思密达（Smecta）作为一种消化道粘膜保护剂，对消化道粘膜损伤有良好的缓解作用。但用于预防和治疗肝动脉化疗栓塞术所致胃肠道副反应的报道甚少。本文采用随机对照的方法观察50例肝癌病人的效果，报道如下。1对象和方法1．1研究对象原发性肝癌病人50例，均为中晚期。其中男47 Smecta acts as a protective agent for digestive tract mucosa and has a good alleviating effect on digestive tract mucosal damage. However, there are few reports on the prevention and treatment of gastrointestinal side effects caused by transcatheter arterial chemoembolization. This article used a randomized controlled method to observe the effect of 50 patients with liver cancer, reported as follows. 1 Subjects and methods 1.1 Study subjects 50 patients with primary liver cancer were in the middle and late stages. One male 47