Annals of Coloproctology

Guideline

Colorectal cancer

Colon cancer: the 2023 Korean clinical practice guidelines for diagnosis and treatment: Hyo Seon Ryu, Hyun Jung Kim, Woong Bae Ji, Byung Chang Kim, Ji Hun Kim, Sung Kyung Moon, Sung Il Kang, Han Deok Kwak, Eun Sun Kim, Chang Hyun Kim, Tae Hyung Kim, Gyoung Tae Noh, Byung-Soo Park, Hyeung-Min Park, Jeong Mo Bae, Jung Hoon Bae, Ni Eun Seo, Chang Hoon Song, Mi Sun Ahn, Jae Seon Eo, Young Chul Yoon, Joon-Kee Yoon, Kyung Ha Lee, Kyung Hee Lee, Kil-Yong Lee, Myung Su Lee, Sung Hak Lee, Jong Min Lee, Ji Eun Lee, Han Hee Lee, Myong Hoon Ihn, Je-Ho Jang, Sun Kyung Jeon, Kum Ju Chae, Jin-Ho Choi, Dae Hee Pyo, Gi Won Ha, Kyung Su Han, Young Ki Hong, Chang Won Hong, Jung-Myun Kwak, Korean Colon Cancer Multidisciplinary Committee; Ann Coloproctol. 2024;40(2):89-113. Published online April 30, 2024; DOI: https://doi.org/10.3393/ac.2024.00059.0008

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Colorectal cancer is the third most common cancer in Korea and the third leading cause of death from cancer. Treatment outcomes for colon cancer are steadily improving due to national health screening programs with advances in diagnostic methods, surgical techniques, and therapeutic agents.. The Korea Colon Cancer Multidisciplinary (KCCM) Committee intends to provide professionals who treat colon cancer with the most up-to-date, evidence-based practice guidelines to improve outcomes and help them make decisions that reflect their patients’ values and preferences. These guidelines have been established by consensus reached by the KCCM Guideline Committee based on a systematic literature review and evidence synthesis and by considering the national health insurance system in real clinical practice settings. Each recommendation is presented with a recommendation strength and level of evidence based on the consensus of the committee.

Citations

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Original Article

Efficacy of Dose-Escalated Radiotherapy for Recurrent Colorectal Cancer: Sunmi Jo, Yunseon Choi, Sung-Kwang Park, Jin-Young Kim, Hyun Jung Kim, Yun-Han Lee, Won Yong Oh, Heunglae Cho, Ki Jung Ahn; Ann Coloproctol. 2016;32(2):66-72. Published online April 30, 2016; DOI: https://doi.org/10.3393/ac.2016.32.2.66

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Abstract PDF

Purpose

This study aimed to evaluate the effects of radiotherapy (RT) on progression-free survival (PFS) for patients with recurrent colorectal cancer.

Methods

We reviewed the records of 22 patients with recurrent colorectal cancer treated with RT between 2008 and 2014. The median radiation dose for recurrent disease was 57.6 Gy (range, 45–75.6 Gy). Patients were divided into 2 groups according to the type of RT: patients underwent RT without previous history of irradiation (n = 14) and those treated with secondary RT (reirradiation: n = 8) at the time of recurrence.

Results

The median follow-up period was 24.9 months (range, 4.5–66.6 months). Progression was observed in 14 patients (including 8 with loco-regional failure and 9 with distant metastases). Distant metastases were related to the RT dose (<70 Gy, P = 0.031). The 2-year loco-regional control (LRC), PFS, and overall survival (OS) rates were 74.6%, 45.1%, and 82.0%, respectively. The LRC rate was not different between the patients treated with RT for the first time and those treated with reirradiation (P = 0.101, 2-year LRC 79.5% vs. 41.7%). However, reirradiation was related to poor PFS (P = 0.022) and OS (P = 0.002). An escalated RT dose (≥70 Gy) was associated with a higher PFS (P = 0.014, 2-year PFS 63.5% vs. 20.8%).

Conclusion

Salvage RT for locally recurrent colorectal cancer can be offered when surgery is impossible. Dose-escalated RT shows a possible benefit in reducing the risk of progression.

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Zhenkui Zuo, Shuling Ji, Lulu He, Yage Zhang, Zining Peng, Jiarui Han
Cell Biology International.2020; 44(11): 2284. CrossRef
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Frontiers in Oncology.2019;[Epub] CrossRef
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Dose-Escalated Radiotherapy for the Treatment of Patients With Recurrent Colorectal Cancer
Hyung Jin Kim, Seong Taek Oh
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