Abstract
Background
Inadequate bowel preparation is the most common cause of failed colonoscopy, and repeat failure occurs in more than 20 % of follow-up attempts. Limited data suggest that next-day follow-up may reduce the risk for repeat inadequate preparation.
Objective
Evaluate differences in prep quality with next-day follow-up after initial inadequate preparation.
Design
Retrospective study.
Setting
Academic center.
Patients
Outpatient screening and surveillance colonoscopies between 7/2002 and 6/2007.
Intervention
Comparison of next-day versus any other day (“non-next-day”) repeat colonoscopy outcomes.
Main Outcome Measurements
Aronchick scale, polyp and adenoma detection rates.
Results
Of 20,798 initial colonoscopies, 857 (4.1 %) had inadequate preparation. 460 (54 %) were lost to follow-up. One hundred and fourteen (13 %) had next-day and 283 (33 %) had non-next-day colonoscopy with mean follow-up of 8.8 months. On follow-up examination, 29.8 % of next-day and 23.3 % of non-next-day colonoscopies had inadequate bowel preparation (p = 0.48). The adenoma detection rate for the next-day group improved from 3.5 to 38.6 % on follow-up, compared to 20.5 and 36.8 % in the non-next-day group. There was no significant difference between groups in detection of total adenoma (p = 0.73) or advanced adenomas (p = 0.20) on follow-up examinations.
Limitations
Retrospective design, differences in baseline colonoscopy characteristics.
Conclusion
The results confirm the need for repeat examination after a colonoscopy with inadequate bowel prep, as there was substantial increase in adenoma detection on follow-up. There were no differences in outcomes between next-day versus non-next-day colonoscopy. These data support repeating after inadequate colonoscopy within 1 year as convenient for patient and physician.
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Abbreviations
- CRC:
-
Colorectal cancer
- OR:
-
Odds ratio
- US-MSFT:
-
US multi-society task force
- PDR:
-
Polyp detection rate
- PPP:
-
Polyps per procedure
- ADR:
-
Adenoma detection rate
- APP:
-
Adenomas per procedure
- PEG:
-
Polyethylene glycol
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Murphy, C.J., Jewel Samadder, N., Cox, K. et al. Outcomes of Next-Day Versus Non-next-Day Colonoscopy After an Initial Inadequate Bowel Preparation. Dig Dis Sci 61, 46–52 (2016). https://doi.org/10.1007/s10620-015-3833-3
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DOI: https://doi.org/10.1007/s10620-015-3833-3