Anterior Cerebral Artery Fusiform Aneurysm Attributable to Bilateral Persistent Primitive Olfactory Artery: Case Report.

Persistent primitive olfactory arteries (PPOAs) are a rare variant of the anterior cerebral artery (ACA). Cerebral aneurysms may arise in the PPOA; most are saccular and on the unilateral PPOA. We report a 66-year-old male with bilateral PPOAs and a fusiform aneurysm on the left side detected at a health check-up.

Repair of multiple abdominopelvic aneurysms: is the open approach still valid? A case report.

Multiple Aneurysmal Arterial Disease (MAD) is an extremely rare arterial vascular condition and is produced by an abnormal alteration of smooth muscle cells and neutrophils, producing a multiple-aneurysmal degeneration. We present the case of a 36-year-old patient with a MAD in the cerebral territory and extremities with no surgical indication; however, with an aneurysm of the right inferior renal segmental artery, inferior mesenteric artery, left common iliac artery, and right internal iliac artery with surgical indication. An open approach with single-stage surgical repair, including graft interposition, bypass, exclusion, and vascular reimplantation, was performed.

Delayed Aneurysm Rupture Following Endovascular Treatment with Contour Device: A Case Report.

Delayed rupture of intracranial aneurysms after endovascular treatment is a rare but serious complication. We report the first documented case of late aneurysmal rupture following treatment with a Contour intrasaccular device. A patient in their 60s with a basilar tip aneurysm underwent endovascular treatment using a 14-mm Contour device.

Genetic susceptibility and potential therapeutic targets of unruptured intracranial aneurysms: A genome-wide study based on Mendelian randomization.

Background: At present, although some studies have offered certain insights into the genetic factors related to unruptured intracranial aneurysms (uIAs), the potential genetic targets associated with uIAs remain largely unknown. Thus, this research adopted Mendelian randomization (MR) analysis to study two genome-wide association studies on uIAs, aiming to determine the reliable genetic susceptibility and potential therapeutic targets for uIAs.

Methods: This study summarizes the data of expression quantitative trait loci (eQTL) as exposure data.

Treatment of Intracranial Aneurysms with the FRED X Flow Diverter Stent: Mid-term Angiographic and Safety Results.

Purpose: The aim of our study was to assess the mid-term efficacy and safety of the FRED X flow diverting stent (FDS) in the treatment of intracranial aneurysms. The FRED X FDS is relatively new with limited data on its longer-term effectiveness and safety profile.

Methods: Patients with intracranial aneurysms treated with the FRED X FDS at two UK centres, between March 2021 and July 2022 with at least 18 months follow-up, were retrospectively reviewed.

An increase in flow-diverter oversizing values as an independent risk factor for developing more severe in-stent stenosis. A retrospective single-center study based on flow diversion of supraclinoid internal carotid artery aneurysms.

Introduction: In the past decade, flow diverters (FDs) have increasingly been used to treat cerebral aneurysms with unfavorable morphology in which other endovascular techniques fall short of being as effective. In-stent stenosis (ISS) is one of the most puzzling and frequent risks of flow diversion therapy observed on follow-ups. This complication, although mostly placid in its clinical course, can have dire consequences if patients become symptomatic.

Construction of a poor prognosis prediction and visualization system for intracranial aneurysm endovascular intervention treatment based on an improved machine learning model.

Objective: To evaluate the clinical utility of improved machine learning models in predicting poor prognosis following endovascular intervention for intracranial aneurysms and to develop a corresponding visualization system.

Methods: A total of 303 patients with intracranial aneurysms treated with endovascular intervention at four hospitals (FuShun County Zigong City People's Hospital, Nanchong Central Hospital, The Third People's Hospital of Yibin, The Sixth People's Hospital of Yibin) from January 2022 to September 2023 were selected. These patients were divided into a good prognosis group ( = 207) and a poor prognosis group ( = 96).

