Kinya Yokoyama

ORCID: 0000-0002-1039-4504
Publications
Citations
Views
---
Saved
---
About
Contact & Profiles
Research Areas
  • Intracranial Aneurysms: Treatment and Complications
  • Moyamoya disease diagnosis and treatment
  • Neurological Complications and Syndromes
  • Vascular Malformations Diagnosis and Treatment
  • Cerebrovascular and Carotid Artery Diseases
  • Acute Ischemic Stroke Management
  • Neurosurgical Procedures and Complications
  • Aortic Disease and Treatment Approaches
  • Meningioma and schwannoma management
  • Cerebral Venous Sinus Thrombosis
  • Venous Thromboembolism Diagnosis and Management
  • Aortic aneurysm repair treatments
  • Liver Diseases and Immunity
  • Blood properties and coagulation
  • Gallbladder and Bile Duct Disorders
  • Extracellular vesicles in disease
  • Circular RNAs in diseases
  • Intracerebral and Subarachnoid Hemorrhage Research
  • Lung Cancer Diagnosis and Treatment
  • Biliary and Gastrointestinal Fistulas
  • Drug Transport and Resistance Mechanisms
  • MicroRNA in disease regulation
  • Cardiovascular and Diving-Related Complications
  • Platelet Disorders and Treatments
  • Cardiac tumors and thrombi

Nagoya University
2014-2024

Aichi Medical University
2022

Nagoya University Hospital
2022

Tosei General Hospital
2022

National Hospital Organization
2011-2020

Nagoya Medical Center
2011-2020

Nagoya City University
2019

Center For Reconstructive Urethral Surgery
2015

Hirosaki University
2004

Tokyo National Hospital
2000

Intracranial revascularization surgeries are an effective treatment for moyamoya disease and other intracranial vascular obliterative diseases. However, in some cases, wound-related complications develop after surgery. Although the incidence of wound complication is supposed to be higher than that with a usual craniotomy, this has rarely been focus studies literature report outcomes surgeries. Here, relationship between their statistically assessed.Between October 2004 February 2010, 71...

10.3171/2014.12.jns132602 article EN Journal of neurosurgery 2015-07-03

Transient neurological events (TNEs) occur frequently in the acute phase after direct bypass surgery for moyamoya disease (MMD), but there is currently no way to predict them. FlowInsight a specialized software analyzing indocyanine green (ICG) videoangiography taken with surgical microscope. The purpose of this study was investigate whether intraoperative evaluation local hemodynamic changes around anastomotic sites using could incidence and duration TNEs.

10.3171/2017.10.jns171523 article EN Journal of neurosurgery 2018-04-20

OBJECTIVE Moyamoya disease (MMD) is a rare cerebrovascular characterized by progressive occlusion of the internal carotid artery and secondary formation collateral vessels. Patients with MMD have ischemic attacks or intracranial bleeding, but pathophysiology remains unknown. In this study, authors aimed to identify gene expression profile specific in MMD. METHODS This was single-center, prospectively sampled, retrospective cohort study. Microsamples middle cerebral (MCA) were collected from...

10.3171/2021.6.focus20870 article EN Neurosurgical FOCUS 2021-09-01

The surgical techniques for treatment of chronic subdural hematoma (CSDH), a common neurosurgical condition, have been discussed in lot clinical literature. However, the recurrence proportion after CSDH surgery remains high, ranging from 10 to 20%. standard procedure involves craniostomy evacuate hematoma, but irrigating cavity during is debatable. authors hypothesized that choice irrigation fluid might be key factor affecting outcomes surgery. This multicenter randomized controlled trial...

10.1186/s13063-023-07889-7 article EN cc-by Trials 2024-01-02

Moyamoya disease (MMD) is a rare cerebrovascular characterized by progressive stenosis of the internal carotid artery (ICA) and secondary formation collateral vessels. Revascularization surgery performed in patients with MMD to prevent stroke; however, pathogenesis remains unknown. Recently, long noncoding RNAs (lncRNAs) have been found play key role gene regulation are implicated various vascular diseases. However, lncRNA expression profile lesions has not investigated. In this study...

