A5051107844- Intracranial Aneurysms: Treatment and Complications
- Cerebrovascular and Carotid Artery Diseases
- Vascular Malformations Diagnosis and Treatment
- Traumatic Brain Injury and Neurovascular Disturbances
- Neurosurgical Procedures and Complications
- Intracerebral and Subarachnoid Hemorrhage Research
- Meningioma and schwannoma management
- Moyamoya disease diagnosis and treatment
- ZnO doping and properties
- Gas Sensing Nanomaterials and Sensors
- Acute Ischemic Stroke Management
- Cerebrospinal fluid and hydrocephalus
- Membrane-based Ion Separation Techniques
- Cerebral Venous Sinus Thrombosis
- Aortic Disease and Treatment Approaches
- Membrane Separation Technologies
- Antiplatelet Therapy and Cardiovascular Diseases
- Transition Metal Oxide Nanomaterials
- Arsenic contamination and mitigation
- Pituitary Gland Disorders and Treatments
- Aortic aneurysm repair treatments
- Advanced Authentication Protocols Security
- Spinal Dysraphism and Malformations
- Neurofibromatosis and Schwannoma Cases
- Retinal and Optic Conditions
Severance Hospital
2015-2025
Yonsei University
2015-2025
Gangnam Severance Hospital
2011-2024
Bucheon St. Mary's Hospital
2021
Catholic University of Korea
2021
University Health Network
2021
Toronto Western Hospital
2021
University Health System
2021
University Medical Center
2021
Yonsei University Health System
2021
We aimed to evaluate the long-term clinical outcomes and prognostic factors of symptomatic intracranial unruptured vertebrobasilar artery dissection (siu-VBD).A total 191 patients (M:F = 127:64; median age, 46 years) with siu-VBD were treated between January 2001 December 2008. Presentations, treatments, outcomes, retrospectively analyzed.Clinical manifestations ischemic symptoms headache (n 97) or without 13) 81). Forty-six (24.1%) underwent endovascular treatment. The remaining 145 (75.9%)...
BACKGROUND AND PURPOSE: Ticagrelor is a novel P2Y12 antagonist, and little known about its efficacy safety in the endovascular treatment of aneurysms. This study evaluated ticagrelor versus clopidogrel for stent-assisted coiling or flow-diversion patients with unruptured cerebral MATERIALS METHODS: From November 2003 to February 2019, two hundred one (mean age, 57.5 years; 156 women) 233 aneurysms underwent treatment. All received antiplatelet therapy aspirin plus (clopidogrel group, 121 140...
The uses of wireless sensor networks have increased to be applicable in many different areas, such as military applications, ecology, and health applications. These applications often include the management confidential information, making issue security one most important aspects consider. In this aspect, a user authentication mechanism that allows only legitimate users access network data becomes critical for maintaining confidentiality integrity information. paper, we describe...
Object Carotid artery stenting (CAS) can be an alternative option for carotid endarterectomy in the prevention of ischemic stroke caused by stenosis. The purpose this study was to evaluate influence stent design on incidence procedural and postprocedural embolism associated with CAS treatment. Methods Ninety-six symptomatic asymptomatic patients, consisting 79 males 17 females, moderate severe stenosis a mean age 69.0 years were treated CAS. type (48 closed-cell 48 open-cell stents) randomly...
The purpose of this study was to assess the safety and early outcomes Pipeline device for large/giant or fusiform aneurysms.The implanted in a total 45 patients (mean age, 58 years; M:F=10:35) with 47 aneurysms. We retrospectively evaluated characteristics treated aneurysms, periprocedural events, morbidity mortality, after implantation.The aneurysms were located internal carotid artery (ICA) cavernous segment (n=25), ICA intradural (n=11), vertebrobasilar trunk (n=8), middle cerebral (n=3)....
Vascular complications, including vessel occlusion and hemorrhage, can arise after radiosurgery; however, hemorrhage due to a ruptured de novo aneurysm Gamma Knife radiosurgery (GKS) for tumor is extremely rare. To the authors' knowledge, only single case of formation GKS vestibular schwannoma has been previously reported. In this study, they describe their experience with treatment 74-year-old woman subarachnoid limited cerebellopontine cistern, who had undergone 5 years earlier. Cerebral...
Utilization of a dual-lumen balloon may improve Onyx penetration into isolated dural arteriovenous fistulas (i-DAVFs).To compare the results embolization using with those non-balloon catheter for i-DAVFs.Twenty-nine patients underwent i-DAVFs (n = 14) or 15). Since its introduction, has been preferred. We compared group regarding angiographic outcome, treatment-related complications, total procedural time, injection and number feeders requiring embolization.The showed complete occlusion in...
