Beneficio de la quimioterapia adyuvante en pacientes con cáncer de colon: cohorte retrospectiva de un hospital clínico universitario / Benefit of adjuvant 5-fluorouracil based chemotherapy for colon cancer: a retrospective cohort study
Rev. méd. Chile
;
144(2): 145-151, feb. 2016. ilus, graf
Article
in Spanish
| LILACS
| ID: lil-779480
ABSTRACT
Background:
Multiple clinical trials have demonstrated the benefits of adjuvant 5-fluorouracil-based chemotherapy for patients with resectable colon cancer (CC), especially in stage III.Aim:
To describe the clinical characteristics of a cohort of CC patients treated at a single university hospital in Chile since 2002, and to investigate if chemotherapy had an effect on survival rates. Material andMethods:
Review of a tumor registry of the hospital. Medical records of patients with CC treated between 2002 and 2012 were reviewed. Death certificates from the National Identification Service were used to determine mortality. Overall survival was described using the Kaplan-Meier method. A multivariate Cox proportional hazard regression model was also used.Results:
A total of 370 patients were treated during the study period (202 in stage II and 168 in stage III). Adjuvant chemotherapy was administered to 22 and 70% of patients in stage II and III respectively. The median follow-up period was 4.6 years. The 5-year survival rate for stage II patients was 79% and there was no benefit observed with adjuvant chemotherapy. For stage III patients, the 5-year survival rate was 81% for patients who received adjuvant chemotherapy, compared to 56% for those who did not receive chemotherapy (hazard ratio (HR) 0.29; 95% confidence interval (CI) 0.15-0.56). The benefit of chemotherapy was found to persist after adjustment for other prognostic variables (HR 0.47; 95% CI 0.23-0.94).Conclusions:
Patients with colon cancer in stage III who received adjuvant chemotherapy had a better overall survival.
Full text:
Available
Index:
LILACS (Americas)
Main subject:
Antineoplastic Combined Chemotherapy Protocols
/
Colonic Neoplasms
/
Fluorouracil
Type of study:
Etiology study
/
Observational study
/
Prognostic study
/
Risk factors
Limits:
Adult
/
Aged
/
Aged80
/
Female
/
Humans
/
Male
Language:
Spanish
Journal:
Rev. méd. Chile
Journal subject:
Medicine
Year:
2016
Type:
Article
Affiliation country:
Chile
Institution/Affiliation country:
Pontificia Universidad Católica de Chile/CL
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