Abstract
BACKGROUND: Colorectal cancer is the second commonest malignancy in the UK. Metastases to the liver occur in greater than 50% of patients and remain the biggest determinant of outcome in these patients. Liver resection is a safe procedure that achieves good long-term survival, but surgery has traditionally been limited to select groups of patients. The improved outcome suggests that more patients could benefit from resection if more was known of what criteria are predictive of a good outcome. PATIENTS AND METHODS: A retrospective analysis was performed on all patients undergoing surgical resection of the liver for colorectal metastases between March 1989 and March 2001 in the Birmingham Liver Unit. RESULTS: During this period, 212 liver resections for colorectal cancer metastases were performed in 82 females and 130 males. The median follow-up was 16 months with an overall actuarial survival of 86% at 1 year, 54% at 3 years, and 28% at 5 years. The peri-operative mortality was 2.8%. The number and timing (metachronous or synchronous) of metastatic lesions, the gender of the patient, pathological staging of the primary lesion or surgical resection margins had no significant influence on survival. Patients with lesions less than 5 cm in size had a significantly prolonged survival compared with patients with lesions greater than 5 cm in size (P < 0.004). CONCLUSIONS: Liver resection is the only curative treatment for patients with colorectal metastases. The long-term survival reported in patients with resected colorectal metastases confined to the liver is comparable to primary surgery for solid gastrointestinal tumours. Every attempt must be made to increase the availability of liver resection to patients with hepatic metastases from colorectal cancer.
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More From: Annals of The Royal College of Surgeons of England
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