Abstract
The Hokkaido Liver Cancer Study Group focused on the changes in PIVKA-II levels observed in 61 HCC patients after several regimens of treatment in comparison with the AFP levels and the pathophysiological characteristics of HCC. The overall positivity rate for PIVKA-II was 47%, and there was no correlation between the PIVKA-II values and the AFP levels. Accordingly, the HCC detection rate was increased by about 20% by the measurement of both markers. In all, 13 patients underwent hepatic resection, and nonsurgical therapy was carried out in the other 48 subjects. Of the 6 surgically treated patients, 5 (83%) showed a fall in PIVKA-II levels to the normal range immediately after surgery, whereas 14/29 (48%) subjects receiving nonsurgical treatment showed a decrease in PIVKA-II values. Although inconsistency between these tumor markers was detected in four treated cases, we concluded that assay for both of these two parameters may expand their clinical utility for the diagnosis of HCC and monitoring of patients after treatment.
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