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国内外初步实践证明，应用现有药物、遵循三阶梯治疗原则，可解除90％以上患者的癌痛，大大改善他们的生活质量。1癌痛机理与量度疼痛为一种令人不快的主观感受，是由外周疼痛感受器、传入神经和大脑疼痛中枢共同参与完成的生理防御机制。癌痛属于由躯体、心理诸多有害刺激参与
Initial practice at home and abroad has proven that applying existing drugs and following the principle of three-step treatment can relieve cancer pain in more than 90% of patients and greatly improve their quality of life. 1 Mechanism of pain and measurement of pain Pain is an unpleasant subjective sensation, and is a physiological defense mechanism that consists of peripheral pain receptors, afferent nerves, and brain pain centers. Cancer pain belongs to many harmful stimuli of body and mind