There was no related complications and death.Conclusion P-VCF is a safe and effective instrument in prevention of pulmonary thromboembolism in patients with DVT.

• 结论永久性腔静脉滤器预防肺血栓栓塞症安全有效，为预防肺血栓栓塞症，对下肢深静脉血栓形成患者植入永久性腔静脉滤器是必要的。