Publications by authors named "Shogo Oshikata"
Ossification of the posterior longitudinal ligament (OPLL) is common in East Asia. Arteriovenous fistula at the craniocervical junction (CCJ-AVF), in contrast, is rare. As OPLL occurs most often in the cervical region, these 2 conditions can coexist in the cervical spinal canal of a single patient.
View Article and Find Full Text PDFObjective: Mechanical thrombectomy (MT) for acute cerebral large vessel occlusion (LVO), which involves a cerebral aneurysm in the target vessel, indicates a risk of rupture of the aneurysm. Safety of the MT for LVO involving cerebral aneurysm was examined.
Methods: In all, 240 consecutive patients with LVO were treated with MT between January 2018 and December 2019.
Objective: Fibromuscular dysplasia (FMD) is often diagnosed based on angiography. However, it is difficult to distinguish from vasculitis by angiography. Therefore, it is important to evaluate the detailed intravascular findings of lesions in FMD using optical coherence tomography (OCT).
View Article and Find Full Text PDFArticle Synopsis
- - The process of stent-retriever thrombectomy for blocked cerebral arteries caused by atherosclerosis can be challenging.
- - In a study, three patients with middle cerebral artery blockages successfully reopened their arteries using a mix of aspiration thrombectomy devices and balloon angioplasty.
- - This combined approach proved effective, allowing for smooth insertion of the balloon catheter during the procedure.
Article Synopsis
- This study investigates carotid artery stenting (CAS) with proximal occlusion to prevent cerebral embolism while identifying factors that predict antegrade flow during the procedure.
- Analysis of 143 treated lesions found that antegrade flow occurred in 8.4% of cases, mainly associated with a larger superior thyroid artery (STA) diameter and a higher presence of ECA branches close to the bifurcation.
- The researchers recommend combining distal filter protection with proximal protection for cases showing antegrade flow to avoid potential complications from debris migration.
Background And Purpose: During carotid artery stenting (CAS) with the use of closed cell design stents for unstable plaques, tissue prolapse between stent struts was evaluated by optical coherence tomography (OCT).
Methods: 14 carotid stenosis lesions diagnosed as unstable plaques by MRI were evaluated by OCT imaging during CAS using closed cell stents. Cross sectional OCT images within the stented segment were evaluated at 1 mm intervals.