Ryo Ninomiya

ORCID: 0000-0003-1811-8501
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About
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Research Areas
  • Cardiac Valve Diseases and Treatments
  • Cardiac Imaging and Diagnostics
  • Cardiovascular Function and Risk Factors
  • Infective Endocarditis Diagnosis and Management
  • Cardiac Structural Anomalies and Repair
  • Antiplatelet Therapy and Cardiovascular Diseases
  • Coronary Interventions and Diagnostics
  • Coronary Artery Anomalies
  • Cardiac pacing and defibrillation studies
  • Acute Myocardial Infarction Research
  • Cardiac Arrhythmias and Treatments
  • Aortic Disease and Treatment Approaches
  • Peripheral Artery Disease Management
  • Lipoproteins and Cardiovascular Health
  • Cardiac electrophysiology and arrhythmias
  • Metal Forming Simulation Techniques
  • Botulinum Toxin and Related Neurological Disorders
  • Radiation Dose and Imaging
  • Advanced X-ray and CT Imaging
  • Intestinal Malrotation and Obstruction Disorders
  • Heart Failure Treatment and Management
  • Cardiac Arrest and Resuscitation
  • Salivary Gland Tumors Diagnosis and Treatment
  • Connective tissue disorders research
  • Viral Infections and Immunology Research

Iwate Medical University
2017-2025

Iwate Prefectural Central Hospital
2024-2025

National Center For Child Health and Development
2020

Kameda Medical Center
2013-2016

Osaka University
2011

Background: The safety and feasibility of using 1-month dual antiplatelet therapy (DAPT) followed by P2Y12inhibitor monotherapy for patients after percutaneous coronary intervention (PCI) with thin-strut biodegradable polymer drug-eluting stents (BP-DES) in daily clinical practice remain uncertain.

10.1253/circj.cj-24-0091 article EN Circulation Journal 2024-04-03

Background: The association between symptom interpretation and prognosis has not been investigated well among patients with acute coronary syndrome (ACS). As such, the present study evaluated effect of heart disease awareness ACS on in-hospital mortality.

10.1253/circj.cj-24-0113 article EN Circulation Journal 2024-06-14

Abstract Aims Given that fulminant myocarditis, characterized by unstable haemodynamics, is a significant clinical challenge and traditional pharmacological treatments have limitations, evaluating alternatives such as the Impella device crucial focus of this study. Further, study presents pioneering large-scale registry data on its use in managing myocarditis. Methods results Data from Japanese Registry for Percutaneous Ventricular Assist Devices (J-PVAD) were analysed to assess Impella’s...

10.1093/ehjacc/zuad149 article EN European Heart Journal Acute Cardiovascular Care 2023-12-04

Transcatheter aortic valve (TAV)-in-TAV is an attractive treatment for degenerated TAV. The risk of coronary artery occlusion due to sequestration the sinus Valsalva (SOV) in TAV-in-TAV has been reported, but Japanese patients unknown. This study aimed investigate proportion who are expected experience difficulty with second TAV implantation (TAVI) and evaluate possibility reducing occlusion.

10.1253/circrep.cr-23-0039 article EN Circulation Reports 2023-04-25

Left ventricular (LV) remodeling with aortic stenosis (AS) appears to differ according sex, but reverse after transcatheter valve implantation (TAVI) has not been elucidated in a Japanese population. This study aims determine whether any sex-related differences LV or TAVI exist the context of severe AS.Of 208 patients who received for AS our institution, 100 (men, 42; mean age, 83.0 ± 4.9 years) underwent transthoracic echocardiography before and 3 months TAVI. Despite similar valvular...

10.1536/ihj.20-154 article EN International Heart Journal 2020-09-11

Rapid ventricular pacing (RVP) is commonly employed during transcatheter aortic valve replacement (TAVR); however, frequent TAVR associated with worse prognoses. The retrograde INOUE-BALLOON® (IB) allows balloon valvuloplasty (BAV) without RVP. aim of this study was to evaluate the feasibility IB for preparation. population included 178 consecutive patients (mean age, 84 ± 5 years; male, 47%) who underwent BAV before prosthetic via transfemoral approach. Patients were divided into a group...