10.3171/2022.5.jns22579 article EN Journal of neurosurgery 2022-08-05

OBJECTIVE Cerebral infarction is a common complication in patients undergoing revascularization surgery for moyamoya disease (MMD). Although previous statistical evaluations have identified several risk factors postoperative brain ischemia, the ability to predict its occurrence based on these limited predictors remains inadequately explored. This study aimed assess feasibility of machine learning algorithms predicting cerebral after with MMD. METHODS retrospective was conducted across two...

10.3171/2024.1.jns232173 article EN Journal of neurosurgery 2024-04-06

The protocol for antiplatelet therapy after stent-assisted coil embolization (SACE) intracranial aneurysms is not well established. In particular, the indications single (SAPT) discontinuation remain controversial. authors investigated long-term outcomes of SAPT SACE among patients at a institution.Patients who underwent during period from 2010 to 2020 and were followed up > 1 year included in this study. delayed ischemic hemorrhagic complication rates examined follow-up. Moreover, risk...

10.3171/2022.6.jns22815 article EN Journal of neurosurgery 2022-08-05

Moyamoya vasculopathy (MMV) associated with Graves' disease (GD) is a rare condition resulting in ischemic stroke accompanied by thyrotoxicity. Radiological findings of vasculitis have been reported the walls distal internal carotid arteries (ICAs) these patients; however, no reports described detail processes progression lesions proximal ICA. Moreover, treatments to prevent recurrence and MMV not yet sufficiently elucidated. We report progressive case GD review literature clarify...

10.1186/s12883-019-1262-1 article EN cc-by BMC Neurology 2019-03-02

Genetic factors alone cannot explain the pathophysiology of moyamoya disease (MMD), and environmental such as an immune response are thought to be involved. Oral gut microbiomes have attracted attention in some vascular autoimmune diseases. However, relationship between MMD these is yet thoroughly investigated. This prospective case-control study aimed compare Japanese patients with those healthy individuals identify specific bacteria involved MMD. Saliva fecal samples were collected from 16...

10.1038/s41598-023-45755-3 article EN cc-by Scientific Reports 2023-10-29

Cerebral tumor embolism is a rare cause of acute ischemic stroke, and extracardiac carcinoma an extremely cause. A 34-year-old man who had been diagnosed with lung cancer developed right hemiparesis aphasia, the National Institutes Health Stroke Scale (NIHSS) score 17. Magnetic resonance imaging (MRI) showed early change in insular cortex frontotemporal lobe left internal carotid artery (ICA) terminal occlusion was confirmed by magnetic angiogram (MRA). Mechanical thrombectomy (MT) contact...

10.2176/nmccrj.cr.2019-0205 article EN NMC Case Report Journal 2020-01-01

Intracranial aneurysms (IA) in infants are reportedly rare at 0.5% to 4.5% of all aneurysms. Furthermore, subarachnoid hemorrhage younger than three months even rarer as it has been reported approximately 20 cases only till date. A 3-month-old infant with seizures and impaired consciousness was admitted our hospital. Three-dimensional computed tomography angiography (3D-CTA) revealed a dissecting aneurysm maximum diameter 13 mm the right M2. Internal trapping using detachable coil were...

10.2176/jns-nmc.2022-0369 article EN NMC Case Report Journal 2023-06-25

OBJECTIVE Transient neurological events (TNEs) are among the most important after revascularization surgery in pediatric patients with moyamoya disease (MMD). Although hemodynamic changes and crying representative factors of TNEs, brain compression by encephalomyosynangiosis (EMS) is another cause TNEs. Therefore, authors assumed that making EMS as thin possible reduces frequency However, thin-split can lead to insufficient development collateral vessels. This study aimed evaluate effects...

10.3171/2023.8.peds23295 article EN Journal of Neurosurgery Pediatrics 2023-10-01
Coming Soon ...