Abstract
Colonoscopy (CF) is fundamental to the one of follow-up programs in patients aftercolorectal cancer operated. The aim of this study is to determine the better bowel preparationfor CF in these patients. A prospective randomized trial to compare the smaller (Group A:1, 000ml) versus standard volumes of PEG preparation (Group B:2, 000ml) was conducted-Thecolonoscopists were unaware of the preparation volumes until the examinations were over.. Atotal of 59 patients were enrolled in the study. There were 32 patients in Group A and 27 inGroup B. Gnly 16 of 32 patients (50%) had an excellent and good preparation in Group A (vs. 78% Group B, p<0.05) . However, in the oral side colon cancer operated patients, 9 of 10patients (90%) had an excellent and good preparation in Grou.p A. In the anal side colon cancerand rectal cancer operated patients, only 7 of 22 patients (32%) had an excellent and goodpreparation in Group A. These results suggested that it is possible to reduce the PEG volume (1, 000ml) in the oral side colon cancer operated patients. Some anal side colon and rectal canceroperated patients had poor preparation with the standard preparation method(2, 000ml).
