근치적 절제 후 1년 이내 조기 재발하는 대장암
Colorectal Cancer Presenting as an Early Recurrence Within 1 Year after a Curative Resection
정상훈, 박인자, 최평화, 유창식, 김희철, 김진천, 김아영,
소속 상세정보
정상훈 ( Jung Sang-Hun )
영남대학교 의과대학 외과학교실
박인자 ( Park In-Ja )
울산대학교 의과대학 외과학교실
최평화 ( Choi Pyong-Wha )
울산대학교 의과대학 외과학교실
유창식 ( Yu Chang-Sik )
울산대학교 의과대학 외과학교실
김희철 ( Kim Hee-Cheol )
울산대학교 의과대학 외과학교실
김진천 ( Kim Jin-Cheon )
울산대학교 의과대학 외과학교실
김아영 ( Kim Ah-Young )
울산대학교 의과대학 방사선과학교실
KMID : 0356720080240040265
Abstract
Purpose: An individualized surveillance protocol based on stratified prognostic factors is needed for the early detection of recurrent disease. The aim of this study was to determine both the clinicopathological characteristics for early-recurring colorectal cancer and the impact on survival.
Methods: From January 1996 to September 2000, 1,504 patients with curatively resected colorectal cancer were recruited. The primary goal of this study was to evaluate the time interval until first loco-regional or distant recurrence, and the secondary goal was the last survival status. Early recurrence was defined as recurrence within the first 12 months postoperatively. Clinicopathologic data and preoperative CT records were reviewed. The follow-up period was over 48 months.
Results: The 5-year recurrence rate was 25.4%, and 39.5% of these were detected within the first 12 months postoperatively. In the multivariate analysis, the independent prognostic factors for early recurrence were cell differentiation (PD/MUC/SRC), lymphovascular invasion, and absence of adjuvant chemotherapy in stage III and curatively resected colorectal cancer in stage IV. Inaccurate interpretation by a low-quality CT scan resulted in a stage III cancer being understaged preoperatively. The 5-year overall survival rate according to the recurrent time interval was significantly different (early recurrence: 7.4% vs. late recurrence: 23.6%, P＜0.05). The resection rate was similar in both groups (early recurrence: 22.7% vs. late recurrence: 27.6%, P=0.392).
Conclusions: Colorectal cancer that recurred within 12 months showed more aggressive biologic behaviors and poor survival. Understaging caused by incomplete preoperative evaluation for disease extension may cause treatment failure. J Korean Soc Coloproctol 2008;24: 265-272
키워드
대장암;조기재발;예후인자;생존율
Colorectalcancer;Earlyrecurrence;Prognosticfactor;Survivalrate
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