下肢深静脉血栓形成(deep vein thrombosis,DVT)引起的肺动脉栓塞(pulmonary embolism,PE),原因多是肢体静脉血栓形成后脱落的栓子造成。近年来腔静脉滤器作为预防DVT并发PE的重要手段已被临床普遍应用,同时滤器类型选择倾向可回收型,但可回收滤器取出后有再发PE可能。笔者从20 Pulmonary embolism (PE) caused by deep vein thrombosis (DVT) is often caused by emboli that fall off after venous thrombosis of the limbs. In recent years, vena cava filter as an important means of prevention of DVT complicated with PE has been widely used clinically, while the type of filter options tend to be recyclable, but the recoverable filter removed PE may be issued again. The author from 20