This is because there is a possibility of bleeding during surgery. Therefore, a reserve of blood is required to be prepared for transfusion. Vascular surgery is performed in 3 steps. First, the area of ​​vascular damage is identified. And there is a temporary hemostasis with an aromatic clamp. Then, considering the nature of the damage to the vascular wall. the degree of arterial ischemia and other factors The final coagulation of the blood is performed.

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