Serial dilation to enable ulnar artery access for endovascular neurointervention: Technical report and systematic review of the literature.

Background: For rare neuro-endovascular cases in which transfemoral access is not feasible and the palmar circulation is insufficient for radial artery access, ulnar artery access may be considered.

Materials And Methods: Mechanical thrombectomy via ulnar artery access was performed to preserve the dominant radial artery. The ulnar artery was serial dilated to 7-French with microdilator.