Stent-assisted coiling of intracranial aneurysms arising from small vessels (≤ 2.0 mm) is a common procedure. However, data regarding its treatment outcomes are scarce. This study evaluated the clinical and radiologic stent-assisted using low-profile stents for parent arteries.From November 2015 to October 2020, sixty-four patients with 66 arteries ≤2.0 mm were treated Low-Profile Visualized Intraluminal Support Junior (LVIS Jr) or Neuroform Atlas stent in single institution. The...
BACKGROUND AND OBJECTIVES: Postclipping cerebral infarction (PCI) remains a major concern after treatment for unruptured intracranial aneurysms (UIAs). However, studies of microsurgical clipping based on diffusion-weighted imaging are limited. We aimed to present the incidence, risk factors, and types PCI its radiological clinical characteristics. METHODS: This was retrospective single-center study in which patients were scheduled undergo anterior circulation UIAs. The overall incidence...
Synthesized urushiol derivatives possessing different carbon atomic length in the alkyl side chain inhibited growth of food spoilage and pathogenic microorganisms. Particularly, non-allergenic 3-pentylcatechol showed a broad antimicrobial spectrum on an agar plate. Most microorganisms were sensitive to liquid culture. The morphologies changed after treatment 3-pentylcatechol.
<h3>BACKGROUND AND PURPOSE:</h3> Flow-diverter treatment for previously stented aneurysms has been reported to be less effective and prone complications. In this study, we evaluated the effectiveness safety of flow diverters recurrent after stent-assisted coiling. <h3>MATERIALS METHODS:</h3> Patients who underwent flow-diverter placement coiling between March 2015 2019 were recruited. Clinical radiographic characteristics clinical angiographic outcomes retrospectively evaluated....
Background and Purpose Moyamoya disease (MMD) is a rare form of intracranial stenoocclusive that can be associated with aneurysms.We evaluated the clinical features outcomes MMD-associated aneurysms while focusing on their locations.Methods Between January 1998 December 2018 there were 1,302 adult pediatric patients diagnosed as MMD at single institution.These included 38 44 aneurysms.The classified into two groups based locations: major-artery non-major-artery radiological data for reviewed...
<h3>BACKGROUND AND PURPOSE:</h3> The detection of cerebral aneurysms on MRA is a challenging task. Recent studies have used deep learning–based software for automated and reported high performance. purpose this study was to evaluate the incremental value using by 2 radiologists, neurosurgeon, neurologist. <h3>MATERIALS METHODS:</h3> TOF-MRA examinations intracranial were retrospectively extracted. Four physicians interpreted blindly. After washout period, they again software. Sensitivity...
ABSTRACT BACKGROUND AND PURPOSE The purpose of this study was to compare clinical outcomes and treatment‐related complications between coiling clipping for ruptured distal anterior cerebral artery (DACA) aneurysms. METHODS Eighty‐four consecutive patients (M:F = 36:48; mean 53.8 years) with DACA aneurysms were treated by either ( n 46, 54.8%) or 38, 45.2%). procedure‐related evaluated compared the two groups. RESULTS Procedure‐related tend occur more frequently in 6, 13.0%) than group 1,...
We evaluated the rupture risk of multiple cerebral aneurysms in aspects various morphological parameters, and determined which parameter can be a reliable predictor as one aneurysm ruptured, others did not.Between 2007 2012, three-dimensional (3D) angiographic images 85 patients harboring (85 ruptured 104 unruptured aneurysms) were used to assess following parameters: geometry itself, e.g., maximal size, aspect ratio, bottleneck height/width undulation, daughter sac; architecture surrounding...
Magnetic resonance imaging (MRI) has been used to screen and follow-up spinal dural arteriovenous fistulae (SDAVF). The purpose of this study was evaluate the association between MRI findings neurologic function in SDAVF. This also investigated clinical features treatment results A total 15 consecutive patients who underwent embolization or surgery for SDAVF were included. We treated seven (60%) with six (40%) surgery. analysed features, findings, results, function. Neurologic measured by...
Background Little has been reported about the feasibility and durability of a Low-profile Visualized Intraluminal Support Junior (LVIS Jr) Y-stenting device for wide-neck bifurcation aneurysms. Purpose To evaluate LVIS Jr coiling unruptured Methods We identified patients in whom was attempted aneurysms from prospectively maintained registry referral hospital. Procedural success rate, treatment-related morbidity, clinical angiographic outcomes were retrospectively assessed. Results total 21...
Internal carotid artery (ICA) rupture during transsphenoidal surgery (TSS) is an extremely difficult complication to treat. This study aimed evaluate the immediate and long-term outcomes of covered stent placement for emergency reconstruction ruptured ICAs or after TSS.Seven patients underwent a ICA TSS. The safety effectiveness were retrospectively analyzed.Pretreatment angiography showed active bleeding in 6 (5 intraoperative 1 postoperative) pseudoaneurysm patient. Of with bleeding, 5...