Aneurysm Formation at the Internal Carotid Artery Bifurcation Is Related to the Vascular Geometry of the Bifurcation.

Background: In this study, we aimed to comparatively evaluate the morphology of internal carotid artery (ICA) bifurcations with and without aneurysms and identify risk factors for aneurysm development that are associated with the bifurcation geometry.

Method: In this two-center study, the computerized tomography angiography data of 1512 patients were evaluated. The study included 64 (4.

The effect of intravenous thrombolysis in stroke patients with unsuccessful thrombectomy.

Background: The benefit of intravenous thrombolysis (IVT) is well established. We aim to study the benefits of IVT in acute ischemic stroke (AIS) patients with large vessel occlusion (LVO) who underwent unsuccessful mechanical thrombectomy (MT).

Methods: We included AIS patients who underwent MT for anterior circulation LVO with failed recanalization (modified treatment in cerebral ischemia [mTICI] score ≤ 2A).

Comparison of combined intravenous and intra-arterial thrombolysis with intravenous thrombolysis alone in stroke patients undergoing mechanical thrombectomy: a propensity-matched analysis.

Background: A combination of intravenous (IVT) or intra-arterial (IAT) thrombolysis with mechanical thrombectomy (MT) for acute ischemic stroke due to large vessel occlusion (AIS-LVO) has been investigated. However, there is limited data on patients who receive both IVT and IAT compared with IVT alone before MT.

Methods: STAR data from 2013 to 2023 was utilized.

Clinical and radiographic outcomes after mechanical thrombectomy in medium-vessel posterior cerebral artery occlusions: Subgroup analysis from STAR.

Background: Whereas mechanical thrombectomy (MT) has become standard-of-care treatment for patients with salvageable brain tissue after acute stroke caused by large-vessel occlusions, the results of MT in patients with medium-vessel occlusions (MEVOs), particularly in the posterior cerebral artery (PCA), are not well known.

Methods: Using data from the international Stroke Thrombectomy and Aneurysm Registry (STAR), we assessed presenting characteristics and clinical outcomes for patients who underwent MT for primary occlusions in the P2 PCA segment. As a subanalysis, we compared the PCA MeVO outcomes with STAR's anterior circulation MeVO outcomes, namely middle cerebral artery (MCA) M2 and M3 segments.

Isolated Cerebral Cyst Hydatid Removal with Dowling's Technique in a 6-Year-Old Pediatric Patient: Case Report.

Hydatid disease, caused by the parasite, is a worldwide zoonosis produced by the larval stage of the tapeworm. In urban living patients with cerebral abscesses, hydatid cysts should not be excluded from the differential diagnosis. We report an exceptional primary cerebral hydatid cyst in which imaging showed a large, round, contrast-enhancing lesion with a mass effect.

Management and Outcome of Intracranial Dural Arteriovenous Fistulas That Have Caused a Hemorrhage in the Posterior Fossa : A Clinical Study.

Objective: We evaluated the diagnosis, treatment, and long-term results of patients with dural arteriovenous fistula (dAVF), which is a very rare cause of posterior fossa hemorrhage.

Methods: This study included 15 patients who underwent endovascular, surgical, combined, or Gamma Knife treatments between 2012 and 2020. Demographics and clinical features, angiographic features, treatment modalities, and outcomes were analyzed.

The Evaluation of Low-Profile Surpass Evolve Flow Diverter for Endovascular Treatment of Distal Cerebral Artery Aneurysms: A Single-Center Experience.

Aim: To report our experience with the 2.5-mm Surpass EvolveTM flow diverter (FD) in the treatment of distal small cerebral artery aneurysms.

Material And Methods: This study included 41 patients with 52 aneurysms.

Treatment of Ruptured Anterior Choroidal Artery Aneurysms by Acute Coiling Followed by Flow Diversion.

Background: Flow-diverter treatments are successful endovascular treatments in protecting important perforating branches during aneurysm treatments. Because these treatments are performed under antiplatelet therapy, acute flow-diverter treatments in ruptured aneurysms are still controversial. Acute coiling followed by flow diversion has emerged as an intriguing and feasible treatment option for ruptured anterior choroidal artery aneurysm treatment.

An Illustrative Case of Vein of Labbe Thrombosis Presented as a Glioma.

