Faculty Collaboration Database

A randomized trial comparing three methods of bowel preparation for flexible sigmoidoscopy. Am J Gastroenterol 1998 Jul;93(7):1126-30

Date

07/22/1998

Pubmed ID

9672343

DOI

10.1111/j.1572-0241.1998.00342.x

Scopus ID

2-s2.0-0032454092 (requires institutional sign-in at Scopus site)   23 Citations

Abstract

OBJECTIVE: The aim of this study was to assess the optimum method of bowel preparation for flexible sigmoidoscopy.

METHODS: A total of 164 adults undergoing flexible sigmoidoscopy at an ambulatory clinic were randomized to receive one of three preparations: a single hyperphosphate enema 1 h before the procedure; a hyperphosphate enema given 1 and 2 h before the procedure; or a hyperphosphate enema administered 1 and 2 h before the procedure, preceded by a 296 ml bottle of magnesium citrate taken p.o. the night before. Patients completed surveys on preparation and procedure comfort and satisfaction. The performing endoscopist assessed preparation quality, procedure duration, and depth of sigmoidoscope insertion.

RESULTS: All three preparations were equally well tolerated with slightly more diarrhea reported among patients receiving magnesium citrate (p = 0.007). The addition of magnesium citrate resulted in more procedures rated by the endoscopist as excellent or good (RR 1.5, 95% CI: 1.3-1.9), deeper sigmoidoscope insertion (56 vs 51 cm, p = 0.0036), fewer procedures requiring repeat preparation (RR: 0.21, 95% CI: 0.04-0.98) and more procedures rated by patients as discomfort free (RR: 2.2, 95% CI: 1.39-3.60). Excellent and good preparations were associated with shorter procedure duration (19 vs 14 min, p = 0.008) and greater depth of insertion (56 vs 50 cm, p = 0.003). Fewer diverticuli were noted with a single enema than the two enema preparation (p = 0.006) with the remaining outcomes equal between these two groups.

CONCLUSION: The addition of bottle of magnesium citrate to a 2-hyperphosphate enema preparation is well tolerated and improves bowel preparation for flexible sigmoidoscopy.

Author List

Osgard E, Jackson JL, Strong J

Author

Jeffrey L. Jackson MD Professor in the Medicine department at Medical College of Wisconsin

MESH terms used to index this publication - Major topics in bold

Abdominal Pain
Administration, Oral
Adult
Aged
Ambulatory Care
Cathartics
Citric Acid
Colon
Diarrhea
Diverticulum, Colon
Enema
Female
Humans
Male
Middle Aged
Organometallic Compounds
Patient Satisfaction
Phosphates
Sigmoidoscopes
Sigmoidoscopy
Time Factors