Yoichiro Nakagawa

ORCID: 0000-0003-0266-6829
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About
Contact & Profiles
Research Areas
  • Atrial Fibrillation Management and Outcomes
  • Cardiac Arrhythmias and Treatments
  • Cardiomyopathy and Myosin Studies
  • Cardiac electrophysiology and arrhythmias
  • Cardiac pacing and defibrillation studies
  • Takotsubo Cardiomyopathy and Associated Phenomena
  • Heart Rate Variability and Autonomic Control
  • Traumatic Brain Injury and Neurovascular Disturbances
  • Systemic Sclerosis and Related Diseases
  • French Urban and Social Studies
  • Renal and Vascular Pathologies
  • Chalcogenide Semiconductor Thin Films
  • Parkinson's Disease and Spinal Disorders
  • Pleural and Pulmonary Diseases
  • Phase-change materials and chalcogenides
  • Pain Management and Treatment
  • Hematological disorders and diagnostics
  • French Historical and Cultural Studies
  • Emile Durkheim and Sociology
  • Intracranial Aneurysms: Treatment and Complications
  • Political and Social Issues
  • Neurosurgical Procedures and Complications
  • Glass properties and applications
  • Lysosomal Storage Disorders Research
  • Heart Failure Treatment and Management

Kanazawa University
2023-2025

Ishikawa Prefectural Central Hospital
2021-2024

Kanazawa Medical University
2023

Kanazawa Medical Center
2023

National Hospital Organization
2023

Toyama Prefectural Central Hospital
2017

Stanford University
1974

Neurological Surgery
1968

Keio University
1968

Abstract While autonomic dysregulation and repolarization abnormalities are observed in subarachnoid hemorrhage (SAH), their relationship remains unclear. We aimed to measure skin sympathetic nerve activity (SKNA), a novel method estimate stellate ganglion activity, investigate its association with electrocardiogram (ECG) alterations after SAH. recorded total of 179 SKNA data from SAH patients at three distinct phases compared them 20 controls. Compared control data, the acute phase (days...

10.14814/phy2.70202 article EN cc-by Physiological Reports 2025-01-01

Electronic transport has been investigated in ${\mathrm{As}}_{2}$(${\mathrm{Se}}_{1/3}$ ${\mathrm{Te}}_{2/3}$${)}_{3}$ and Ge(${\mathrm{Se}}_{1/3}$${\mathrm{Te}}_{2/3}$ ${)}_{2}$ amorphous semiconductors through measurements of photoconductivity, optical absorption, dark conductivity, thermoelectric power, field effect. Comparison surface volume on bulk glassy material with thin sputtered films indicates no electronically detectable difference between properties. Analysis photoconductivity...

10.1103/physrevb.9.3377 article EN Physical review. B, Solid state 1974-04-15

Pulmonary vein isolation (PVI) is an established treatment for atrial fibrillation (AF). While it known to affect the autonomic nervous system, relationship between left (LA) remodeling and PVI-mediated neuromodulation remains unclear. We aimed assess neuromodulatory effects of PVI using skin sympathetic nerve activity (SKNA). SKNA was recorded one day before 2–3 days after in 28 paroxysmal AF (PAF) 33 persistent (PerAF) groups. Baseline low frequency high (LF/HF) ratio higher PAF group...

10.3390/jcdd12040123 article EN cc-by Journal of Cardiovascular Development and Disease 2025-03-30

Anemia, a common comorbidity in older patients with heart failure (HF) and atrial fibrillation (AF), is associated an increased risk of adverse events. This study evaluated the prognostic effects longitudinal changes anemia status on clinical outcomes AF.

10.1253/circj.cj-24-0132 article EN Circulation Journal 2024-08-26

Signet-ring cell gastric carcinomas presenting as pericardial effusion early in diagnosis are rare and associated with high mortality a poor prognosis. There two interesting aspects of this case: primary carcinoma cardiac tamponade the metastatic behavior signet-ring carcinoma.

10.1002/ccr3.7522 article EN cc-by Clinical Case Reports 2023-06-01

The prognostic effect of concomitant hypertrophic cardiomyopathy (HCM) on adverse events in patients with atrial fibrillation (AF) has not been evaluated a multicenter prospective cohort study Japan.

10.1253/circj.cj-23-0418 article EN Circulation Journal 2023-10-19

The RHYTHMIA (Boston Scientific, MA, USA) mapping system was designed to provide automated with ultra-high resolution. LUMIPOINT software is used identify the arrhythmia circuit, including atrial tachycardia (AT) and ventricular tachycardia1,2.

10.1016/j.hrcr.2023.12.009 article EN cc-by-nc-nd HeartRhythm Case Reports 2023-12-15

Danon disease (DD) is a rare lysosomal storage disorder resulting from pathogenic variants of the lysosome-associated membrane protein type 2 (LAMP-2) gene. The characterized by severe cardiomyopathy, which rapidly progresses to end-stage heart failure. This case, with DD caused missense variant, exhibited slow progressive cardiomyopathy and survived for an extended period despite being male. A pathological analysis revealed that only minority samples autophagic vacuoles unique sarcolemmal...

10.2169/internalmedicine.3953-24 article EN Internal Medicine 2024-01-01

Abstract We report the case of a man in his 60s who had dilated cardiomyopathy with severe functional mitral regurgitation. Four years after cardiac resynchronization therapy (CRT) device an implantable cardioverter defibrillator was implanted, this replaced adaptive CRT because battery consumption. Seven months replacement device, left ventricular pacing to right activation and atrioventricular delay from automatic adjustments contributed less The findings our suggest that optimal CRT, by...

10.1016/j.joa.2017.04.003 article EN cc-by-nc-nd Journal of Arrhythmia 2017-04-29

The postoperative reexpansion of brain after surgery by 5 cm skull trephine in cases chronic subdural hematomas reported based on the experiences 43 cases.The course postoperatively is divided into 3 groups X-ray observation location clip which placed cortical surface.Group I rapidly short period progressively.Group II that gradually and has fluctuated during this period.Group III distance between inner surface increased followed gradual reexpansion.

10.2176/nmc.10.255b article EN Neurologia medico-chirurgica 1968-01-01

lobe.The dilatated left anterior cerebrebral artery and middle cerebral .aremajor afferent vessel then drained to the vein cortical veins which are enormously additionally small vessels directly of Galen inferior sagittal sinus.Recovery from first attack SAH was satisfactory.Case 5. A girl aged 14, who found in bed comatose state with vomitings right sided hemiplegia.5 days after brought hospital lumbar puncture revealed pint colored c.s.f.under pressure 400 mm.Angiographic study disclosed...

10.2176/nmc.10.170 article EN Neurologia medico-chirurgica 1968-01-01

Most idiopathic premature ventricular contractions (PVCs) originate from the right outflow tract, and catheter ablation is an established treatment option.1 In contrast, PVCs originating left ventricle (LV) can be difficult to treat with ablation. Idiopathic LV are frequently associated conduction systems, such as Purkinje fiber network, have been reported form a unique complex arrhythmic substrate.2

10.1016/j.hrcr.2022.09.017 article EN cc-by-nc-nd HeartRhythm Case Reports 2022-10-14
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