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Oncologic feasibility of D1+ gastrectomy for patients with cT1N1, cT2N0-1, or cT3N0 gastric cancer.
European Journal of Surgical Oncology 2020 July 28
INTRODUCTION: D2 gastrectomy has shown a survival benefit in patients with highly advanced gastric cancer; however, it remains unclear whether D2 gastrectomy is required for patients with early-stage advanced gastric cancer or early gastric cancer with limited lymph node metastasis. This analysis aimed to clarify the oncologic feasibility of D1+ gastrectomy in patients with cT1N1, cT2N0-1, or cT3N0 gastric cancer.
METHODS: This retrospective cohort analysis included 466 patients with cT1N1, cT2N0-1, or cT3N0 gastric cancer who received curative gastrectomy with either D2 or D1+ dissection. Surgical outcomes were compared between the D2 group (n = 406) and the D1+ group (n = 60).
RESULTS: The number of patients with higher age and higher comorbidity index was greater in the D1+ group than in the D2 group. Postoperative complications were significantly lower in the D1+ group than in the D2 group (10.0% vs. 26.8%, p = 0.004). No statistically significant difference in 5-year overall survival (p = 0.146) and disease-specific survival (p = 0.807) between the groups was noted. The incidence of local recurrences (p = 0.500) and that of lymph node recurrences (p = 1.000) were also similar between the groups. Multivariable analysis for overall survival identified age, clinical node-positive status, high Charlson score (≥3), advanced pathological stage (≥III), and postoperative complication (grade ≥ II) as independent prognostic factors. The propensity score-matched analysis showed very similar survival outcomes between the groups.
CONCLUSION: D1+ gastrectomy may be oncologically feasible for patients with cT1N1, cT2N0-1, or cT3N0 stage gastric cancer.
METHODS: This retrospective cohort analysis included 466 patients with cT1N1, cT2N0-1, or cT3N0 gastric cancer who received curative gastrectomy with either D2 or D1+ dissection. Surgical outcomes were compared between the D2 group (n = 406) and the D1+ group (n = 60).
RESULTS: The number of patients with higher age and higher comorbidity index was greater in the D1+ group than in the D2 group. Postoperative complications were significantly lower in the D1+ group than in the D2 group (10.0% vs. 26.8%, p = 0.004). No statistically significant difference in 5-year overall survival (p = 0.146) and disease-specific survival (p = 0.807) between the groups was noted. The incidence of local recurrences (p = 0.500) and that of lymph node recurrences (p = 1.000) were also similar between the groups. Multivariable analysis for overall survival identified age, clinical node-positive status, high Charlson score (≥3), advanced pathological stage (≥III), and postoperative complication (grade ≥ II) as independent prognostic factors. The propensity score-matched analysis showed very similar survival outcomes between the groups.
CONCLUSION: D1+ gastrectomy may be oncologically feasible for patients with cT1N1, cT2N0-1, or cT3N0 stage gastric cancer.
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