Developments in subintimal angioplasty in the infrainguinal segment.

Since it was first described in 1990, subintimal angioplasty (SIA) has become an established percutaneous procedure for the treatment of symptomatic lower limb arterial occlusions. The concept of this technique is to create a dissection in the subintimal plane in order to cross an occluded intraluminal segment, then to re-enter the true lumen of the patent distal artery. Balloon dilatation of this subintimal channel results in a new …