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一、深部静脉血栓1.成因Virchow曾提出著名的静脉血栓(deep enous thrombosis,DVT)形成的三大要素(血流淤滞、血管内皮损伤、凝血机能亢进),这一古典原则至今仍然成立。术后DVT的成因主要与血液的淤滞及流速的减慢有关,事实上随着麻醉的进行股静脉血流可减少50%,整个手术过程都保持着这种低血流量状态。既往有静脉血栓、高龄、肥胖、服用激素、心脏病、癌症、骨盆及骨关节手术等姓诱发DVT的危险因素。由
First, the deep venous thrombosis 1. Causes Virchow has made the famous three factors (blood stasis, vascular endothelial injury, coagulation hyperfunction) of the formation of the famous deep enous thrombosis (DVT), the classical principle is still established. The causes of postoperative DVT mainly associated with blood stasis and the slowing of the flow rate, in fact, with the anesthesia for femoral vein blood flow can be reduced by 50% throughout the surgical process to maintain this low blood flow state. Past risk factors for DVT such as venous thrombosis, advanced age, obesity, taking hormones, heart disease, cancer, pelvis and bone and joint surgery. by