English to Chinese Medical Medical (general) other

下面是两段相关的上下文
sentence 1
Indeed, hemodynamic alterations may be caused that give rise to new capillary (matting) and venular ectasias; following the obliteration of a perforating vein, the pressure on the superficial venous circulation determined by other incontinent perforating veins that cannot be revealed by means of the instrumental examinations available may increase and be manifested at the surface of the skin.

sentence 2：
Indeed, in the lateral region, injecting the telangiectasias has a two-dimensional effect that is not encountered in the other regions; the solution mainly spreads superficially rather than in depth. This engenders a risk of matting on the part of an untreated incontinent perforator.
Hemodynamic matting is caused by incomplete treatment together with an excessive concentration of solution.
不知道matting在这里如何解释比较合适？
Thanks in advance！