下肢深静脉血栓（low extremity deep venous thrombosis，LDVT）形成是围手术期常见的并发症，防止围术期LDVT形成对病人来说至关重要，一旦发生LDVT危险较大。应重视围手术期LDVT的处理对策，重点在于早期预防、早期诊断、早期积极治疗。

Perioperative prevention and treatment of low extremity deep venous thrombosis (LDVT)        AI Yu-hang. Department of Intensive Care Unit, Xiangya Hospital, Central South University，Changsha 410008，China
Abstract    Low extremity deep venous thrombosis (LDVT) is one of the common complications during perioperative period. Perioperative prevention and treatment of LDVT are very important. The author summarized the treatment strategies of LDVT, including early prevention, early diagnosis and early aggressive therapy.