Cerebral hyperperfusion syndrome after endovascular reperfusion therapy for medium vessel occlusion: A case report.

Cerebral hyperperfusion syndrome is a rare but serious complication after revascularization procedures for cerebrovascular diseases. Cerebral hyperperfusion syndrome can develop after treatment of acute ischemic stroke, including intravenous thrombolysis and endovascular treatment of large vessel occlusion. However, to the best of our knowledge, there are no previous reports describing cerebral hyperperfusion syndrome after endovascular treatment of medium vessel occlusion (eg, anterior cerebral artery A2/3 segment).

Acute reperfusion therapy via occluded vertebral artery using a guiding sheath for posterior circulation tandem occlusion: illustrative case.

Background: Vertebral artery (VA) size, anatomy, and occlusion status should be considered when selecting endovascular access for basilar artery mechanical thrombectomy. In a patient with concomitant basilar artery and VA occlusion and a patent but hypoplastic contralateral VA, the occluded VA should be selected. The authors report a technique that utilizes advancing a guiding sheath with attached dilator via an occluded VA.

Large vessel occlusions requiring repeated mechanical thrombectomy caused by silent myocardial infarction in a young adult.

Objectives: Silent myocardial ischemia, defined as objective evidence of myocardial ischemia without symptoms, is associated with ischemic stroke. Nevertheless, silent myocardial infarction is a rare cause of ischemic stroke, especially in young adults with no medical history.

Materials And Methods: Herein, we report a young adult patient with acute ischemic stroke treated with repeated mechanical thrombectomy for recurrent large vessel occlusions caused by left ventricular thrombus following a silent myocardial infarction.

Target Embolization of Dilated Post-PICA Segment for Ruptured PICA-Involved Type Vertebral Artery Dissecting Aneurysm.

Objective: In parent artery occlusion (PAO) for ruptured vertebral artery dissecting aneurysms (RVADA), target embolization using coils in a short segment to occlude only the vasodilated area containing the rupture point is selected as a first-choice procedure at our institute. We focused on RVADA involving the posterior inferior cerebellar artery (PICA) and evaluated the treatment results.

Methods: This study consisted of eight cases with RVADA involving the PICA which were treated between October 2007 and January 2020.