Valved Vein Segment Grafting

An autologous vein with a normal valve is inserted into the upper end of the superficial femoral vein to prevent blood from flowing back. Commonly used veins are mostly selected from the superficial femoral vein, the iliac vein or the arm vein. Treating diseases: heart valve disease Indication 1. Transvenous angiography confirmed to be moderate or severe valvular insufficiency. 2. The valve is severely damaged, extremely weak, and the free edge is excessively loose and prolapsed, and it cannot be repaired. Preoperative preparation A venous angiography was performed on the vein to be selected, and the function of the venous valve was confirmed to be normal. And pay attention to the presence or absence of branch recirculation except the vein trunk. Surgical procedure 1. The total femoral, superficial femoral and deep femoral veins were exposed as described above and tested to confirm the highest pair of valve dysfunction in the superficial femoral vein. 2. Preparation of the graft vein segment: If the superficial femoral vein is taken from the healthy side, the superficial femoral vein is exposed according to the previous method. After the valve function is confirmed to be good, the venous segments of the same length of the superficial femoral vein are cut out (including the second pair). Valves, exchange and match. If taken from the iliac vein, a continuous incision can be made under the armpit to reveal the iliac vein. After the valve function is good, the venous segment containing the valve is cut to about 2 cm. If the trunk of the iliac vein is a single-arm type, the large saphenous vein with a length of 3 cm is exchanged with the affected limb. If there is still branch reflow, after the removal of the transplant segment, the distal and proximal ends can be ligated. 3. Transplantation of the venous segment: the superficial femoral vein was cut at 1 cm distal to the highest pair of valves, and then the graft vein was placed between the gaps formed by the elastic retraction at the two distal ends of the superficial femoral vein. -0 no damage suture for two contralateral anastomosis. Strictly stop bleeding, place the drainage tube, and suture the incision layer by layer.