Optical diagnosis of T1 CRCs and treatment consequences in the Dutch CRC screening programme

Le résumé fourni par la source

With great interest, we have read the article by Backes et al ,1 on the pre-resection accuracy of the real-time optical diagnosis of T1 colorectal cancer (T1CRC) in large non-pedunculated colorectal polyps. In this multicentre, prospective study, the authors developed and validated the OPTICAL model, in which a sensitivity of 78.7% (95% CI: 64.3 to 89.3) for optical diagnosis of T1CRC was obtained. With the implementation of the Dutch bowel cancer screening programme (BCSP) in 2014, a shift has occurred towards the more frequent diagnoses of early AJCC (American Joint Committee on Cancer) stage I cancers.2 Estimating the risk of a T1CRC is crucial to determine the optimal treatment strategy, and to select cases for more elaborative and expensive endoscopic en bloc resection techniques such as endoscopic submucosal dissection, transanal minimally invasive surgery or endoscopic full-thickness resection. Current studies mainly report on the outcomes of advanced imaging by expert centres with dedicated endoscopists,3 4 whereas …

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