扩张超薄皮瓣的血液循环变化规律

为了探索扩张超薄皮瓣的血液循环变化规律，对１７例耳廓缺损畸形患者，在耳区皮肤的真皮下血管网深层埋置扩张器，对皮肤进行预扩张，观察扩张的薄皮肤血运变化有一定规律性：当扩张容量过多时，局部皮肤变苍白，或出现青紫，皮肤表面血管呈瘀血性网状扩张等。只要能注意操作的要点，扩张皮肤均能顺利渡过血循环障碍。１７例应用扩张后的超薄皮瓣作耳廓成形术，成功１４例，失败３例。

OBSERVATION OF THE PATTERN OF CHANGES OF BLOOD SUPPLY IN SUPER THIN SKIN FLAP DURING EXPANSION /

In order to investigate the pattern of the changes of blood supply of the vascular super thin skin flap during expansion, in 17 patients, under the subdermal vessel net works layer of the periauriclar area, an expander was placed, and the skin was preliminarily expanded. The changes of blood supply were found regular: When the injected fluid volume was excessive, the skin became pale or cyanotic, the skin showed congestive telangiectasis. If great care was given during the procedure, the expanded skin could pass safely through the stage of poor blood circulation. The expanded super thin skin flap were applied in auriculoplasty in 17 patients. The results included 3 failures, and 14 satisfactory.