Acute thromboses and occlusions of dual layer carotid stents in endovascular treatment of tandem occlusions.

Purpose: To evaluate the occurrence and risk factors of acute in-stent thrombosis or stent occlusion in patients with tandem occlusions receiving intracranial mechanical thrombectomy and emergent extracranial internal carotid artery stenting with a dual layer carotid stent.

Methods: Multicenter retrospective data collection and analysis of stroke databases of seven comprehensive stroke centers from three European countries.

Results: Overall, 160 patients (mean (SD) age 66 (12) years; 104 men (65%); median (IQR) baseline NIHSS 14 (9-18); IV lysis, n=97 (60.