Hendrikus J. M. Pullens

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BACKGROUND Computed tomography-colonography is a diagnostic modality that can be used when the colon is not completely intubated during colonoscopy. It may have the additional advantage that information on extracolonic lesions can be obtained. OBJECTIVE The aim of this study was to investigate the yield of CT-colonography of relevant intra- and(More)
OBJECTIVE It is difficult to predict the presence of histological risk factors for lymph node metastasis (LNM) before endoscopic treatment of T1 colorectal cancer (CRC). Therefore, endoscopic therapy is propagated to obtain adequate histological staging. We examined whether secondary surgery following endoscopic resection of high-risk T1 CRC does not have a(More)
BACKGROUND AND STUDY AIMS We introduced a new platform for performing colonoscopy with robotic steering and automated lumen centralization (RS-ALC) and evaluated its technical feasibility. PARTICIPANTS AND METHODS Expert endoscopists (n = 8) and endoscopy-naive novices (n = 10) used conventional steering and RS-ALC to perform colonoscopy in a validated(More)
Colonoscopy is the diagnostic modality of choice for investigation of symptoms suspected to be related to the colon and for the detection of polyps and colorectal cancer (CRC). Colonoscopy with removal of detected polyps has been shown to reduce the incidence and mortality of subsequent CRC. In many countries, population screening programs for CRC have been(More)
OBJECTIVES To determine whether endoscopic clip-assisted nasoenteral feeding tube placement is more effective than standard feeding tube placement with transnasal endoscopy. METHODS Between August 2009 and February 2011, 143 patients referred for endoscopic nasoenteral feeding tube placement were randomized between clip-assisted and standard nasoenteral(More)
BACKGROUND Most post-colonoscopy colorectal cancers (PC-CRCs) are thought to develop from missed or incompletely resected adenomas. AIMS We aimed to assess the incidence rate of PC-CRC overall and per colorectal segment, as a proxy for PC-CRC due to incomplete adenoma resection, and to identify adenoma characteristics associated with these PC-CRCs. (More)
BACKGROUND & AIMS It is not clear whether the incidence of missed or early colorectal cancers (CRCs) has decreased over time. We compared the rates of missed or early CRC after polypectomy between 1996 and 2006, and aimed to identify risk factors for these. METHODS We performed a population-based, case-control study linking data from the Dutch Pathology(More)
BACKGROUND Patients with an increased risk of having colorectal cancer (CRC) should have priority on the colonoscopy list. OBJECTIVE To investigate whether presenting symptoms of patients referred for colonoscopy could help in identifying patients with an increased risk of CRC. PATIENTS AND METHODS Between February 2007 and November 2010, random(More)