Vascular surgical procedures. A bypass graft employing a blood vessel from One more part of the human body or even a tube made of artificial materials is positioned in the area of your blocked or narrowed artery. This can be done to reroute the blood stream. 干性坏疽：常见为肢端组织缺血坏死，干枯变黑并向躯干发展，直到血液循环足以防止坏死的地方停止。干性坏疽的病变界线清楚。早期干性坏疽... https://lobop999phx8.wiki-jp.com/user