Vascular intussusception

It is suitable for patients with sharp cuts or other vascular injuries that require vascular incision and intussusception. It is a method of suture microvascular end to end. The advantage is that there is no or little suture in the lumen of the blood vessel, which does not damage the endometrium of the blood vessel. The operation is simple and time-saving. The specific method is to sleeve one end of the blood vessel into the lumen of the other end according to the direction of blood flow, that is, the artery should be inserted into the proximal end of the heart; the vein is the opposite, and the distal end is inserted into the proximal end. The length of the blood vessel in the insertion section is equal to the outer diameter of the blood vessel, and 2 to 3 stitches of the outer edge of the blood vessel are sewn on the adventitia of the blood vessel on the insertion side to fix the anastomosis operation. In wartime, the major arterial injuries of the limbs account for about 1 to 3% of all wounded, and they often occur. After an arterial injury, major hemorrhages can be issued immediately and are life-threatening, especially larger arteries, such as the femoral, iliac, and brachial arteries. Even if the bleeding stops, necrosis or dysfunction can occur due to insufficient blood supply to the distal limb. During World War I and World War II, vascular injuries to the limbs were mostly treated by ligation, with an amputation rate of 49%. In the past forty years, repair methods have been applied to vascular injuries of the extremities to reduce the amputation rate to 0 to 13.5%. When the main blood vessels of the extremities are damaged, nearby tissues such as bones, joints, muscles and nerves are often injured at the same time. However, important vascular injuries should be treated first. Vascular injuries in the limbs are divided into arteries and veins. Most firearm injuries are caused by both injuries. Among them, arterial injury is often the main contradiction and should be repaired, but when there is extensive soft tissue injury, the vein must be repaired.