D were also investigated.

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Hilar cholangiocarcinoma (HCCA) is one of the most common types of hepatobiliary cancers reported in the world including Asia-Pacific region. Early HCCA may be completely asymptomatic. When significant hilar obstruction develops, the patient presents with jaundice, pale stools, dark urine, pruritus, abdominal pain, and sometimes fever.

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Rationale And Objectives: To measure main pancreatic duct diameter (PDD) with magnetic resonance pancreatography (MRP) before and after secretin injection in patients with suspected sphincter of Oddi dysfunction (SOD) and to determine if the diameter change is predictive of sphincter of Oddi manometry (SOM) results.

Materials And Methods: We identified all patients during the study period referred for SOM for clinically suspected SOD; patients with an intact sphincter and without contraindication to MRP examination were considered for study entry. Consenting patients underwent MRP, including dynamic imaging of the pancreatic duct after intravenous administration of porcine secretin followed by SOM during endoscopic retrograde cholangiopancreatography.

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Background & Aims: It is uncertain whether computed tomography (CT) or endoscopic ultrasound (EUS) is superior for the detection, staging, and resectability of pancreatic cancer. We therefore performed a systematic literature review to determine which test is more accurate.

Methods: We identified relevant studies from MEDLINE (1986-2004) and evaluated study quality, which was measured on the basis of guidelines for assessing studies of diagnostic tests.

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Background: Accurate preoperative detection and staging of pancreatic cancer may identify patients with locoregional disease that is amenable to surgical resection.

Objective: To compare endoscopic ultrasonography and multidetector computed tomography (CT) for the detection, staging, and resectability of known or suspected locoregional pancreatic cancer.

Design: Prospective, observational, cohort study.

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Despite technical advances in staging non-small cell lung cancer (NSCLC), accurate staging remains a challenge. Endoscopic ultrasound is useful in staging NSCLC when lymphadenopathy is present on a computed tomography (CT), but its role in the absence of lymphadenopathy on CT has not been well defined. Therefore, we sought to determine the clinical impact of endoscopic ultrasound (EUS) in staging NSCLC in absence of mediastinal lymphadenopathy on CT.

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Objective: ERCP is frequently the technique of choice for the diagnosis and palliative treatment of pancreaticobiliary neoplasms. The sensitivity of tissue sampling techniques has been disappointing. Two small series have reported a high diagnostic yield from cytological examination of cellular debris from removed biliary stents.

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Background: Secretin, a 27 amino acid polypeptide released in response to duodenal luminal acidification, stimulates secretion of water and bicarbonate from pancreatic ductal cells. To date the only secretin available for clinical use has been a biologically derived compound extracted from porcine duodenums. Although used to facilitate pancreatic duct cannulation, secretin has not been approved for this indication.

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Objectives: Cannulation of the pancreatic duct at ERCP can represent a technical challenge, even to experienced pancreaticobiliary endoscopists. Secretin is a polypeptide hormone that increases the volume and bicarbonate content of pancreatic secretions. We report our single center experience in the use of a new synthetic porcine secretin (sPS) for the facilitation of cannulation of either the major or minor pancreatic orifice during ERCP.

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