Kazuya Sakamoto

ORCID: 0009-0007-5809-722X
Publications
Citations
Views
---
Saved
---
About
Contact & Profiles
Research Areas
  • Cerebrovascular and Carotid Artery Diseases
  • Intracerebral and Subarachnoid Hemorrhage Research
  • Neurosurgical Procedures and Complications
  • Coronary Interventions and Diagnostics
  • Iron Metabolism and Disorders
  • Erythropoietin and Anemia Treatment
  • Lipoproteins and Cardiovascular Health
  • Hemoglobinopathies and Related Disorders
  • Chemical Synthesis and Analysis
  • Intracranial Aneurysms: Treatment and Complications
  • Cardiac Valve Diseases and Treatments
  • Cancer, Hypoxia, and Metabolism
  • Gastrointestinal Bleeding Diagnosis and Treatment
  • Cardiovascular and Diving-Related Complications
  • Cardiac Arrhythmias and Treatments
  • Head and Neck Surgical Oncology
  • Congenital Diaphragmatic Hernia Studies
  • Frailty in Older Adults
  • Tracheal and airway disorders
  • Vascular Malformations Diagnosis and Treatment
  • Cerebrospinal fluid and hydrocephalus
  • Nutrition and Health in Aging
  • Renal cell carcinoma treatment
  • Acute Ischemic Stroke Management
  • Blood Coagulation and Thrombosis Mechanisms

Sakakibara Hospital
2024

National Institute of Technology, Tomakomai College
2015-2023

Fukushima Medical University
2022

Tokushima Red Cross Hospital
2022

Star General Hospital
2018

Tokyo University of Pharmacy and Life Sciences
2017

Osaka University
2004

Isesaki Fukushima Hospital
1999

Isesaki Municipal Hospital
1999

Gunma University
1991

Chronic subdural hematoma (CSDH) is generally treated by twist drill, and one two burr-hole craniostomy. We proposed new classification of the intraoperative condition CSDH, present a safer technique for aspiration CSDH in surgery. The was classified according to connections between cavity extracranial space as follows. "closed condition" represents only single route consisting tube inserted intraoperatively connecting cavity. "open includes another or space, which can freely pass air,...

10.2176/nmc.53.273 article EN cc-by-nc-nd Neurologia medico-chirurgica 2013-01-01

We aimed to clarify the relationship between apolipoprotein C3 (apo-C3) and vascular composition of lesion plaque in stable coronary disease (SCD) before percutaneous intervention (PCI), investigate major adverse cardiovascular events (MACEs) within 4 years. Data 98 consecutive patients with SCD who underwent PCI November 1, 2012, March 10, 2015, were analyzed. Laboratory virtual histology-intravascular ultrasound (VH-IVUS) examinations culprit lesions conducted PCI. Patients divided...

10.1038/s41598-022-18914-1 article EN cc-by Scientific Reports 2022-08-25

透析に導入されてから13年を経過した63歳女性に,鎖骨下動脈スチール症候群(subclavian steal syndrome(SSS))の発症がみられた.患者は50歳のときに,糖尿病を合併するIgA腎症を原病とする腎不全に対して,左前腕定型的標準的内シャントを設置して血液透析を始めた.約10年を経過したころからめまいの散発をみるようになり,検索を受けた脳神経外科で,左椎骨動脈の逆流現象が認められた時点で,subclavian phenomenon(SSP)と診断され,経過観察を指示されていた.13年を経過した2008年初めから,めまい,吐き気が頻発し,再び脳神経外科で検索を受けSSSと診断された.内シャントの影響を考慮に加えることにより高流量化した前腕の内シャントが,鎖骨下動脈の血流速度を亢進するとともに,鎖骨下動脈の血圧を低下することになり,椎骨動脈の逆流をきたし,椎骨脳底動脈血流不全(verteblobasilar...

10.4009/jsdt.42.529 article JA Nihon Toseki Igakkai Zasshi 2009-01-01

Oral ferric citrate hydrate (FCH) is effective for iron deficiency in hemodialysis patients.; however, it remains unclear how balance the body affects absorption from intestinal tract. This prospective, observational study (Riona-Oral Iron Absorption Trial, R-OIAT, UMIN 000031406), conducted at 42 centers Japan, wherein 268 patients without inflammation were enrolled and treated with a fixed amount of FCH 6 months. We assessed predictive value hepcidin-25 shift between ferritin (FTN) red...

