80 results match your criteria: "Montreal University Hospital Center (CHUM)[Affiliation]"
Background: Efforts to improve colonoscopy have recently focused on improving adenoma detection through individual interventions. We evaluated an optimized computer-assisted technique (CADopt) versus standard colonoscopy.
Methods: A prospective randomized controlled trial was conducted enrolling adults (45-80 years) undergoing elective colonoscopy.
Endoscopy
January 2025
Division of Gastroenterology, Montreal University Hospital Center (CHUM) and Montreal University Hospital Research Center (CRCHUM), Montreal, Canada.
Endosc Int Open
November 2024
Division of Gastroenterology, St Michael's Hospital, University of Toronto, Toronto, ON, Canada.
Endoscopy
September 2024
Department of Medicine, Division of Gastroenterology, Montreal University Hospital Center (CHUM), Montreal, Canada.
Gastroenterology
December 2024
Division of Gastroenterology, Montreal University Hospital Center (CHUM), Montreal University Hospital Research Center (CRCHUM), Montreal, Quebec, Canada.
Clin Gastroenterol Hepatol
August 2024
IRCCS Humanitas Research Hospital, Rozzano, Milan, Italy; Department of Biomedical Sciences, Humanitas University, Pieve Emanuele, Milan, Italy.
Gastroenterology
December 2024
Division of Gastroenterology, Montreal University Hospital Center (CHUM), Montreal University Hospital Research Center (CRCHUM), Montreal, Quebec, Canada.
J Can Assoc Gastroenterol
April 2024
Montreal University Hospital Research Center (CRCHUM), Departement of Gastroenterology, Montreal, QC, Canada.
Background: The virtual scale endoscope (VSE) helps endoscopists measure colorectal polyp size more accurately compared to visual assessment (VA). However, previous studies were not adequately powered to evaluate the sizing of polyps at clinically relevant size thresholds and relative accuracy for size subgroups.
Methods: We created 64 artificial polyps of varied sizes and Paris class morphology, randomly assigned 1:1 to be measured (383 total measurement datapoints with VSE and VA by 6 endoscopists blinded to true size) in a colon model.
Scand J Gastroenterol
May 2024
Division of Gastroenterology, Montreal University Hospital Research Center, Montreal, Québec, Canada.
Cancers (Basel)
December 2023
Montreal Clinical Research Institute (IRCM), Montréal, QC H2W 1R7, Canada.
This comprehensive review delves into the multifaceted aspects of ERK signaling and the intricate mechanisms underlying distinct cellular fates. ERK1 and ERK2 (ERK) govern proliferation, transformation, epithelial-mesenchymal transition, differentiation, senescence, or cell death, contingent upon activation strength, duration, and context. The biochemical mechanisms underlying these outcomes are inadequately understood, shaped by signaling feedback and the spatial localization of ERK activation.
View Article and Find Full Text PDFAm J Gastroenterol
July 2024
Montreal University Hospital Research Center, Montreal, Quebec, Canada.
Introduction: This study aimed to compare the accuracy of polyp size measurements using a virtual scale endoscope (VSE) with an integrated laser-based adaptive scale function and visual assessment (VA) during colonoscopies.
Methods: We conducted a single-blinded, prospective randomized controlled trial. Eligible patients (aged 45-80 years) undergoing screening, surveillance, or diagnostic colonoscopies were randomly assigned (1:1) into 2 groups.
Gastrointest Endosc
December 2023
Department of Gastroenterology, VA Medical Center, White River Junction, Vermont, USA; Department of Gastroenterology, VA Medical Center, White River Junction, Vermont; Dartmouth Hitchcock Medical Center, New Hampshire, USA.
Gastrointest Endosc
December 2023
Division of Gastroenterology, Duke University Medical Center, Durham, North Carolina, USA.
Scand J Gastroenterol
December 2023
Division of Gastroenterology, Montreal University Hospital Research Center (CRCHUM), Montreal, Canada.
Introduction: Serrated lesions (SLs) including traditional serrated adenomas (TSA), large hyperplastic polyps (HP) and sessile serrated lesions (SSLs) are associated with high incomplete resection rates. Margin ablation combined with EMR (EMR-T) has become routine to reduce local recurrence while cold snare polypectomy (CSP) is becoming recognized as equally effective for large SLs. Our aim was to evaluate local recurrence rates (LRR) and the use of margin ablation in preventing recurrence in a retrospective cohort study.
