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胰腺癌肿的发病率有明显增长的趋势。Silverbery统计美国1970年胰腺癌的发病率已达9/10万,较1930年的增长3倍。胰腺癌的早期诊断不易,据一般估计,胰腺癌患者出现第一个症状至确立诊断的时间约为4～9个月。手术切除率在24%以下,一年生存率约8%,预后颇差。因此,研究胰腺癌的病因并对其进行有效的预防,实有重要的临床意义。现收集文献中报道的胰腺癌致病因素,综合介绍如下: 流行病学调查长期以来,肿瘤研究工作者运用流行病学和实验室研究的方法,分析了年龄、性别、种族、遗传、饮食、营养、职业、咖啡和烟草等因素,经广泛的研究多数认为胰腺癌是由多因素的反复作用所致。【年龄】胰腺癌好发于60岁以上的老年人,发
The incidence of pancreatic cancer has a significant increase. Silverbery statistics The incidence of pancreatic cancer in the United States in 1970 has reached 9/10 million, a threefold increase compared to 1930. The early diagnosis of pancreatic cancer is not easy. It is generally estimated that the time from the first symptom of pancreatic cancer patients to the establishment of diagnosis is about 4 to 9 months. The surgical resection rate is below 24%, and the one-year survival rate is about 8%. The prognosis is rather poor. Therefore, it is of important clinical significance to study the cause of pancreatic cancer and effectively prevent it. The pancreatic cancer risk factors reported in the literature are collected and summarized as follows: Epidemiological investigations For a long time, cancer researchers used epidemiology and laboratory research methods to analyze age, gender, race, genetics, diet, Factors such as nutrition, occupation, coffee, and tobacco have been widely studied and most of them believe that pancreatic cancer is caused by multiple factors. [age] Pancreatic cancer occurs in older people over 60 years of age.