Impact of tumor sidedness on survival and recurrence patterns in colon cancer patients
Annals of Surgical Treatment and Research
; : 296-304, 2019.
Article
em En
| WPRIM
| ID: wpr-762673
Biblioteca responsável:
WPRO
ABSTRACT
PURPOSE: Previous studies have reported conflicting results regarding the prognostic value of tumor sidedness in colon cancer. We investigated the oncologic impact of tumor location and examined whether recurrence patterns were related to tumor sidedness in colon cancer patients. METHODS: We identified stage I–III colon adenocarcinoma patients from a prospective colorectal cancer registry at Severance Hospital, Seoul, Korea, who underwent complete mesocolic excision between 2005 and 2012. Adjusted hazard ratios (HRs) and 95% confidence intervals (CI) for predictors of cancer-specific survival (CSS), recurrence-free survival (RFS), and cumulative recurrence at specific anatomic sites were examined using Cox proportional hazard regression analysis. RESULTS: Overall, 1,912 patients, 1,077 (56.3%) with left-sided colon cancer (LCC), and 835 (43.7%) with right-sided colon cancer (RCC), at a median follow-up of 59 months, were eligible and included in the study. In univariate analysis, similar 5-year CSS and RFS were observed for LCC and RCC in the total patient population, and when stratified by stage for stage I and II patients. For stage III patients, an adjusted Cox regression analysis indicated that RCC patients had a higher risk of cancer-specific mortality (HR, 1.75; 95% CI, 1.07–2.86; P = 0.024) and recurrence (HR, 1.78; 95% CI, 1.22–2.60; P = 0.003). Furthermore, RCC was an independent predictor of peritoneal recurrence (HR, 1.86; 95% CI, 1.05–3.29; P = 0.031) in stage III patients. CONCLUSION: RCC correlated with worse CSS and RFS than LCC. In stage III patients, RCC correlated with increased risk of peritoneal recurrence. The reasons for these differences remain to be investigated.
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Base de dados:
WPRIM
Assunto principal:
Recidiva
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Neoplasias Colorretais
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Adenocarcinoma
/
Estudos Prospectivos
/
Seguimentos
/
Mortalidade
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Resultado do Tratamento
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Colo
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Neoplasias do Colo
/
Seul
Tipo de estudo:
Observational_studies
/
Prognostic_studies
/
Risk_factors_studies
Limite:
Humans
País como assunto:
Asia
Idioma:
En
Ano de publicação:
2019
Tipo de documento:
Article