有关食管癌患者手术前后ＨＡ水平的观察报道不多。为此 ,我们进行了探讨 ,现将结果报告如下。对象和方法一、对象 :（一）正常人 :３１人。均为我院保健科体检合格的健康人 ,无心、肝、肺、肾等重要脏器疾患 ,肝、肾功能试验正常。（二）病人组 :３３人。均为我院经临床明确诊 There are few reports on the level of HA before and after surgery in patients with esophageal cancer. For this purpose, we discussed and report the results as follows. Objects and Methods I. Object: (1) Normal person: 31 people. All of them were healthy people who passed the medical examination in our hospital. They had no heart, liver, lung, kidney and other important organ diseases. Liver and kidney function tests were normal. (b) Patient group: 33 people. All of them were clinically diagnosed in our hospital