Abstract
BackgroundWhether gastrectomy with D2 lymphadenectomy improves survival of patients with advanced gastric cancer (AGC) remains controversial. Few studies have described the pathological features of AGC with metastatic suprapancreatic lymph nodes (LN), which are the target of D2 lymphadenectomy. This study therefore aims to clarify the prognosis and clinical pathological features including the number and location of metastatic LN in AGC with metastatic suprapancreatic LN.Methods406 patients with AGC, who underwent gastrectomy with D2 lymphadenectomy from 1982 to 2007 at Oita University, were reviewed retrospectively with regard to presence or absence of metastatic suprapancreatic LN. The pathological factors associated with AGC with metastatic suprapancreatic LN were examined by univariate and multivariate analysis.ResultsOf 362 patients with AGC, 78 had suprapancreatic LN metastasis (21.5 %), differing significantly in terms of presence of vascular invasion and having a larger number of metastatic perigastric LN in comparison with only metastatic perigastric LN on univariate analysis. According to multivariate analysis, they were associated with presence of vascular invasion and a large number of total metastatic LN (more than two; N2≤). The overall 5-year survival rate of the AGC with perigastric LN metastasis (station 1–7) group was 37.9 % and of the AGC with suprapancreatic LN metastasis group was 12.8 %. There were significant differences in each group (P < 0.05).ConclusionsPatients with AGC with metastatic suprapancreatic LN had a large number of total metastatic LN and poor prognosis, suggesting that it may be a systemic disease.
Highlights
Whether gastrectomy with D2 lymphadenectomy improves survival of patients with advanced gastric cancer (AGC) remains controversial
Our study showed that the recurrence rates in the AGC with suprapancreatic lymph nodes (LN) metastasis group were 20.0 % for hematogenous metastasis, 5.0 % for metastasis to locoregional area, 25.0 % for paraaortic LN metastasis, and 50.0 % for peritoneal dissemination, whereas the recurrence rates in the AGC with only perigastric LN metastasis group were 24.3, 13.5, 13.5, and 48.7 %, respectively
In Asian countries, gastrectomy with D2 lymphadenectomy has been performed as a standard procedure for AGC, whereas in Western countries, gastrectomy with D1 lymphadenectomy has been performed
Summary
Whether gastrectomy with D2 lymphadenectomy improves survival of patients with advanced gastric cancer (AGC) remains controversial. Few studies have described the pathological features of AGC with metastatic suprapancreatic lymph nodes (LN), which are the target of D2 lymphadenectomy. 406 patients with AGC, who underwent gastrectomy with D2 lymphadenectomy from 1982 to 2007 at Oita University, were reviewed retrospectively with regard to presence or absence of metastatic suprapancreatic LN. The pathological factors associated with AGC with metastatic suprapancreatic LN were examined by univariate and multivariate analysis. Of 362 patients with AGC, 78 had suprapancreatic LN metastasis (21.5 %), differing significantly in terms of presence of vascular invasion and having a larger number of metastatic perigastric LN in comparison with only metastatic perigastric LN on univariate analysis. They were associated with presence of vascular invasion and a large number of total metastatic LN (more than two; N2B). Patients with AGC with metastatic suprapancreatic LN had a large number of total metastatic LN
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