Surgical treatment in predominantly arterial defects.

The predominantly arterial defects are not common. Four anatomical forms are distinguished: truncular aplasia or obstruction, truncular dilatation, extratruncular infiltrating form and extratruncular limited form. They are demonstrated through an analysis of 40 cases treated by the authors. The therapeutic principles for them are the same as those applying to standard vascular surgery. Regarding the infiltrating extratruncular lesion, an initial embolization through the afferent artery and a series staged operation are suggested.