A5039374582- Colorectal Cancer Screening and Detection
- Gastric Cancer Management and Outcomes
- Colorectal Cancer Surgical Treatments
- Pediatric Hepatobiliary Diseases and Treatments
- Radiomics and Machine Learning in Medical Imaging
- Gallbladder and Bile Duct Disorders
- Biliary and Gastrointestinal Fistulas
- Metastasis and carcinoma case studies
- Clinical practice guidelines implementation
- Esophageal Cancer Research and Treatment
- Cholangiocarcinoma and Gallbladder Cancer Studies
- Colorectal Cancer Treatments and Studies
- Gastrointestinal Tumor Research and Treatment
- Diverticular Disease and Complications
- scientometrics and bibliometrics research
- Sharing Economy and Platforms
- Infrared Thermography in Medicine
- Breast Lesions and Carcinomas
- Vascular Anomalies and Treatments
- Vascular Procedures and Complications
- Digital Humanities and Scholarship
- Venous Thromboembolism Diagnosis and Management
- Central Venous Catheters and Hemodialysis
- Renal and Vascular Pathologies
- Genetic factors in colorectal cancer
Centre Hospitalier de l’Université de Montréal
2020-2024
Université de Montréal
1993-2023
Hôtel-Dieu de Montréal
1993-2020
Description: Hereditary hemorrhagic telangiectasia (HHT) is an autosomal dominant disease with estimated prevalence of 1 in 5000 that characterized by the presence vascular malformations (VMs). These result chronic bleeding, acute hemorrhage, and complications from shunting through VMs. The goal Second International HHT Guidelines process was to develop evidence-based consensus guidelines for management prevention HHT-related symptoms complications. Methods: were developed using AGREE II...
Background & AimsArtificial intelligence (AI)–based optical diagnosis systems (CADx) have been developed to allow pathology prediction of colorectal polyps during colonoscopies. However, CADx not yet validated for autonomous performance. Therefore, we conducted a trial comparing AI AI-assisted human (AI-H) diagnosis.MethodsWe performed randomized noninferiority patients undergoing elective colonoscopies at 1 academic institution. Patients were into (1) AI-based diminutive without input or...
BACKGROUND : Cold snare polypectomy (CSP) is increasingly used for and recommended as the first-line modality small (< 10 mm) polyps. This study aimed to evaluate incomplete resection rates (IRRs) when using CSP colorectal polyps of 4-20 mm. METHODS Adults (45-80 years) undergoing screening, surveillance, or diagnostic colonoscopy by one nine endoscopists were included. The primary outcome was IRR mm, defined presence polyp tissue in marginal biopsies after serrated adenomas. Secondary...
To report a technique of peripheral biliary decompression by means anastomosis bile duct in segment II the liver to lesser curvature stomach.Seven patients with unresectable neoplasm were treated. After transhepatic catheterization duct, left lobe and stomach perforated under fluoroscopic laparoscopic guidance. Anastomosis between tree was maintained gastrostomy tube placed across tract. 2 weeks, removed patency tract preserved metallic stent.Three died, at 3, 6, 9 months, respectively,...
Aims Artificial intelligence-based optical diagnosis systems (CADx) have been developed to allow pathology prediction of colorectal polyps during colonoscopies. However, CADx not yet validated for autonomous performance. Therefore, we conducted a trial comparing Autonomous AI (AI-A) assisted human (AI-H) diagnosis.
To evaluate the long-term results of peripheral biliary diversion by means anastomoses left lobe liver to stomach.Transhepatic perforation into lesser curvature stomach was performed in 35 patients with a presumed diagnosis malignant obstructive jaundice. Jaundice found be caused stricture 32 and benign three. Perforation under fluoroscopic, endoscopic, laparoscopic guidance 33 without laparoscopy other two. The hepaticogastric anastomosis secured gastrostomy tube; patency tract maintained...
Abstract Background and study aims Incomplete resection of 4- to 20-mm colorectal polyps occur frequently (> 10 %), putting patients at risk for post-colonoscopy cancer. We hypothesized that routine use wide-field cold snare with submucosal injection (CSP-SI) might reduce incomplete rates (IRRs). Patients methods aged 45 80 years undergoing elective colonoscopies were enrolled in a prospective clinical study. All non-pedunculated resected using CSP-SI. Post-polypectomy margin biopsies...
