Publications by authors named "M P J A van der Voorn"

Background And Study Aims: Piecemeal EMR of large (≥20mm) non-pedunculated colorectal polyps (LNPCPs) is succeeded by a 6-month surveillance endoscopy to evaluate the post-EMR scar for recurrence. Data from expert centers suggest that routine tattoo placement and scar biopsies can be omitted, but data from community hospitals are lacking.

Patients And Methods: In a post-hoc analysis of the STAR-LNPCP study (NTR7477), containing prospective data on 6-month post-pEMR scar assessments in 30 Dutch community hospitals (October 2019 to May 2022), the agreement between optical assessment and histological confirmation by routine biopsies was evaluated.

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Introduction: Current evidence synthesis of prehabilitation studies in colorectal surgery is based on results of randomized controlled trials (RCT). Although RCTs are the gold standard for effectiveness research, observational studies probably better reflect real-life practice. The aims of the current study were to compare observational studies to RCTs regarding the association between prehabilitation and postoperative outcomes, and characteristics of included patients and interventions.

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Background:  Recognition of submucosal invasive colorectal cancer (T1 CRC) is difficult, with sensitivities of 35 %-60 % in Western countries. We evaluated the real-life effects of training in the OPTICAL model, a recently developed structured and validated prediction model, in Dutch community hospitals.

Methods:  In this prospective multicenter study (OPTICAL II), 383 endoscopists from 40 hospitals were invited to follow an e-learning program on the OPTICAL model, to increase sensitivity in detecting T1 CRC in nonpedunculated polyps.

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Objective: Endoscopic mucosal resection (EMR) is the preferred treatment for non-invasive large (≥20 mm) non-pedunculated colorectal polyps (LNPCPs) but is associated with an early recurrence rate of up to 30%. We evaluated whether standardised EMR training could reduce recurrence rates in Dutch community hospitals.

Design: In this multicentre cluster randomised trial, 59 endoscopists from 30 hospitals were randomly assigned to the intervention group (e-learning and 2-day training including hands-on session) or control group.

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Background: In order to develop a feasible prehabilitation program before surgery of NSCLC, this study aimed to gain insight into beliefs, facilitators, and barriers of (1) healthcare professionals to refer patients to a prehabilitation program, (2) patients to participate in and adhere to a prehabilitation program, and (3) informal caregivers to support their loved ones.

Methods: Semi-structured interviews were conducted with healthcare professionals, patients who underwent surgery for NSCLC, and their informal caregivers. The capability, opportunity, and motivation for behavior-model (COM-B) guided the development of the interview questions.

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