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Comparison of long-term recurrence-free survival between primary surgery and endoscopic resection followed by secondary surgery in T1 colorectal cancer

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Abstract
Background and Aims: We aimed to investigate whether endoscopic resection of T1 colorectal cancer (CRC) before surgery (secondary surgery) unfavorably affects long-term recurrence-free survival (RFS) compared with surgery without prior endoscopic resection (primary surgery).

Methods: We reviewed the medical records of patients who underwent radical surgery for T1 CRC with high-risk histologic features at a tertiary referral hospital in Korea between 2011 and 2016. The primary outcome was RFS. We performed 2 types of propensity score (PS) analyses to control for confounders.

Results: Of 852 patients, 388 underwent primary surgery and 464 secondary surgery. During the median followup period of 57.0 months (range, 41.0-63.0), cancer recurred in 18 patients (2.1%). The 5-year RFS rates did not differ between the primary and secondary surgery groups (97.0 vs 98.5%, P = .194). Further analyses of RFS rates according to nodal stages and number of high-risk histologic features showed no difference between groups. Moreover, RFS rates were not different between the groups after PS matching. In multivariable Cox proportional regression analysis, baseline serum carcinoembryonic antigen level was an independent risk factor for cancer recurrence (hazard ratio, 1.464; 95% confidence interval, 1.242-1.725; P <.001) but prior endoscopic resection of T1 CRC was not (P Z.201). Both PS analyses consistently showed no increase in cancer recurrence risk in the secondary surgery group.

Conclusions: Our data showed no additional cancer recurrence risk by endoscopic resection before surgery of T1 CRC with high-risk histologic features.
Author(s)
오은혜김나영황성욱박상형양동훈예병덕명승재양석균유창식김진천변정식
Issued Date
2021
Type
Article
Keyword
CEA (Oncology)Colorectal cancerComparative analysisDiseasesEndoscopyHealth aspectsMedical recordsRelapseRisk factorsSurgery
DOI
10.1016/j.gie.2021.02.021
URI
https://oak.ulsan.ac.kr/handle/2021.oak/7067
https://ulsan-primo.hosted.exlibrisgroup.com/primo-explore/fulldisplay?docid=TN_cdi_proquest_miscellaneous_2492660071&amp;context=PC&amp;vid=ULSAN&amp;lang=ko_KR&amp;search_scope=default_scope&amp;adaptor=primo_central_multiple_fe&amp;tab=default_tab&amp;query=any,contains,Comparison%20of%20long-term%20recurrence-free%20survival%20between%20primary%20surgery%20and%20endoscopic%20resection%20followed%20by%20secondary%20surgery%20in%20T1%20colorectal%20cancer&amp;offset=0&amp;pcAvailability=true
Publisher
GASTROINTESTINAL ENDOSCOPY
Location
미국
Language
영어
ISSN
0016-5107
Citation Volume
94
Citation Number
2
Citation Start Page
394
Citation End Page
404
Appears in Collections:
Medicine > Medicine
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