Endoscopy 2018; 50(04): S179
DOI: 10.1055/s-0038-1637584
ESGE Days 2018 ePosters
Georg Thieme Verlag KG Stuttgart · New York

ADENOMA RECURRENCE RATE AFTER LEFT- VERSUS RIGHT-SIDED COLECTOMY FOR COLON CANCER; IS THERE REALLY A DIFFERENCE BETWEEN THE TWO GROUPS?

HS Moon
1   Chungnam National University Hospital, Department of Gastroenterology, Daejeon, Korea, Republic of
,
GY Yun
1   Chungnam National University Hospital, Department of Gastroenterology, Daejeon, Korea, Republic of
,
JS Kim
1   Chungnam National University Hospital, Department of Gastroenterology, Daejeon, Korea, Republic of
,
SH Kang
1   Chungnam National University Hospital, Department of Gastroenterology, Daejeon, Korea, Republic of
,
JK Sung
1   Chungnam National University Hospital, Department of Gastroenterology, Daejeon, Korea, Republic of
,
HY Jeong
1   Chungnam National University Hospital, Department of Gastroenterology, Daejeon, Korea, Republic of
› Author Affiliations
Further Information

Publication History

Publication Date:
27 March 2018 (online)

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Aims:

Patients with a history of colonic resection for cancer have an increased risk for the development of metachronous malignant lesions. However, data on detection rates of premalignant lesions during colonoscopy surveillance in this setting are scarce and the results were different. We have tried to confirm the results of previous studies, especially in the non-western societies.

Methods:

We retrospectively screened all consecutive patients who had undergone colonic surgery for colon cancer at Chungnam National University Hospital between September 2011 and April 2016. Polyp, adenoma, and advanced adenoma detection rates (PDR, ADR, AADR) in the second surveillance colonoscopy were the main outcome measurements between the left-sided colectomy (LCR) and right-sided colectomy (RCR) groups. Multivariate analysis was performed to adjust for other confounding factors.

Results:

A total of 348 patients were enrolled in the LCR and RCR groups (214 and 134 patients, respectively). The PDR, ADR, and AADR in the LCR and RCR groups were 51.1%, 36.2%, and 11.7%; and 35.2%, 31.5%, and 9.3%, respectively. There was no significant difference between the two groups. In the multivariate analysis, LCR group (odds ratio 1.047; 95% confidence interval, 0.469 – 2.334) was not associated with a higher adenoma recurrence rate than the RCR group after adjustment for age, sex, and bowel preparation in the second surveillance colonoscopy.

Conclusions:

Based on our results, there was no significant difference in adenoma recurrence rate after LCR or RCR. More large prospective studies should be performed according to the type of the colonic resection.