10.1007/s12928-021-00789-0 article EN cc-by Cardiovascular Intervention and Therapeutics 2021-06-10

Objective We aimed to reveal detailed on-treatment lipid profiles, lipid-related surrogate markers, and factors predicting failure achieve the guideline-recommended management goal following statin treatment in Japanese patients with acute myocardial infarction (AMI). Methods Sixty AMI who underwent coronary intervention had received rosuvastatin 10 mg/day since start of their hospitalization were assessed for including high-sensitivity C-reactive protein, small dense low-density lipoprotein...

10.2169/internalmedicine.3476-24 article EN Internal Medicine 2024-03-17

Abstract Background While early de-escalation of dual antiplatelet therapy (DAPT) and P2Y12 inhibitor monotherapy following short DAPT are becoming standard treatments for patients after percutaneous coronary intervention (PCI), the impact procedural patient-related risks on clinical outcomes PCI receiving above regimen has never been established. Purpose To evaluate risk factors 1-year cardiovascular bleeding in with 1-month followed by biodegradable-polymer drug-eluting stent (BP-DES)...

10.1093/eurheartj/ehae666.1435 article EN European Heart Journal 2024-10-01

Abstract Background Although transthoracic echocardiography (TTE) is the gold standard for evaluating effective valve orifice area (EOA) after transcatheter aortic implantation (TAVI), continuous formula inherently different from anatomic because it implies a minimum jet width through valve. It has also been reported that doppler method with TTE overestimates mean gradient due to pressure recovery and even less accurate TAVI. On other hand, recent technological developments have improved...

10.1093/eurheartj/ehae666.1887 article EN European Heart Journal 2024-10-01

Abstract Background Sapien 3 Ultra Resilia (S3UR) is the latest balloon-expandable valve for transcatheter aortic replacement (TAVR). Compared to (S3), previous model of valve, leaflets are modified anti-calcification tissue and outer skirt becomes 40% higher with textured polyethylene terephthalate. However, it unknown how these structural changes affect echocardiographic serum parameters after TAVR. Purpose To compare impacts design on relevant between S3UR S3 in short term. Methods...

10.1093/eurheartj/ehae666.1838 article EN European Heart Journal 2024-10-01

1288 Non-coronary cardiac interventions, other / Determinants of long-term post-PCI outcomes catheterization laboratories in Rochester Minnesota between 2002 and 2016 were retrieved reviewed.Results: TCB ICM to establish histopathologic diagnosis was performed 29 patients.55% patients female mean age at procedure 59±18 years.Masses located the right atrium ventricle 93% cases.Echo guidance used 100% procedures.Ventricular arrhythmias requiring immediate cardioversion occurred 7% patients.No...

10.1093/eurheartj/ehx493.p6107 article EN European Heart Journal 2017-08-01

Acute coronary syndrome (ACS) can develop in patients with mildly to moderately stenotic lesions. However, the angiographic characteristics of lesions who will later ACS have not been systematically investigated. For this reason, we examined earlier findings such a retrospective study.The study population consisted 45 consecutive and stable angina (SA) require revascularization. All them had received cardiac catheterization within 5 years prior onset, for different reasons. The detailed...

10.1536/ihj.19-601 article EN International Heart Journal 2020-04-28

Abstract Background Although rapid ventricular pacing (RVP) is commonly performed for preparation of transcatheter aortic valve implantation (TAVI). It has been reported that multiple and / or prolonged RVP associated with adverse clinical outcomes TAVI. Retrograde Inoue-Balloon was designed balloon valvuloplasty (BAV) without to prevent slip by way central waist during biphasic inflation. Purpose The purpose this study evaluate safety feasibility TAVI preparation. Methods From December 2013...

10.1093/ehjci/ehaa946.1964 article EN European Heart Journal 2020-11-01

10.1007/s12928-021-00811-5 article EN Cardiovascular Intervention and Therapeutics 2021-09-15
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