Radiological insights into fibromuscular dysplasia unveiled by intracranial aneurysms and iliac vein hypoplasia in suspected DVT.

Fibromuscular Dysplasia (FMD) is a nonatherosclerotic, noninflammatory vascular disorder predominantly affecting women aged 18 to 65 years. This case report highlights a 74-year-old female diagnosed with FMD incidentally during evaluation for deep vein thrombosis (DVT). Imaging revealed significant vascular anomalies, including a giant intracranial carotid aneurysm and a hypoplastic iliac vein with extensive collateral formation.

Comparison of Woven EndoBridge and stent-assisted coiling for treatment of acutely ruptured wide-neck bifurcation aneurysms: Single-center experience.

Objective: Treating wide-necked bifurcation aneurysms (WNBA) is challenging. Nevertheless, recent progress in endovascular techniques is promising. Woven EndoBridge devices (WEB) have exhibited outcomes comparable to conventional treatments like stent-assisted coiling (SAC) in treating aneurysms.

Inflammatory changes in the choroid plexus following subarachnoid hemorrhage: the role of innate immune receptors and inflammatory molecules.

Introduction: The choroid plexus is located in the cerebral ventricles. It consists of a stromal core and a single layer of cuboidal epithelial cells that forms the blood-cerebrospinal barrier. The main function of the choroid plexus is to produce cerebrospinal fluid.

Retrospective multicenter analysis of the Trenza Embolization Device for endovascular therapy of intracranial aneurysms: initial results and short-term follow-up.

Background: Intrasaccular devices are increasingly used in endovascular therapy of intracranial aneurysms, in particular wide-necked and ruptured aneurysms. The Trenza Embolization Device (TED) is an innovative intrasaccular device for medium- to large-sized aneurysms. Currently, literature about the TED is scarce.

Exploring Mixed Reality for Patient Education in Cerebral Angiograms: A Pilot Study.

Background: Cerebral aneurysms (CAs) affect 3-5% of the general population, with saccular aneurysms being the most common type. Despite advances in treatment, patient understanding of CAs and associated procedures remains limited, impacting informed consent and treatment outcomes.

Objectives: This pilot study aims to evaluate the effectiveness of mixed reality (MR) technology in enhancing patient education and understanding of cerebral angiograms and aneurysm treatment, thereby improving the patient-surgeon communication process.

Aneurysmal rupture in microscopic polyangiitis: a case-based review.

Microscopic polyangiitis (MPA) affects small and medium vessel, which sometimes leads to arterial aneurysms. In English database, only 15 reports refer to ruptured aneurysms in MPA. We experienced a fatal case with MPA who developed multiple visceral aneurysms, resulting in rupture of the hepatic aneurysm.

Economic evaluation in the treatment of unruptured intracranial aneurysms in the Swiss healthcare system: a retrospective cost evaluation.

The choice of modality of treatment for unruptured intracranial aneurysms is based on various clinical aspects and the patient's preference. Financial considerations should not be among these. To evaluate any financial variations between endovascular and microsurgical treatment of unruptured intracranial aneurysms in the Swiss healthcare system, we retrospectively reviewed 100 consecutive aneurysm cases treated as inpatients in our institution.

Screening key genes for intracranial aneurysm rupture using LASSO regression and the SVM-RFE algorithm.

Background: Although an intracranial aneurysm (IA) is widespread and fatal, few drugs can be used to prevent its rupture. This study explored the molecular mechanism and potential targets of IA rupture through bioinformatics methods.

Methods: The gene expression matrices of GSE13353, GSE122897, and GSE15629 were downloaded.

Cross-sectional and longitudinal association of sleep patterns and aneurysmal vulnerability biomarkers on high-resolution magnetic resonance vessel wall imaging.

Background: Aneurysm wall enhancement (AWE) on vessel wall imaging (VWI) scans is a robust biomarker for aneurysmal vulnerability. This study aimed to explore the association of different sleep patterns with AWE and other vulnerability features.

