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Comparative Study
, 102 (4), 251-7

Does D2 Plus Para-Aortic Nodal Dissection Surgery Offer a Better Survival Outcome Compared to D2 Surgery Only for Gastric Cancer Consistently? A Definite Result Based on a Hospital Population of Nearly Two Decades

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Comparative Study

Does D2 Plus Para-Aortic Nodal Dissection Surgery Offer a Better Survival Outcome Compared to D2 Surgery Only for Gastric Cancer Consistently? A Definite Result Based on a Hospital Population of Nearly Two Decades

Y Zhang et al. Scand J Surg.

Abstract

Background and aims: Curative resection is the treatment of choice for gastric cancer. Although it has been concluded that D2 lymphadenectomy plus para-aortic nodal dissection does not improve survival rate in curable gastric cancer, it is unclear whether D2 plus para-aortic nodal dissection has a benefit in some groups of patients. We conducted a retrospective study in our hospital, in which we compared D2 with D2 plus para-aortic nodal dissection lymphadenectomy for gastric cancer in subgroups of each clinical characteristic in terms of long-term survival after surgery.

Material and methods: We selected 1792 patients who had undergone the treatment with curative intent between 1990 and 2007, 1344 in the D2 group and 448 in the D2 plus para-aortic nodal dissection group. Each procedure was verified by pathological analyses. The primary end points were 5-year overall survival.

Results and conclusions: Median follow-up periods were 50 months for patients assigned to D2 group and 54 months for patients assigned to D2 plus para-aortic nodal dissection group. Overall 5-year survival was not significantly higher in patients assigned to D2 plus para-aortic nodal dissection surgery compared to those assigned to D2 surgery (31.2% (95% confidence interval: 19.8%-42.6%) vs 26.6% (95% confidence interval: 20.3%-32.9%); log-rank p = 0.433). D2 plus para-aortic nodal dissection surgery should only be used for curable gastric cancer of T3-4 and N2 stage and should not be used for T1 disease and total gastrectomy.

Keywords: D2 surgery; Gastric cancer; para-aortic nodal dissection; survival.

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