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- W3143092370 abstract "AIM: To investigate the lymph node metastasis patterns of gallbladder cancer(GBC) and evaluate the optimal categorization of nodal status as a critical prognostic factor.METHODS: From May 1995 to December 2010,a total of 78 consecutive patients with GBC underwent a radical resection at Liaocheng People’s Hospital.A radical resection was defined as removing both the primary tumor and the regional lymph nodes of the gallbladder.Demographic,operative and pathologic data were recorded.The lymph nodes retrieved were examined histologically for metastases routinely from each node.The positive lymph node count(PLNC) as well as the total lymph node count(TLNC) was recorded for each patient.Then the metastatic to examined lymph nodes ratio(LNR) was calculated.Disease-specific survival(DSS) and predictors of outcome were analyzed.RESULTS: With a median follow-up time of 26.50 mo(range,2-132 mo),median DSS was 29.00 ± 3.92 mo(5-year survival rate,20.51%).Nodal disease was found in 37 patients(47.44%).DSS of node-negative patients was significantly better than that of nodepositive patients(median DSS,40 mo vs 17 mo,χ2= 14.814,P < 0.001),while there was no significant difference between N1 patients and N2 patients(median DSS,18 mo vs 13 mo,χ2= 0.741,P = 0.389).Optimal TLNC was determined to be four.When node-negative patients were divided according to TLNC,there was no difference in DSS between TLNC < 4 subgroup and TLNC ≥ 4 subgroup(median DSS,37 mo vs 54 mo,χ2 = 0.715,P = 0.398).For node-positive patients,DSS of TLNC < 4 subgroup was worse than that of TLNC ≥ 4 subgroup(median DSS,13 mo vs 21 mo,χ2= 11.035,P < 0.001).Moreover,for node-positive patients,a new cut-off value of six nodes was identified for the number of TLNC that clearly stratified them into 2 separate survival groups(< 6 or ≥ 6,respectively;median DSS,15 mo vs 33 mo,χ2= 11.820,P < 0.001).DSS progressively worsened with increasing PLNC and LNR,but no definite cut-off value could be identified.Multivariate analysis revealed hist" @default.
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- W3143092370 date "2013-01-01" @default.
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- W3143092370 title "Radical lymph node dissection and assessment:Impact on gallbladder cancer prognosis" @default.
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