caa a22 4500 445797215 CHVBK 20180317145129.0 cr unu---uuuuu 170323e20110201xx s 000 0 eng 10.1007/s10620-010-1457-1 doi (NATIONALLICENCE)springer-10.1007/s10620-010-1457-1 The Timing of Bowel Preparation Is More Important than the Timing of Colonoscopy in Determining the Quality of Bowel Cleansing [Elektronische Daten] [Chang Eun, Dong Han, Yil Hyun, Joong Bae, Hye Park, Tae Kim, Yong Jeon, Joo Sohn] Aims: We aimed to compare the quality of bowel preparation and cecal intubation rates between morning and afternoon colonoscopies and to evaluate the difference in quality of bowel preparation according to the intervals between starting and ending intake of bowel preparation agent and the initiation of colonoscopy. Methods: In this prospective study, 300 outpatients were instructed to drink PEG solution starting either at 5:00 a.m. (morning group) or at 8:00 a.m. (afternoon group) on the same day. The time when PEG intake was started and completed, and when colonoscopy was begun were recorded. The quality of bowel preparation was assessed using the Ottawa bowel preparation scale. Results: There was no significant difference in the Ottawa scale between the morning and the afternoon groups (p=0.14). Patients with intervals of 7h or less between the initiation of PEG intake and the start of colonoscopy had a better quality of bowel preparation than those with intervals of more than 7h (p=0.03). In addition, patients with intervals of 4h or less between the end of PEG intake and the start of colonoscopy had a better quality of bowel preparation than those with intervals of more than 4h (p=0.02). Conclusions: The time of day at which colonoscopy is performed, whether during the morning or the afternoon, does not have a significant impact on the quality of bowel preparation. The quality of bowel preparation is significantly better in patients with a shorter time between bowel preparation and the start of colonoscopy. Springer Science+Business Media, LLC, 2010 Bowel preparation nationallicence Colonoscopy nationallicence Quality nationallicence Timing nationallicence Eun Chang Department of Internal Medicine, Hanyang University Guri Hospital, 249-1, Gyomoon-Dong, 471-701, Guri-Si, Gyeonggi-Do, Korea aut Han Dong Department of Internal Medicine, Hanyang University Guri Hospital, 249-1, Gyomoon-Dong, 471-701, Guri-Si, Gyeonggi-Do, Korea aut Hyun Yil Department of Internal Medicine, Hanyang University Guri Hospital, 249-1, Gyomoon-Dong, 471-701, Guri-Si, Gyeonggi-Do, Korea aut Bae Joong Department of Internal Medicine, Hanyang University Guri Hospital, 249-1, Gyomoon-Dong, 471-701, Guri-Si, Gyeonggi-Do, Korea aut Park Hye Department of Internal Medicine, Hanyang University Guri Hospital, 249-1, Gyomoon-Dong, 471-701, Guri-Si, Gyeonggi-Do, Korea aut Kim Tae Department of Internal Medicine, Hanyang University Guri Hospital, 249-1, Gyomoon-Dong, 471-701, Guri-Si, Gyeonggi-Do, Korea aut Jeon Yong Department of Internal Medicine, Hanyang University Guri Hospital, 249-1, Gyomoon-Dong, 471-701, Guri-Si, Gyeonggi-Do, Korea aut Sohn Joo Department of Internal Medicine, Hanyang University Guri Hospital, 249-1, Gyomoon-Dong, 471-701, Guri-Si, Gyeonggi-Do, Korea aut Digestive Diseases and Sciences Springer US; http://www.springer-ny.com 56/2(2011-02-01), 539-544 0163-2116 56:2<539 2011 56 10620 https://doi.org/10.1007/s10620-010-1457-1 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10620-010-1457-1 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Eun Chang Department of Internal Medicine, Hanyang University Guri Hospital, 249-1, Gyomoon-Dong, 471-701, Guri-Si, Gyeonggi-Do, Korea aut NATIONALLICENCE 700 1- Han Dong Department of Internal Medicine, Hanyang University Guri Hospital, 249-1, Gyomoon-Dong, 471-701, Guri-Si, Gyeonggi-Do, Korea aut NATIONALLICENCE 700 1- Hyun Yil Department of Internal Medicine, Hanyang University Guri Hospital, 249-1, Gyomoon-Dong, 471-701, Guri-Si, Gyeonggi-Do, Korea aut NATIONALLICENCE 700 1- Bae Joong Department of Internal Medicine, Hanyang University Guri Hospital, 249-1, Gyomoon-Dong, 471-701, Guri-Si, Gyeonggi-Do, Korea aut NATIONALLICENCE 700 1- Park Hye Department of Internal Medicine, Hanyang University Guri Hospital, 249-1, Gyomoon-Dong, 471-701, Guri-Si, Gyeonggi-Do, Korea aut NATIONALLICENCE 700 1- Kim Tae Department of Internal Medicine, Hanyang University Guri Hospital, 249-1, Gyomoon-Dong, 471-701, Guri-Si, Gyeonggi-Do, Korea aut NATIONALLICENCE 700 1- Jeon Yong Department of Internal Medicine, Hanyang University Guri Hospital, 249-1, Gyomoon-Dong, 471-701, Guri-Si, Gyeonggi-Do, Korea aut NATIONALLICENCE 700 1- Sohn Joo Department of Internal Medicine, Hanyang University Guri Hospital, 249-1, Gyomoon-Dong, 471-701, Guri-Si, Gyeonggi-Do, Korea aut NATIONALLICENCE 773 0- Digestive Diseases and Sciences Springer US; http://www.springer-ny.com 56/2(2011-02-01), 539-544 0163-2116 56:2<539 2011 56 10620 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer