探讨胸胃对食管癌围术期呼吸功能的影响。方法　自 1997年 7月至 1998年 4月 ,连续选择食管癌病人 36例 ,其中行食管癌切除食管胃主动脉弓上吻合 18例 ,弓下吻合 18例。动态监测围术期肺功能及血气分析主要指标变化。结果　弓上吻合较弓下吻合对PaO2 的影响差异始终有显著性 (P <0 0 5) ,手术第 10d以后对VC %、FVC %、MVV %的影响差异显著 (P <0 0 5) ,对FEV1 0 %的影响差异始终无显著性 (P >0 .0 5) ;弓上吻合较弓下吻合引起肺部感染与心律失常的相对危险度为 2 5。结论　食管癌切除术后 ,行食管胃主动脉弓上吻合较弓下吻合对机体呼吸功能的影响更显著 To investigate the effect of thoracic stomach on perioperative respiratory function of esophageal cancer. Methods From July 1997 to April 1998, 36 consecutive patients with esophageal cancer were selected. Among them, 18 patients underwent esophagogastric aortic arch anastomosis and 18 underwound anastomosis. Dynamic monitoring of changes in major indicators of perioperative lung function and blood gas analysis. Results There was significant difference in PaO2 between bow anastomosis and bow anastomosis (P < 0.05), and there was significant difference in VC%, FVC % and MVV% after 10 days of operation (P <0 05). There was no significant difference in the effect of FEV10% (P > 0.05). The relative risk of pulmonary infection and arrhythmia caused by bow anastomosis was lower than that of arch anastomosis. Conclusion After resection of esophageal cancer, the esophageal and gastric aortic arch anastomosis has more significant effects on the respiratory function than the anastomosis of the bow.