Abstract
Aims The efficacy of surgical resection for multiple colorectal hepatic metastases (MCHM) has been controversial. We examined the survival of patients who received surgery for MCHM and examined the factors associated with survival. Methods A retrospective analysis was performed of 50 consecutive patients who received hepatic resections for MCHM, defined as four or more metastatic lesions of colorectal cancer. Results Overall survival after hepatic resection for MCHM was 48% at 3 years and 43% at 5 years (median survival, 22.3 months). Multivariate analyses revealed that a coefficient of variation (CV) in volume of hepatic metastases in each individual patient above 1.8 ( P = 0.01, HR = 4.08, 95% CI = 1.33–12.5) was the only poor prognostic factor after resection of MCHM. Conclusions A CV in volume of hepatic metastases in each individual patient above 1.8 predicts poor survival after hepatectomy of MCHM. Thus, the CV in volume of hepatic metastases in each individual patient might be useful in planning the therapeutic strategy for patients with MCHM.
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