Post-polypectomy surveillance intervals are currently determined based on pathology results.To evaluate a polyp-based resect and discard model that assigns solely polyp number size.Patients undergoing elective colonoscopies at the Montreal University Medical Center were enrolled prospectively. The strategy was used to assign next interval using size number. Surveillance also assigned optical diagnosis for small polyps (< 10 mm). primary outcome agreement between model, diagnosis,...
Laparoscopic cholecystectomy is becoming a popular alternative to open cholecystectomy. However, the technical aspects of this new procedure increase risk injuring bile ducts. The purpose study was determine feasibility and value performing cholangiography during laparoscopic cholecystectomy.We retrospectively reviewed clinical operative cholangiographic findings first 107 patients undergoing at Hôtel-Dieu de Montréal between August 1990 1991.Operative attempted in 98% patients; success rate...
Abstract Background Endoscopic mucosal resection (EMR) is the mainstay of therapy for non-pedunculated colorectal polyps 20 mm or larger. Post EMR recurrence rates are about 15% if no margin ablation technique used. Aims Study aim was to evaluate hybrid Argon Plasma Coagulation (h-APC) routinely used after ablate margins, base and vessels. Methods A prospective multi-center study including adult patients (18-89 years) undergoing larger conducted. h-APC all post margins surface visible...
Abstract Background Optical diagnosis can be used as an alternative to pathology for the evaluation of colorectal polyps. There exist multiple classification systems that assist in performing optical diagnosis. Aims The aim this study was compare three different classifications (NICE, SANO and WASP) when using Optivista iScan image enhanced endoscopy (IEE). Methods included subjects between 45–80 years undergoing elective screening, surveillance, or diagnostic colonoscopy with IEE. Three...
Current clinical practice assigns post-polypectomy surveillance intervals based on the number, size and histological aspects of polyps. Our goal was to test a novel polyp-based resect discard model that for small polyps only number A post hoc analysis performed patients enrolled in prospective colonoscopy trial. We created interval allocation experience what most likely pathology-based would be certain scenarios. The primary outcome agreement strategy compared histopathology USMSTF...
Abstract Background Image enhanced endoscopy (IEE) allows for real-time optical diagnosis of colorectal polyps in order to replace histopathology. A novel classification system (SIMPLE classification) has recently been developed when using the Pentax Optivista IEE platform. Aims The aim this study was evaluate SIMPLE polyp a prospective clinical study. Methods Patients undergoing screening, diagnostic or surveillance colonoscopies were enrolled All 1-10mm found underwent with either iScan...
Abstract Background The effectiveness of colonoscopy screening to prevent colorectal cancer (CRC) is directly linked its procedural quality. An independent observer (Hawthorne effect) can improve quality metrics, including adenoma detection rate (ADR). However, the results studies are limited or controversial. Purpose We aimed evaluate metrics in a group patients undergoing diagnostic colonoscopies under stringent conditions. Method In single-center, case–control study, consecutive routine...
Abstract Background Identification and photo-documentation of the ileocecal valve (ICV) appendiceal orifice (AO) confirm completeness colonoscopy examinations. We hypothesized that an artificial intelligence (AI)-empowered solution could help us automatically differentiate anatomical landmarks such as AO ICV from polyps normal colon mucosa. Purpose aimed to develop test a deep convolutional neural network (DCNN) model can identify AO, these mucosa colorectal polyps. Method prospectively...
Serrated lesions (SLs) including traditional serrated adenomas (TSA), large hyperplastic polyps (HP) and sessile (SSLs) are associated with high incomplete resection rates. Margin ablation combined EMR (EMR-T) has become routine to reduce local recurrence while cold snare polypectomy (CSP) is becoming recognized as equally effective for SLs. Our aim was evaluate rates (LRR) the use of margin in preventing a retrospective cohort study.Patients undergoing ≥15 mm colorectal SLs from 2010-2022...