Introduction
The changes experienced by the therapeutic method of HCC remain
unprecedented over the past decade. LLR has become the main treatment
for HCC since it first reported in 1991 with the development of
endoscopic technology. Although the therapic technology of HCC has been
improved continuously, its mortality is still high. Metastasis is the
major lethal factor for postoperative patients of HCC. For metastasis,
extrahepatic metastasis takes up 14.0-25.5%[1].The lung is the
second common metastasis organ after LLR and OLR[2], meanwhile, the
PM is accounting for 30-50% of extrahepatic metastasis cases [3,
4].And it is difficult to detect PM early, other than regular
imageological examination. Therefore, pulmonary metastasis impacts the
postoperative survival rate of HCC[2]. Through clinical comparison,
there were more patients with pulmonary metastasis after LLR than OLR.
The purpose of this study was to explore the effect factors of LLR and
OLR for postoperative pulmonary metastasis.