Cerebral vein thrombosis is a unique and rare type of cerebrovascular disease. The main challenge in identifying cerebral vein thrombosis is the presence of vague signs and symptoms that can resemble a variety of other intracranial pathologies. Our goal is to present the unique case of a young patient whose MRI scan revealed an abnormally enhancing tumor-like brain lesion that was heterogeneous in intensity and whose intraoperative view and histopathological findings were consistent with the vein of Labbe thrombosis, with ipsilateral transverse and sigmoid sinus involvement.

An Illustrative Case of Bilateral Internal Carotid Artery Occlusion Concomitant with Aneurysm of the Obstructed ICA Reconstituted via Collaterals: Emphasizing the Role of Rescue Collaterals in Decision-Making.

In patients with bilateral internal carotid artery (ICA) obstruction, the basilar and ophthalmic arteries become the most critical arteries for brain perfusion, and the location of aneurysm formation may be associated with increased wall shear stress induced by compromised carotid circulation. Consideration of collateral routes may have an impact on therapeutic decisions for patients undergoing extracranial to intracranial (EC-IC) bypass and aneurysm surgery. We report a rare case of a young woman with bilateral ICA occlusion simultaneous with dissecting aneurysm of the obstructed ICA reconstituted via collaterals, emphasizing the functional value of collaterals and therapeutic strategy.

Craniovertebral junction aneurysms.

Objective: The course of the vertebral artery and its relationship to the C structures render it particularly vulnerable to mechanical trauma. In the present study, we investigated the course of vertebral arteries along the craniovertebral junction (CJ) to cast light on the biomechanical aspects of aneurysm formation, focusing mainly on the relation of the vertebral artery injuries to the CJ bony landmarks. Herein, we report our experience with fourteen cases of craniovertebral junction vertebral artery (CJVA) aneurysms and their presentations, management, and outcomes.

Utility of flow diverters in treatment of acutely ruptured uncoilable aneurysms of the posterior circulation of the brain.

Purpose: Aim of this study is to evaluate safety and efficacy of flow diverters (FDs) in treatment of acutely ruptured posterior circulation aneurysms MATERIALS AND METHODS: Databases of three participating institutions were retrospectively scanned for patients in whom FD placement was attempted for treatment of acutely ruptured vertebrobasilar aneurysms. An interval of 14 days or fewer between the latest ictus and treatment was used as inclusion criterion. Patients with dolichoectasia of vertebrobasilar arteries were excluded.

Endovascular treatment of challenging aneurysms with FRED Jr flow diverter stents: a single-center experience.

Purpose: To analyze clinical safety and efficacy of flow re-direction endoluminal device (FRED) Jr flow diverter for treatment of unruptured, ruptured, or recanalyzed aneurysms.

Materials And Methods: Between October 2019 and February 2022, 25 patients with 31 aneurysms treated with FRED Jr were included in the study. Clinical and radiological records, procedural details, and follow-up outcomes were retrospectively evaluated.

Vertebral arteriovenous fistula due to blunt neck trauma: A case report.

The arteriovenous fistulas (AVFs) of the vertebral artery are usually caused by iatrogenic and penetrating traumas. Vertebral AVF is rarely seen after blunt cervical trauma. A 65-year-old male patient applied to the emergency clinic due to falling from a height of about 3 m.

Influence of galantamine on peripheral nerve degeneration after experimental compression injury of the rat sciatic nerve.

Background: Galantamine is well-known for its neuroprotective effects and is currently used in the treatment of individuals with Alzheimer's disease. In this study, we induced experimental sciatic nerve injury (SCI) in rats to test the beneficial effects of galantamine.

Methods: Thirty male Wistar albino rats were divided into three groups, as follows: sham, SCI + saline, and SCI + galantamine.

A pediatric case of completely thrombosed giant cavernous carotid aneurysm with ipsilateral ICA occlusion mimicking an intra-axial cystic lesion: a case report and review of the literature.

Introduction: There have been a few cases where completely thrombosed cavernous carotid artery (CCA) aneurysms have resembled neoplasms based on neuroimaging data, but no reports have been documented in children.

