Comparative analysis of intraoperative MRI and early postoperative MRI findings in glioma surgery patients.

Objective: The extent of resection (EOR) is an important prognostic factor for both low- and high-grade gliomas. Intraoperative MRI (iMRI) has been used to increase the EOR in glioma surgery. While a recent study reported differences between iMRI and early postoperative MRI (epMRI), their specific relationship to postoperative clinical symptoms remains unclear.

Midline invasion predicts poor prognosis in diffuse hemispheric glioma, H3 G34-mutant: an individual participant data review.

Introduction: Diffuse hemispheric glioma, H3 G34-mutant (DHGs), is a newly categorized tumor in pediatric-type diffuse high-grade gliomas, World Health Organization grade 4, with a poor prognosis. Although prognostic factors associated with genetic abnormalities have been reported, few reports have examined the clinical presentation of DHGs, especially from the viewpoint of imaging findings. In this study, we investigated the relationship between clinical factors, including imaging findings, and prognosis in patients with DHGs.

Near-Infrared Spectroscopy Might Help Prevent Onset of Cerebral Hyperperfusion Syndrome.

Cerebral hyperperfusion syndrome (CHS) is a rare but fatal perioperative complication after surgical correction of carotid stenosis. Despite numerous treatment options for preventing CHS, it does occur in some patients. We developed the outlet gate technique (OGT), in which the embolic balloon was deflated gradually in accordance with the ratio of oxygen saturation measured by a brain oximeter of the ipsilateral brain region to that in the contralateral region.

A Child with Paradoxical Cerebral Embolism in Whom Mechanical Thrombectomy Led to a Favorable Outcome.

Objective: We report a case of paradoxical cerebral embolism caused by patent foramen ovale (PFO) that was treated by the direct aspiration first pass technique (ADAPT).

Case Presentation: The case involved a 12-year-old boy who had symptoms of dizziness and vomiting the day prior to being admitted to the emergency department. The following morning, consciousness disorder, dysarthria, and right paresis were observed, and he was transferred to our hospital.

[A Case of Giant Cerebral Aneurysm Treated with Multiple Sheaths Directly Punctured into the Carotid Artery].

When it is difficult to approach the brachial or femoral artery during endovascular surgery, an alternative approach is the direct puncture of the carotid artery. In this case of a giant cerebral aneurysm, we punctured the carotid artery directly and performed flow diverter stent placement and endosaccular coil embolization. Although the procedure required two thick access routes, it was performed after administering two antiplatelet drugs and an anticoagulant in order to achieve reliable hemostasis of the puncture sites after the operation.