A randomized phase II study for reconstruction after distal gastrctomy (Billroth I versus Roux-en-Y method)

INTERVENTION: Billroth‐I method Roux‐en‐Y method CONDITION: Curative distal gastrectomy for gastric cancers PRIMARY OUTCOME: body weight loss rate at one year afer surgery SECONDARY OUTCOME: incidence of delayed gastric empty, reflux esphagitis and surgical complication INCLUSION CRITERIA: 1) Primary treatment for histologically proven adenocarcinoma of the stomach. 2)Indication for distal gastrectomy due to tumor localization 3) Reconstruction feasible for both Billroth I and Roux‐en‐Y 4) Aged 20 to 90 years old 5) PS (ECOG) of 0 or 16) Curable operation ( Curability B or more according to Japanese Classification for Gastric carcinomas) 7) Written informed consent