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English Abstract
Journal Article
[Prognostic factors following liver resection for hepatic metastases from colorectal cancer].
AIM: To determine the impact of prognostic factors on survival of patients with metastases from colorectal cancer that underwent liver resection.
METHODS: The records of 28 patients that underwent liver resection for metastases from colorectal cancer between April 1992 and September 2001 were retrospectively analyzed. Thirty-eight resections were performed (more than one resection in eight patients and two patients underwent re-resections). The primary tumor was resected in all the patients. A screening protocol for liver metastases including clinical examinations every three months, ultrassonography and CEA level until 5 years of follow-up and after every 6 months, was applied. The prognostic factors analyzed regarding the impact on survival were: Dukes C stage of primary tumor, size of metastasis >5 cm, a disease-free interval from primary tumor to metastasis < 1 year, CEA level > 100 ng/mL, resection margins < 1 cm and extrahepatic disease. The Kaplan-Meier curves, log rank and Cox regression were used for the statistical analysis.
RESULTS: Perioperative morbidity and mortality were 39.3% and 3.6%, respectively. The 5-year survival rate was 35%. The independent prognostic factors were: disease-free interval from primary tumor to metastasis < 1 year and extrahepatic disease.
CONCLUSIONS: The liver resection for metastases from colorectal cancer is a safe procedure with more than 30% 5-year survival. Disease-free interval from primary tumor to metastasis < 1 year and extrahepatic disease were independent prognostic factors.
METHODS: The records of 28 patients that underwent liver resection for metastases from colorectal cancer between April 1992 and September 2001 were retrospectively analyzed. Thirty-eight resections were performed (more than one resection in eight patients and two patients underwent re-resections). The primary tumor was resected in all the patients. A screening protocol for liver metastases including clinical examinations every three months, ultrassonography and CEA level until 5 years of follow-up and after every 6 months, was applied. The prognostic factors analyzed regarding the impact on survival were: Dukes C stage of primary tumor, size of metastasis >5 cm, a disease-free interval from primary tumor to metastasis < 1 year, CEA level > 100 ng/mL, resection margins < 1 cm and extrahepatic disease. The Kaplan-Meier curves, log rank and Cox regression were used for the statistical analysis.
RESULTS: Perioperative morbidity and mortality were 39.3% and 3.6%, respectively. The 5-year survival rate was 35%. The independent prognostic factors were: disease-free interval from primary tumor to metastasis < 1 year and extrahepatic disease.
CONCLUSIONS: The liver resection for metastases from colorectal cancer is a safe procedure with more than 30% 5-year survival. Disease-free interval from primary tumor to metastasis < 1 year and extrahepatic disease were independent prognostic factors.
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