Medline: 9207156

American Journal of Surgery 173(6): 467-471, 1997.

A study of prognostic factors for hepatic resection for colorectal metastases.

Taylor M, Forster J, Langer B, et al.

Abstract:

Background:
Liver resection is accepted treatment for selected patients with colon cancer metastatic to the liver. There remains some controversy regarding the selection criteria, particularly which preoperative features are useful predictors of long survival postresection.

Methods:
One hundred and twenty-three patients who had liver resection for colorectal metastases on the Hepato Pancreatic Biliary Service at The Toronto Hospital between August 1977 and June 1993 were studied. Seventy-seven had solitary lesions, 15 had single lesions with satellite nodules, and 31 had multiple lesions. Synchronous liver metastases were found in 40 patients and 83 patients had metachronous lesions. Fifty-one patients had formal lobectomies and 21 had extended lobectomies.

Results:
Postoperative complications were seen in 28% of patients, but there were no operative or postoperative deaths. Overall actuarial 5-year survival was 34%. There was a significant difference in survival according to the number of metastases. Patients with single lesions had a 5-year survival of 47% compared with 16% for single lesions with satellite nodules, and 17% for multiple lesions. There were no significant differences in survival based on age, sex, synchronous versus metachronous lesions, status of lymph nodes at the time of original surgery, intraoperative blood replacement, or size of tumor.

Conclusions:
An aggressive approach to the surgical management of colorectal liver metastases is possible with low risk in centers specializing in liver surgery, and results in prolonged survival in one third of patients. The most reliable predictor of long-term survival is the number of metastases in the liver.


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