Abstract
We investigated whether hepatic pedicle lymph node (HP-LN) involvement is a more significant prognostic factor and whether HP-LN dissection could be efficient in patients with positive HP-LN involvement. From 1988 to 1998, HP-LN dissection was prospectively performed in 160 patients undergoing hepatectomy for colorectal liver metastases. Survival of patients with HP-LN involvement limited to the hepatoduodenal ligament and retropancreatic portion (area 1) was compared with that of patients with HP-LN involvement spreading over the common hepatic artery and celiac axis (area 2). HP-LN involvement was detected in 17 patients. The survival rate was significantly lower in patients with HP-LN involvement. HP-LN involvement was the most significant prognostic factor. Survival was significantly higher in patients with HP-LN involvement limited to area 1 than in those with HP-LN involvement spreading over area 2. HP-LN involvement was the most significant prognostic indicator in patients with colorectal liver metastases. Positive LNs of area 1 should no longer be considered an absolute contraindication to liver resection, but in case of area 2 lymph node involvement, liver resection does not seem justified.
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