View Article and Find Full Text PDFAm J Gastroenterol
March 2024
Montreal University Hospital Research Center, Montreal, Quebec, Canada.
Introduction: Polyp size determination plays an important role in endoscopic decision making and follow-up determination. However, there is a lack of knowledge of endoscopist accuracy for polyp sizing and efficacy of available tools for size measurement. Our aim was to compare the accuracy of visual assessment, snare, forceps, and virtual scale endoscope (VSE) in estimating polyp size among a diverse group of endoscopists.
View Article and Find Full Text PDFJ Cancer Educ
February 2024
Faculty of Nursing, University of Montreal, Montreal, QC, Canada.
Nurses' communication regarding the sexual health of women with gynecologic cancer is suboptimal and may be attributed to their lack of sexual health training and knowledge. Our study aims to document the learning experience, impacts, and feasibility of an online educational intervention activity between oncology nurses and a simulated participant on communication with patients regarding oncological sexual health. Using a qualitative approach, we conducted a feasibility study, which included 11 oncology nurses, and performed semi-structured individual interviews after our simulation exercise.
View Article and Find Full Text PDFGut
November 2023
Gastroenterology, Montreal University Hospital Center (CHUM), Montreal, Quebec, Canada
Endoscopy
December 2023
Division of Gastroenterology, Montreal University Hospital Center (CHUM), Montreal, Canada.
Incomplete resection of 4- to 20-mm colorectal polyps occur frequently (> 10 %), putting patients at risk for post-colonoscopy colorectal cancer. We hypothesized that routine use of wide-field cold snare resection with submucosal injection (CSP-SI) might reduce incomplete resection rates (IRRs). Patients aged 45 to 80 years undergoing elective colonoscopies were enrolled in a prospective clinical study.
View Article and Find Full Text PDFJ Vis Exp
April 2023
Department of Otorhinolaryngology, Haga Hospital; Department of Otorhinolaryngology, Leiden University Medical Centre; Department of Otorhinolaryngology, Antwerp University Hospital.
Surg Endosc
July 2023
Division of Gastroenterology, Department of Medicine, Montreal University Hospital Center (CHUM) and Montreal University Hospital Research Center (CRCHUM), Montreal, Canada.
Background And Aims: Serrated lesions (SL) have been associated with significant risks of developing colorectal cancer (CRC). Data on synchronous findings after SL detection during colonoscopy is limited. Study aim was to evaluate the rate of synchronous advanced neoplasia (S-AN) and synchronous CRC (S-CRC) in colonoscopies where SLs were detected.
View Article and Find Full Text PDFJ Clin Med
February 2023
School of Rehabilitation, Faculty of Medicine, University of Montreal, Montreal, QC H3N 1X7, Canada.
Proprioceptive cervicogenic dizziness (PCGD) is the most prevalent subcategory of cervicogenic dizziness. There is considerable confusion regarding this clinical syndrome's differential diagnosis, evaluation, and treatment strategy. Our objectives were to conduct a systematic search to map out characteristics of the literature and of potential subpopulations of PCGD, and to classify accordingly the knowledge contained in the literature regarding interventions, outcomes and diagnosis.
View Article and Find Full Text PDFEndosc Int Open
January 2023
Division of Gastroenterology, Montreal University Hospital Center (CHUM), Montreal, Quebec, Canada.
Accurate polyp size measurement is important for guideline conforming choice of polypectomy techniques and subsequent surveillance interval assignments. Some endoscopic tools (biopsy forceps [BF] or endoscopic rulers [ER]) exist to help with visual size estimation. A virtual scale endoscope (VSE) has been developed that allows superimposing a virtual measurement scale during live endoscopies.
View Article and Find Full Text PDFEndoscopy
August 2023
Division of Gastroenterology, Montreal University Hospital Center (CHUM) and Montreal University Hospital Research Center (CRCHUM), Montreal, Canada.
BACKGROUND : Serrated lesions are potential colorectal cancer precursors. This study evaluated the presence of total metachronous advanced neoplasia (T-MAN) at follow-up in patients with index serrated lesions compared with a matched cohort without serrated lesions. METHODS : Patients aged 45-74 years with serrated lesions were matched 2:1 by sex, age, synchronous polyps, and timing of index colonoscopy, to patients without serrated lesions.
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