Case Report: We describe an unusual pediatric case of a huge cavernous sinus mass mimicking a cystic neoplasm with peripheral rim enhancement on magnetic resonance imaging (MRI), where the surgery and subsequent histopathological investigation revealed that this mass was a completely thrombosed giant aneurysm of the CCA. The patient showed postoperatively no new neurological deficits and discharged a week later after surgery.

Endovascular Stroke Therapy Focused on Direct Clot Aspiration Using the SOFIA Catheter for Acute Ischemic Stroke.

Aim: To report our experience of mechanical thrombectomy using the SOFIA < sup > TM < /sup > catheter, in terms of its effectivenessicacy and safety.

Material And Methods: Acute ischemic stroke patients with large vessel occlusions who underwent mechanical thrombectomy, with the SOFIA < sup > TM < /sup > aspiration catheter as the first-line approach, were retrospectively identified. For all patients, the data, including reperfusion success (modified Thrombolysis in Cerebral Infarction [mTICI]), procedural details, clinical status at the baseline and post-discharge at 90 days, and complications, were analysed.

Dual Stenting with New-Generation Stents for Aneurysm Embolization in Acute Subarachnoid Hemorrhage.

Objective: Endosaccular treatment is the backbone of endovascular treatment for acutely ruptured aneurysms. Stent-assisted coiling is a niche technique in this context. Data on X-stenting or Y-stenting (dual crossing stenting, DCS) in the acute phase after subarachnoid hemorrhage (aSAH) are scarce, and the impact of stent properties on the outcome is unknown.

Comparison of Histological and Angiographic Measurements of the Basilar Artery in an Experimental Rabbit Subarachnoid Hemorrhage Model.

Aim: To compare the histological and angiographic measurements of the basilar artery in an experimental rabbit subarachnoid hemorrhage model.

Material And Methods: The basilar artery was measured using both histological and angiographic methods in experimental subarachnoid hemorrhage (SAH) and vasospasm rabbit models. New Zealand white rabbits were randomly categorized into two groups: control and SAH groups.

Urgent operation improves weakness in cauda equina syndrome due to lumbar disc herniation.

Objectives: This study aims to examine the effect of surgical timing on the sphincter function and improvement of motor function in patients with cauda equine syndrome (CES) due to lumbar disc herniation (LDH).

Patients And Methods: Between January 2005 and December 2013, a total of 33 patients (18 males, 15 females; mean age 48.6±2.

WITHDRAWN: Retrospective Analysis of the Endovascular and Surgical Treatment Outcomes in Patients with Cerebral Arteriovenous Malformations.

This article has been withdrawn at the request of the author(s) and/or editor. The Publisher apologizes for any inconvenience this may cause.

The Experience of the Derivo® Embolisation Device in Intracranial Aneurysms.

Aim: To investigate the safety and efficacy of Derivo® embolisation device (DED), a new-generation flow diverter designed to treat cerebrovascular aneurysms, and its long-term clinical outcomes.

Material And Methods: In total, 146 patients with 182 aneurysms were treated with DED. The mean age of the participants was 51.

Endovascular Therapy in Posterior Fossa Brain Arteriovenous Malformations: A Clinical Study.

Aim: To assess posterior fossa brain arteriovenous malformation (PFbAVM) patients who received initial endovascular intervention to reduce the lesion size, as well as embolization for the obliteration of the lesions.

Material And Methods: This retrospective analysis included 16 patients (7 males and 9 females) with PFbAVMs who were treated between 2010 and 2017 via surgery, endovascular techniques, or combinations of modalities. Patient demographic and clinical features, angiographic characteristics, treatment modalities, complications, and outcomes were analyzed.

Endovascular Treatment of Superior Cerebellar Artery Aneurysms.

Aim: To present our experience on superior cerebellar artery (SCA) aneurysms treated with embolization by using current endovascular techniques.

Material And Methods: All SCA aneurysms treated by our endovascular team since 2013 were retrospectively evaluated. Clinical information and angiographic findings on presentation, during treatment and on follow-up were noted.

Cavernous hemangiomas of the third ventricle: Alternative surgical routes in two cases.

Cavernous Hemangiomas (CH) arise from any part of the cerebrum. Intraventricular lesions are rare and pure third ventricular localization is rare for CHs. Cavernomas of the ventricles may present with bleeding or signs associated with hydrocephalus.