題目

圖為ABI 正常值0.9~1.3 <0.5表示嚴重缺血 \>1.3表示血管嚴重鈣化硬化 ＊可以順便複習一下ABI怎麼量，數字怎麼除 (D) Below-the-knee bypass must use vein graft; prosthetic grafts have a prohibitive thrombosis rate (Surgery Recall 8th edition, p.354) 應優先選用自體靜脈移植 \==================== Sabiston: 所有情況都應該 **優先考慮使用大隱靜脈** 膝下繞道：大隱靜脈 膝上繞道：可以考慮使用PTFE The **great saphenous veins** should be used preferentially in all bypasses, especially in those reconstructions using below-knee popliteal and small tibial arteries as the distal target vessels. PTFE grafts can be used for bypasses to above-knee popliteal arterial segments with satisfactory patency rates.