[Clinical investigation of in-stent restenosis following self-expanding intracranial artery stenting].

ISR following implantation of self-expanding intracranial stents is associated with elevated LDL-C levels, severe preoperative stenosis, and high residual stenosis. Optimizing lipid control and minimizing residual stenosis, especially in lesions of the intracranial internal carotid artery, may help reduce the risk of restenosis.