Colorectal cancer screening with colonoscopy
Mené dans plusieurs pays européens (Pologne, Norvège, Pays-Bas, Suède) et incluant 94 959 participant âgés de 55 à 64 ans et à risque moyen de cancer du côlon, cet essai randomisé évalue l'efficacité, en termes de taux de participation, de performance technique (réduction de l'inconfort et de la douleur) et du taux de détection, de l'utilisation de la coloscopie pour le dépistage du cancer colorectal
Some experts have proposed that, if sigmoidoscopy is effective, complete colonoscopy might be more effective, not only for early detection of colorectal cancer, but for cancer prevention by removal of precancerous polyps. Nonrandomized case-control and cohort studies1 demonstrate reductions in colorectal cancer incidence (45%-77%) and mortality (31%-88%). These studies are subject to bias, and generally lack information about the quality of the examination, which could change the effectiveness. In addition, most of these studies have little information about the adverse events associated with colonoscopy, which could offset its benefits. Patient adherence when offered colonoscopy screening is difficult to derive from many prior studies.
JAMA Internal Medicine , commentaire, 2015