Abstract
IntroductionTo evaluate whether the extent of gastrectomy or the reconstruction method brings benefit of type 2 diabetes mellitus (T2DM) remission after gastrectomy in patients with gastric cancer.MethodsPUBMED, EMBASE, the Cochrane Central Register of Controlled Trials (CENTRAL) in The Cochrane Library were searched to find eligible studies published from inception to July 31, 2020.ResultsA total of nine studies (1424 patients) were included. At the first year and the end of follow-up time after gastrectomy, the total gastrectomy group had better T2DM remission than the subtotal gastrectomy group, and the Roux-en-Y reconstruction (R-Y) group had better T2DM remission compared with the non-R-Y group. There was no difference between R-Y and non-R-Y in terms of subtotal gastrectomy (OR 1.08, 95% CI 0.63–1.84, P = 0.78). However, total gastrectomy with R-Y had better T2DM remission than subtotal gastrectomy with R-Y (OR 2.75, 95% CI 1.19–6.35, P = 0.02).ConclusionTotal gastrectomy with R-Y had better T2DM remission. The extent of gastrectomy rather than the reconstruction method might play an important role in T2DM remission after gastrectomy in patients with gastric cancer.
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