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Challenges and shifting treatment strategies in the surgical treatment of locally advanced rectal cancer

Authors
 Ho Seung Kim  ;  Nam Kyu Kim 
Citation
 ANNALS OF GASTROENTEROLOGICAL SURGERY, Vol.4(4) : 379-385, 2020-07 
Journal Title
 ANNALS OF GASTROENTEROLOGICAL SURGERY 
Issue Date
2020-07
Keywords
early recurrence ; locally advanced rectal cancer ; neoadjuvant ; radiation ; total neoadjuvant treatment
Abstract
The current standard treatment for locally advanced rectal cancer (LARC) in Korea and Western countries is a multimodal approach incorporating preoperative long-course chemoradiotherapy (LCRT) followed by total mesorectal excision (TME) and adjuvant chemotherapy. This approach has significantly improved local control and reduced recurrence rates; however, the overall survival benefit has not been established. Although LCRT is a good option, there remain challenging unresolved problems for colorectal surgeons. We focused on four challenging issues in this review article. The first is LARC with resectable liver metastases, for which there has been no consensus regarding optimal management and practice thus far. The second is cancer progression at the time of restaging after completion of preoperative LCRT. To date, there have been few reports on this issue. The third is early recurrence after TME following preoperative LCRT, the reason for which is thought to be the delayed systemic chemotherapy in the preoperative LCRT protocol. The fourth is cost-effectiveness. The preoperative LCRT protocol takes 5 weeks. After a 6-8-week waiting period, surgery is performed. Therefore, it is more time-consuming than short-course chemoradiotherapy. To overcome these issues, total neoadjuvant treatment (TNT) modalities, performed using various protocols, have been conducted globally based on cumulative experience. We also attempted to discuss previous TNT protocols in this article. One treatment strategy is not sufficient for patients with varying clinical characteristics. Therefore, we should revisit current treatment strategies based on recent clinical experience.
Files in This Item:
T202004307.pdf Download
DOI
10.1002/ags3.12349
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Surgery (외과학교실) > 1. Journal Papers
Yonsei Authors
Kim, Nam Kyu(김남규) ORCID logo https://orcid.org/0000-0003-0639-5632
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/180203
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