Journal
ANNALS OF SURGICAL ONCOLOGY
Volume 21, Issue 4, Pages 1323-1329Publisher
SPRINGER
DOI: 10.1245/s10434-013-3449-9
Keywords
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Funding
- South-Eastern Norway Regional Health Authority [39151, 10920]
- Oslo University Hospital [10920, 38034]
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Background. Surgical resection is the only curative modality for colorectal liver metastases (CLM), and the pattern of recurrences after resection affects survival. In a prospective study of liver transplantation (Lt) for nonresectable CLM we have shown a 5-year overall survival rate of 60 %, but 19 of 21 experienced recurrence. This study reports the pattern of recurrences after Lt for CLM and the effect on survival. Methods. Characterization of metastatic lesions in a prospective study for Lt for nonresectable CLM was performed (n = 21). The study included reexamination of chest computed tomographic scans taken before Lt. Results. At the time of first recurrence, 16 were a single site, and three were multiple sites. Thirteen of the single sites were pulmonary recurrences. The pulmonary recurrences appeared early and were slow growing, and several were accessible to surgical treatment. When chest computed tomographic scans were reexamined, seven patients had pulmonary nodules at the time of Lt without an effect on survival. There was no first single-site hepatic recurrence. Six of the seven patients who developed metastases to the transplanted liver died from metastatic disease. Conclusions. The pulmonary recurrences after Lt for CLM were of an indolent character, even those that were present at the time of Lt. This contrasts with the finding of metastases to the transplanted liver, which was prognostically adverse. The lack of single hepatic first-site recurrences and hepatic metastases only as part of disseminated disease is different from the pattern of recurrence after liver resection. This suggests two distinct mechanisms for hepatic recurrences after resection for CLM.
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