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Dig Liver Dis. 2015 Sep;47(9):805-10. doi: 10.1016/j.dld.2015.05.005. Epub 2015 May 19.

Yield of second surveillance colonoscopy to predict adenomas with high-risk characteristics.

Author information

1
Gastroenterology and Hepatology Institute, Meir Medical Center, Kfar Saba, Israel; Sackler School of Medicine, Tel Aviv University, Tel Aviv, Israel. Electronic address: ido.laish@gmail.com.
2
Gastroenterology and Hepatology Institute, Meir Medical Center, Kfar Saba, Israel.
3
Gastroenterology and Hepatology Institute, Meir Medical Center, Kfar Saba, Israel; Sackler School of Medicine, Tel Aviv University, Tel Aviv, Israel.

Abstract

BACKGROUND AND AIMS:

The yield of surveillance colonoscopies for patients with a history of polyps is well established for first surveillance, but limited for second surveillance. The aim of this study was to evaluate the proportion of high-risk adenomas at second surveillance colonoscopy based on findings of previous colonoscopies.

METHODS:

This retrospective cohort study was conducted in a tertiary hospital and patients who had undergone three colonoscopies were included. Based on the findings at index colonoscopy, patients were categorized into three groups: high-risk adenoma (n=252), low-risk adenoma (n=158) or no-adenoma (n=318). Findings of subsequent high-risk adenoma, low-risk adenoma and no adenoma at surveillance colonoscopies were documented in each group.

RESULTS:

Among patients with high-risk adenoma at index and first surveillance colonoscopies, significantly higher rates of high-risk findings were found at second surveillance, compared with patients who had low-risk or no-adenoma at index colonoscopy and high-risk adenoma at first surveillance colonoscopy (58%, 33% and 10%, respectively, p<0.001).

CONCLUSIONS:

Both index colonoscopy and first surveillance high-risk adenoma have an impact on incidence high-risk findings at second surveillance colonoscopy and these subjects need close surveillance.

KEYWORDS:

Colon cancer; Colonoscopy intervals; High risk adenoma; Surveillance colonoscopy

PMID:
26048253
DOI:
10.1016/j.dld.2015.05.005
[Indexed for MEDLINE]

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