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芝加哥大学近来观察表明,直结肠癌手术病人60岁以上者占2/3,70岁以上者占1/4。在美国直结肠癌具有流行性,1988年预期约有15万例患者。幸运的是年龄因素本身不是影响生存率的决定因素,年龄大预后不一定悲观,对70岁～、80岁～、90岁～的病人,手术后5年和10年生存率几乎一样。本文将回颐当前常用的直肠癌各种诊断和手术方法,以及预期所能取得的结果。
Recent observations from the University of Chicago show that patients with colorectal cancer undergoing surgery for colorectal cancer account for two-thirds of those over the age of 60 and those over the age of 70 account for one-fourth. The prevalence of colorectal cancer in the United States is estimated to be approximately 150,000 patients in 1988. Fortunately, the age factor itself is not a determinant of the survival rate. The older prognosis is not necessarily pessimistic. For patients aged 70, 80, and 90 years, the 5-year and 10-year survival rates after surgery are almost the same. This article will review various diagnostic and surgical methods currently used for rectal cancer, as well as the expected results.