Gut Liver.  2014 Nov;8(6):625-631. 10.5009/gnl13228.

Importance of the Time Interval between Bowel Preparation and Colonoscopy in Determining the Quality of Bowel Preparation for Full-Dose Polyethylene Glycol Preparation

• Kim TK
• Kim HW
• Kim SJ
• Ha JK
• Jang HH
• Hong YM
• Park SB
• Choi CW
• Kang DH

• KMID: 2070079
• DOI: http://doi.org/10.5009/gnl13228

Abstract

BACKGROUND/AIMS
The quality of bowel preparation (QBP) is the important factor in performing a successful colonoscopy. Several factors influencing QBP have been reported; however, some factors, such as the optimal preparation-to-colonoscopy time interval, remain controversial. This study aimed to determine the factors influencing QBP and the optimal time interval for full-dose polyethylene glycol (PEG) preparation.
METHODS
A total of 165 patients who underwent colonoscopy from June 2012 to August 2012 were prospectively evaluated. The QBP was assessed using the Ottawa Bowel Preparation Scale (Ottawa) score according to several factors influencing the QBP were analyzed.
RESULTS
Colonoscopies with a time interval of 5 to 6 hours had the best Ottawa score in all parts of the colon. Patients with time intervals of 6 hours or less had the better QBP than those with time intervals of more than 6 hours (p=0.046). In the multivariate analysis, the time interval (odds ratio, 1.897; 95% confidence interval, 1.006 to 3.577; p=0.048) was the only significant contributor to a satisfactory bowel preparation.
CONCLUSIONS
The optimal time was 5 to 6 hours for the full-dose PEG method, and the time interval was the only significant contributor to a satisfactory bowel preparation.

Keyword

Quality of bowel preparation; Colonoscopy; Time interval

MeSH Terms

Adolescent
Adult
Aged
Aged, 80 and over
Cathartics/*administration & dosage
Colonoscopy/*methods
Drug Administration Schedule
Female
Humans
Male
Middle Aged
Polyethylene Glycols/*administration & dosage
Prospective Studies
Time Factors
Young Adult
Cathartics
Polyethylene Glycols