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背景知识 定义 静脉血栓栓塞是指发生于静脉系统的任何血栓栓塞事件,包括深静脉血栓形成和肺栓塞。深静脉血栓形成(DVT)是指经放射学证实的下肢静脉系统发生足以引起疼痛或肿胀症状的部分或完全性血栓阻塞。近端DVT是指累及膝盖以上静脉的DVT(腘静脉,股浅静脉,股总静脉以及髂静脉)。孤立腓静脉血栓血栓形成部位限腓深静脉而不累及膝盖以上的静脉。肺栓塞是指经放射学证实的肺动脉内发生足以引起气短、胸痛或二者兼有等症状的部分或完全性血栓阻塞。血栓后综合征是指下肢发生DVT后出现水肿、溃疡形成和皮下组织活力受损。复发是指在先前证实的血栓栓
Background Knowledge Definition Venous thromboembolism refers to any thromboembolic event that occurs in the venous system, including deep venous thrombosis and pulmonary embolism. Deep vein thrombosis (DVT) refers to a radiologically proven partial or complete thrombus occlusion of the venous system of the lower extremity that is sufficient to cause pain or swelling. The proximal DVT refers to the DVT (popliteal, superficial femoral, and iliac vein) involving the knee above the knee. Isolated peroneal venous thrombosis thrombosis site limited to the deep perforation of the veins without involving the knee above the vein. Pulmonary embolism refers to a radiologically confirmed pulmonary artery that develops partial or complete thrombus occlusion sufficient to cause shortness of breath, chest pain, or both. Post-thrombotic syndrome refers to the appearance of edema, ulceration and impaired subcutaneous tissue activity following DVT of the lower extremity. Recurrence is defined in the previously confirmed thrombus