J.Jpn. Surg. Soc.. 87(9): 1160-1163, 1986

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Report on the annual meeting

PROBLEMS OF SURGICAL TREATMENT FOR HEPATOCELLULAR CARCINOMA WITH TUMOR EMBOLUS IN RORTAL VEIN
－FACTORS RELATED TO RECURRENCE ACCORDING TO QUANTIFICATION THEORY－

In attempt to find factors related to recurrence after hepatectomy for hepatocellular carcinoma (HCC) and to predict the possibility of the recurrence, ten items with subdivided categories were selected as the relevant factors. In patients after hepatectomy, including 13 with recurrence within 6 months (early group) and 10 with recurrence after 1 year (late group) of post-operation, each category was scored according to the “quantification method of the second type by Hayashi”.
Presence of tumor embolus, age over 50 years, partial resection in operative method and tumor size larger than 50mm in diamater were related to recurrence in the early group. In addition to these categories, HB antigenemia was also a poor prognostic indicator in the late group. Of these categories, macroscopically observed tumor embolus in portal vein showed the largest negative score in the two groups. A total score of the categories in each patient was predictive for recurrence in 86.3% of the early group and in 95.7% of the late group. Thus, at the time of hepatectomy, the possibility of recurrence can be predicted quantitatively. For the improvement of operative results, however, more effective managements for tumor embolus in portal vein remain to be developed.

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