10.20944/preprints202308.1352.v1 preprint EN 2023-08-18

Oral ferric citrate hydrate (FCH) is effective for iron deficiencies in hemodialysis patients; however, how balance the body affects absorption intestinal tract remains unclear. This prospective observational study (Riona-Oral Iron Absorption Trial, R-OIAT, UMIN 000031406) was conducted at 42 centers Japan, wherein 268 patients without inflammation were enrolled and treated with a fixed amount of FCH 6 months. We assessed predictive value hepcidin-25 shift between ferritin (FTN) red blood...

10.3390/ijms241813779 article EN International Journal of Molecular Sciences 2023-09-07

症例は61歳の女性. IgA腎症による慢性腎不全で血液透析を施行している. 急性出血性胆囊炎に対する胆囊摘出術後の経過中に下血を認め, ダイナミックCTで急性小腸出血と診断した. 腹部血管造影では上腸間膜動脈根部が硬化, 狭窄しているため造影に用いた4-Frコブラカテーテルを十分に挿入できなかった. 小腸に造影剤の漏出像を認めた. コブラカテーテルの内腔を通して2.8-Frマイクロカテーテルを進め直動脈の選択的塞栓術を試みたが, マイクロカテーテルが出血点に近接するとコブラカテーテルが上腸間膜動脈から逸脱しマイクロカテーテルも後退するため可及的選択的位置から多孔性ゼラチン粒を用いて塞栓した. 術後は再出血や腸管虚血をきたすことなく経過し退院した. 動脈硬化が原因で腹部血管造影や動脈塞栓術における手技に制約を伴ったが, 透析患者に生じた急性小腸出血を的確に診断し適切に止血することができた.

10.4009/jsdt.48.729 article EN Nihon Toseki Igakkai Zasshi 2015-01-01

A case of left carotid-ophthalmic aneurysm with recurrent epistaxis in a 37-year-old female is presented. As the was partially cavernous sinus, clipping aneurysmal neck impossible. Selverstone clamp applied to internal carotid artery at neck. contralateral symmetrical smaller size also demonstrated, which followed-up. The patient has since had normal life, without nasal bleeding, for more than 2 years.

10.2974/kmj1951.41.495 article EN Kitakantou igaku/Kitakantō Igaku 1991-01-01

Abstract For see ChemInform in Full Text.

10.1002/chin.200431078 article EN ChemInform 2004-07-08

Abstract We aimed to clarify the relationship between apolipoprotein C3 (apo-C3) and vascular composition of lesion plaque in stable coronary disease (SCD) before percutaneous intervention (PCI) investigate major adverse cardiovascular events (MACEs) within 4 years. Data 98 consecutive patients with SCD who underwent PCI November 1, 2012, March 10, 2015, were analyzed. Laboratory evaluation virtual histology-intravascular ultrasound (VH-IVUS) examination culprit lesions conducted PCI....

10.21203/rs.3.rs-1202085/v1 preprint EN cc-by Research Square (Research Square) 2022-01-03

Spontaneous intracranial hypotension (SIH) は慢性硬膜下血腫を伴うことがあり, 注意を要する.症例は44歳女性で壁を拭く作業中, 突然背部に激痛が生じ続いて後頭部に強い頭痛が出現, その後起立性頭痛が存続した.頭部CTで, 脳幹周囲髄液槽と両側のシルビウス裂が不明瞭.髄液は初圧20mm H2O, 軽度キサントクロミーを呈した為, クモ膜下出血が疑われたが, 脳血管写にて異常はなかった.頭部MRIにて両側硬膜下腔にT2WIにて高信号域を認めた.SIHに合併した慢性硬膜下血腫に対する穿頭血腫除去手術は, 低髄液圧が基盤にある為, 術後の血腫再貯留が多く報告されている.本症例では, 来院時より約1カ月間の臥床の後手術を行い, 再発なく治癒した.頭痛のみの症例では, 安静臥床の後, 低髄液圧状態が改善してから穿頭手術を行うことで硬膜下血腫の再発を予防出来る可能性がある.

10.2974/kmj.49.455 article EN The Kitakanto Medical Journal 1999-01-01
Coming Soon ...