老年肿瘤患者无论在生理上还是在社会中均属于弱势群体,肿瘤被发现时多处于晚期,基础疾病多,器官功能差,对抗癌治疗顺应性差,许多治疗无法进行,对姑息治疗的依赖性较大,因此老年肿瘤患者的镇痛治疗显得尤为重要。据估计,半数癌症患者在诊断时存在中重度疼痛;在癌痛发展过程中,? Elderly patients with cancer, both physically and socially, belong to the disadvantaged groups. Tumors are often found in advanced stages. Many underlying diseases, poor organ function, poor response to anticancer treatment, many of the treatments can not be carried out, and the dependence on palliative care Larger, so the analgesic treatment of elderly patients with cancer is particularly important. It is estimated that half of patients with cancer diagnosis of moderate to severe pain in the development of cancer pain,