International journal of surgery (London, England) · 2018
Long-term survival after partial hepatectomy for sub-stage patients with intermediate stage hepatocellular carcinoma.
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Wei Wen-Xin, Yang Zhi-Shi, Lu Li-Hua, Li Jun, Lei Zheng-Qing, Wang Kui, Xia Yong, Yan Zhen-Lin, Shen Feng
Аннотация
BACKGROUND: The current study aimed to examine the long-term survival after partial hepatectomy for patients with BCLC intermediate stage hepatocellular carcinoma (HCC) stratified by the Bolondi's sub-staging model.
MATERIALS AND METHODS: This cohort consisted of 360 patients with BCLC intermediate stage HCC who underwent partial hepatectomy between January 2008 and February 2010. Patients were stratified into 3 subgroups (B1-B3) based on the Bolondi's sub-staging model. The last follow-up was conducted at February 2014.
RESULTS: Of these patients, 166, 171 and 23 patients had B1, B2, and B3 sub-stage HCC, respectively. The postoperative 5-year Overall survival (OS) rate for patients with these three sub-stages was 49.5%, 33.7% and 12.9%, respectively (P < 0.001). Compared with the reported survival outcomes from previous studies which used transarterial chemoembolization (TACE) as first-line treatment, hepatectomy had a better median survival than TACE in B1 and B2 patients. On multivariable analysis, presence of esophageal and gastric varices, higher NDR score, presence of microvascular invasion, differentiation grade III-IV, and patterns of AFP decreases after surgery were the independent risk factors of OS in the sub-stages B1 and B2 patients. A nomogram which integrated all these independent risk factors was developed, with a C-index of 0.71 for OS prediction. The calibration curve showed an optimal agreement between prediction by the nomogram and actual observation.
CONCLUSIONS: The patients with intermediate stage HCC clarified as sub-stages B1 and B2 according to Bolondi's model had an optimal long-term survival following partial hepatectomy than TACE. Their postoperative prognosis could be accurately predicted by our proposed nomogram.
MATERIALS AND METHODS: This cohort consisted of 360 patients with BCLC intermediate stage HCC who underwent partial hepatectomy between January 2008 and February 2010. Patients were stratified into 3 subgroups (B1-B3) based on the Bolondi's sub-staging model. The last follow-up was conducted at February 2014.
RESULTS: Of these patients, 166, 171 and 23 patients had B1, B2, and B3 sub-stage HCC, respectively. The postoperative 5-year Overall survival (OS) rate for patients with these three sub-stages was 49.5%, 33.7% and 12.9%, respectively (P < 0.001). Compared with the reported survival outcomes from previous studies which used transarterial chemoembolization (TACE) as first-line treatment, hepatectomy had a better median survival than TACE in B1 and B2 patients. On multivariable analysis, presence of esophageal and gastric varices, higher NDR score, presence of microvascular invasion, differentiation grade III-IV, and patterns of AFP decreases after surgery were the independent risk factors of OS in the sub-stages B1 and B2 patients. A nomogram which integrated all these independent risk factors was developed, with a C-index of 0.71 for OS prediction. The calibration curve showed an optimal agreement between prediction by the nomogram and actual observation.
CONCLUSIONS: The patients with intermediate stage HCC clarified as sub-stages B1 and B2 according to Bolondi's model had an optimal long-term survival following partial hepatectomy than TACE. Their postoperative prognosis could be accurately predicted by our proposed nomogram.