癌性胸腔积液临床上多见于肺癌及乳房癌患者，也可由其他部位肿瘤转移所致。其治疗常采用反复胸穿或胸腔插管引流术，尽可能抽尽胸水，继而胸腔内用药以控制胸水生长［１］但反复胸穿或胸腔插管病人痛苦较大，胸水难以抽尽，从而影响胸内化疗效果，且常有气胸、出血等并发症［ Cancerous pleural effusions are more common in patients with lung cancer and breast cancer, but may also be caused by metastases from other sites. The treatment often uses repeated thoracic puncture or thoracolumbar intubation to drain the pleural effusion as much as possible, followed by intrathoracic medication to control pleural effusion growth [1] but patients with repeated thoracic puncture or chest thoracic intubation experience greater pain and pleural effusion is difficult to drain. Affect the effect of intrathoracic chemotherapy, and often have pneumothorax, bleeding and other complications [