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 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.

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.

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 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.

Bioresorbable Vascular Scaffolds in Interventional Neuroradiology.

Purpose: Bioresorbable vascular scaffolds (BVS) have changed practice patterns in cardiology. These resorbable stents have not yet been utilized in the cerebrovascular circulation. We report the initial experiences with these devices in interventional neuroradiology.

Tapered Flow Diverters in the Treatment of Intracranial Aneurysms.

Aim: To report the initial experience of cerebral aneurysm treatment with Tapered flow diverters (TFDs).

Material And Methods: Thirty patients with 34 aneurysms underwent cerebral aneurysm treatment with TFD (Silk, Balt, Montmorency, France) between March 2011 and March 2016. Procedural findings, complications, clinical and imaging follow-up were assessed retrospectively.

Silk Device for the Treatment of Intracranial Aneurysms, Part 2: Factors Related to Clinical and Angiographic Outcome.

Aim: To report patient and procedure-related factors affecting the angiographic and clinical outcome in patients treated with the Silk device.

Material And Methods: All patients with intracranial aneurysms in whom treatment was attempted with the Silk flow diverter by our neurovascular team between October 2010 and November 2013 were included consecutively. The data was analyzed by an independent stroke neurologist not involved in the treatment of the patients.

Silk Device for the Treatment of Intracranial Aneurysms. Part 1: Peri-Procedural Results, Technical Aspects and Learning Curve.

Aim: We evaluated the procedural outcomes of intracranial aneurysm treatment with the Silk device and its relation with operator experience. We also detailed some technical points we learned throughout our experience.

Material And Methods: One hundred and six consecutive patients with intracranial aneurysms treated using Silk (BaltExtrusion, Montmorency, France) stent between October 2010 and November 2013 were included.

Flow Diversion in Middle Cerebral Artery Aneurysms: Is It Really an All-Purpose Treatment?

Background And Objective: The outcome of flow diversion for middle cerebral artery (MCA) aneurysms, one of the most common sites for intracranial aneurysms, has not been defined thoroughly. We assessed our outcomes in MCA aneurysms (MCAAs) treated by flow diversion, i.e.

Vena Cava Filters are not Superior to Low Molecular Weight Heparin in Venous Thromboembolism Prophylaxis: A Study on Long-Term Immobilized Neurosurgical Patients.

Aim: Deep venous thrombosis (DVT) and pulmonary embolism (PE) are the most frequent surgical problems and associated with high morbidity and mortality. Neurosurgical patients constitute a unique group where prophylaxis with anticoagulant and antiaggregant agents are relatively contraindicated due to the natural course of vascular problems such as aneurysms, hemorrhagic tumors or hematomas or increased vulnerability to complex spinal surgeries and trauma.

Material And Methods: We included 67 patients predicted to be immobilized for 2 or more months in this retrospective analysis.

Multiple simultaneous venous and arterial thromboses in a patient with factor V Leiden disorder: Detection by multislice computed tomography.

Arterial thrombosis is extremely rare in patients with factor V Leiden (FVL) mutation. Recent advances in multislice computed tomography (MSCT) technology facilitated diagnosis of thromboembolic events accurately without delay. We report a patient with FVL mutation and acute bilateral lower extremity deep venous thromboses, pulmonary thromboembolism, and acute left anterior descending artery thrombosis, all diagnosed by MSCT.

Dual stenting using low-profile LEO baby stents for the endovascular management of challenging intracranial aneurysms.

Background And Purpose: Endovascular treatment of wide-neck, complex, and distally located cerebral aneurysms is a challenging issue. This study evaluated the safety and efficacy of dual stent placement by using a low-profile stent system (LEO Baby) for the treatment of challenging distal intracranial aneurysms.

Materials And Methods: We retrospectively reviewed patients in whom at least 1 LEO Baby stent was used in the context of dual stent placement for the treatment of intracranial aneurysms.

Preliminary experience with squid: a new liquid embolizing agent for AVM, AV fistulas and tumors.

Aim: The aim of the present study was to analyze our experience with a new liquid embolic agent, Squid, for the treatment of cerebral vascular lesions.

Material And Methods: We present 28 patients who were treated with two formulations of Squid (Squid 18 and Squid 12). The lesions included 16 arteriovenous malformation (AVM)s (Spetzler-Martin grade 2 in 8, 3 in 6 and 4 in 2), 9 arteriovenous (AV) fistulas, 2 tumors (glomus tumor and angiofibroma) and 1 AICA aneurysm.

It appears to be safe to start chemotherapy on the day of implantation through subcutaneous venous port catheters in inpatient setting.

Goals: It is generally recommended to wait for at least 24 h before starting chemotherapy after implanting venous port catheters (VPC). Our aim was to evaluate whether it is safe to start chemotherapy on the day of implantation.

Patients And Methods: One hundred eighty patients who had to be given chemotherapy on the day of VPC implantation at our institution from June 2005 to April 2007 were included.

Ultrasonography and fluoroscopy-guided insertion of chest ports.

Aims: To evaluate the results of ultrasonography and fluoroscopy-guided percutaneous placement of internal jugular vein catheters and subcutaneous chest port system in patients with carcinoma.

Methods: The data of 1418 patients in whom the devices were implanted from 2003 to 2007 in interventional radiology unit were evaluated prospectively.

Results: The median age was 45 years (range 23-70), 658 were women and 760 were men.

Focal increased cortical density in immediate postembolization CT scans of patients with intracranial aneurysms.

Background And Purpose: Cortical hyperdensity was observed in the immediate postembolization CT scans of some patients with intracranial aneurysms following uneventful endovascular treatments. The clinical significance and possible underlying mechanism were evaluated.

Material And Methods: Ninety-three consecutive patients with a total of 100 intracranial aneurysms, treated by endosaccular packing, were studied.