The relation between oncologic outcomes and metastatic lymph node location following laparoscopic resection of stage III colon cancer.

Kwak, Han Deok; Ju, Jae Kyun; Lee, Soo Young; Kim, Chang Hyun; Kim, Young Jin; Kim, Hyeong Rok
International journal of colorectal disease
2019Jan ; 128 ( 1 ) :.
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Kwak, Han Deok - Department of Surgery, Chonnam National University Hospital, 42 Jaebong-ro, Dong-gu, Gwangju, 61469, Republic of Korea.
Ju, Jae Kyun - Department of Surgery, Chonnam National University Hospital, 42 Jaebong-ro, Dong-gu, Gwangju, 61469, Republic of Korea.
Lee, Soo Young - Department of Surgery, Chonnam National University Hwasun Hospital, 322 Seoyang-ro, Hwasun-eup, Hwasun-gun, Jeonnam, 58128, Republic of Korea.
Kim, Chang Hyun - Department of Surgery, Chonnam National University Hwasun Hospital, 322 Seoyang-ro, Hwasun-eup, Hwasun-gun, Jeonnam, 58128, Republic of Korea.
Kim, Young Jin - Department of Surgery, Chonnam National University Hwasun Hospital, 322 Seoyang-ro, Hwasun-eup, Hwasun-gun, Jeonnam, 58128, Republic of Korea.
Kim, Hyeong Rok - Department of Surgery, Chonnam National University Hwasun Hospital, 322 Seoyang-ro, Hwasun-eup, Hwasun-gun, Jeonnam, 58128, Republic of Korea. drkhr@jnu.ac.kr.
ABSTRACT
PURPOSE: Colon cancers are staged by assessing more than 12 lymph nodes, but there is still a controversy over the number of lymph nodes. Only a few studies of metastatic lymph node position in colon cancer have been published with its significance not completely understood. This study aimed to compare survival rates according to metastatic lymph node position following radical lymph node dissection for stage III colon cancers.

METHODS: This retrospective study evaluated data prospectively collected at a tertiary teaching hospital from 349 patients who underwent laparoscopic colectomy with radical node dissection between December 2009 and December 2014. Lymph nodes were numbered and classified into lymph node metastasis (LNM) groups LNM1, LNM2, and LNM3 and their short- and long-term outcomes were compared.

RESULTS: The LNM1, LNM2, and LNM3 groups included 229, 94, and 26 patients, respectively. Patient characteristics differed by locations (p?
keyword
Laparoscopy; Lymph node location; Radical lymphadenectomy; Stage III colon cancer
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The 5-year disease-free survival rate did not differ among the three groups; however, the LNM3 group had the poorest overall and cancer-specific survival rates.Metastatic lymph node location affects oncologic outcomes in stage III colon cancer.Postoperative complications including superficial SSI, abdominal and anastomotic bleeding, anastomotic leakage, postoperative ileus, voiding difficulty, and pulmonary dysfunction were identified but did not differ among groups.
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DOI
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