Methods: Patients with unruptured intracranial aneurysms were prospectively recruited.

Introducing the Caliber-Flow Status Scale (CFSS): a novel tool for assessing covered cortical branch status after flow diverter treatment of middle cerebral artery aneurysms.

Background: This study assessed caliber and flow changes of covered cortical middle cerebral artery (MCA) branches using the new Caliber-Flow Status Scale (CFSS), postoperative diffusion-weighted imaging (DWI) lesions, and clinical outcome following flow diverter (FD) treatment of MCA aneurysms.

Methods: This single-center retrospective study collected data from patients treated with FD between January 2016 and March 2024, including patient characteristics, aneurysm features, postoperative DWI lesions, and clinical outcomes. Vessel status was assessed using CFSS: 1a (normal caliber and flow), 1b (normal caliber, reduced flow), 2a (reduced caliber, normal flow), 2b (reduced caliber and flow), and 3 (occlusion).

Potential for reduction of radiation dose in the assessment of the lead orientation in directional deep brain stimulation electrodes.

Purpose: Directional deep brain stimulation (dDBS) relies on electrodes steering the stimulation field in a specific direction. Post implantation, however, the intended and real orientation of the lead frequently deviates e.g.

Intentional staged embolization via the "highway bypass" using a radial artery graft for a large posterior circulation aneurysm: illustrative case.

Background: The presence of significant tortuosity in access routes to aneurysms can interfere with catheter guidance and manipulation and significantly impact treatment strategies.

Observations: In this report, the authors combined intentional staged aneurysm embolization with the construction of a new direct access route, which they call a "highway bypass," for a symptomatic posterior circulation cerebral aneurysm that was difficult to access with a catheter. Notably, the highway bypass is used for catheter passage, and technical tips should be considered.

Retrograde thrombosis of the superficial sylvian vein following liquid adhesive hemostat use during craniotomy: illustrative case.

Background: Intravascular injection of liquid adhesive hemostats is a rare but serious complication that can result in cerebral thromboembolism.

Observations: A 64-year-old female underwent orbitozygomatic craniotomy for posterior communicating artery aneurysm clipping with the routine use of a flowable hemostatic agent during extradural dissection. After placement of the aneurysm clip, flow was confirmed through the parent vessel and nearby branches.

Pipeline embolization device for aneurysm recurrence after stent-assisted coiling.

Objective: Since the emergence of the Pipeline Embolization Device (PED), its off-label use has significantly improved the treatment effectiveness of complex intracranial aneurysms, including the treatment of recurrent aneurysms. Although PED is effective in this situation, there is still a lack of evidence-based medicine for its role in recurrent aneurysms after stent-assisted coiling. The aim of this study is to evaluate the safety and efficacy of PED treatment for recurrent aneurysms after stent-assisted coiling.

Video-based propagation of tacit knowledge during coil embolization of intracranial aneurysms.

Background: Neuroendovascular treatment of cerebral aneurysms is considered a basic procedure for neurosurgeons and interventional neuroradiologists; however, its critical technical nuances, termed "tacit knowledge," are challenging to impart. This study aimed to evaluate the efficacy of our novel video recording and editing method in enhancing trainees' experience.

Methods: A wearable camera (wearable recording) and multiple media sources in a hybrid operating room (hybrid recording) were used to capture procedural details such as audio and conversation, thus enabling a re-experience.

Presentation, management and outcomes of ruptured intracranial aneurysms in Africa: A systematic review and meta-analysis.

Background: Approximately two percent of the world's population are affected by intracranial aneurysms (IAs). This study aimed to evaluate literature regarding presentation, treatment and outcomes of ruptured IAs in Africa.

Methods: A systematic review of the literature using PubMed/MEDLINE, SCOPUS, Web of Science and Google Scholar databases was conducted according to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines.