Shuji Morikawa

ORCID: 0000-0003-3051-2624
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About
Contact & Profiles
Research Areas
  • Cardiac pacing and defibrillation studies
  • Cardiac Arrhythmias and Treatments
  • Cardiac electrophysiology and arrhythmias
  • Cardiovascular Function and Risk Factors
  • Cardiac Imaging and Diagnostics
  • Cardiac Structural Anomalies and Repair
  • Acute Kidney Injury Research
  • Cardiac, Anesthesia and Surgical Outcomes
  • Polynomial and algebraic computation
  • Algebraic Geometry and Number Theory
  • Chronic Kidney Disease and Diabetes
  • Heart Failure Treatment and Management
  • Vascular anomalies and interventions
  • Cardiac Valve Diseases and Treatments
  • Renal and Vascular Pathologies
  • Venous Thromboembolism Diagnosis and Management
  • Intramuscular injections and effects
  • Occupational exposure and asthma
  • Cardiac tumors and thrombi
  • Pulmonary Hypertension Research and Treatments
  • Heparin-Induced Thrombocytopenia and Thrombosis
  • Aortic Disease and Treatment Approaches
  • Cardiovascular Issues in Pregnancy
  • Indoor Air Quality and Microbial Exposure
  • Inflammatory Biomarkers in Disease Prognosis

Nagoya University
2010-2025

Mie Chuo Medical Center
2019-2025

Fukuyama City Hospital
2012

Ogaki Municipal Hospital
2007-2009

Hamamatsu University School of Medicine
2000

Abstract Background The diagnosis of ischemic non-obstructive coronary artery disease is crucial for the differential chest pain. However, pathophysiology pain and evaluation microcirculation in patients with right ventricular pacing (RVP) have not been sufficiently reported. Case Summary patient was a 53-year-old woman who underwent dual-chamber pacemaker implantation because sinus node dysfunction. She experienced before implantation; however, frequency severity her increased after...

10.1093/ehjcr/ytaf022 article EN cc-by European Heart Journal - Case Reports 2025-01-21

The pullback pressure from the left renal vein (LRV) to inferior vena cava was studied in 16 patients with bleeding of unknown origin (group A), 15 hematuria miscellaneous laterality B), and nine control subjects C). mean gradients were 5.0 +/- 2.0 mm Hg (mean SD) group A, 1.9 1.0 B, 1.1 0.9 C. gradient A significantly higher than that groups B C (P less .001). From results studies, we regarded greater or equal 3.0 as indicative LRV hypertension. With this criterion, 88% (14 16) had...

10.1148/radiology.160.3.3737903 article EN Radiology 1986-09-01

Immune-inflammatory processes are highly associated with the progression of atherosclerosis. The systemic immune-inflammation index (SII) is a potential predictor for clinical outcomes in patients stroke and ischemic heart disease. Therefore, this study aimed to investigate whether SII can accurately predict short- long-term prognoses who underwent carotid artery stenting (CAS) compared that C-reactive protein (CRP).This was single-center retrospective investigation. Overall, 129 CAS were...

10.1371/journal.pone.0288564 article EN cc-by PLoS ONE 2023-07-13

A 45-year-old Japanese man with paroxysmal atrial fibrillation (AF) developed acute anteroseptal myocardial infarction (MI). He had used 1% topical minoxidil (RiUP) once a day for 4 months before the onset of MI treatment baldness. Coronary angiography demonstrated severe stenosis at proximal portion left anterior descending coronary artery tilling defect. Electrocardiographic monitoring revealed AF and sinus bradycardia arrests, suggestive sick syndrome. Topical is now widely male pattern...

10.1536/jhj.41.519 article EN Japanese Heart Journal 2000-01-01

We know well difference Picard-Vessiot theory, Galois theory of linear equations. propose a general equations that generalizes theory. For every field extension characteristic 0, we attach its group, which is group coordinate transformation.

10.5802/aif.2505 article EN Annales de l’institut Fourier 2009-01-01

Background The fibrosis-4 (FIB-4) index has attracted attention as a predictive factor for cardiovascular events and mortality in patients with heart disease. However, its clinical value implanted pacemakers remains unclear. Methods This study included who underwent pacemaker implantation. FIB-4 was calculated based on blood tests performed during the procedure. primary outcome all-cause mortality, secondary outcomes death, non-cardiovascular major adverse (MACE; composite of failure...

10.1371/journal.pone.0294221 article EN cc-by PLoS ONE 2024-02-05

Abstract Background Cardiovascular events are increasing in patients with supranormal left ventricular ejection fraction (snLVEF). However, the effect of snLVEF aortic stenosis (AS) remains unclear, especially moderate AS. Hypothesis This study aimed to evaluate prognosis mortality and heart failure (HF) LVEF ≥ 50% or severe Methods retrospective targeted AS > 50%. 50%–65% was classified as normal (nLVEF, nEF group) >65% (snEF group). severity stratified based on valve area into...

10.1002/clc.24255 article EN cc-by Clinical Cardiology 2024-03-01

Many studies have reported a relationship between various lipids, such as cholesterol, fatty acids, and lipoproteins, cardiovascular events. Low-density lipoprotein cholesterol (LDL-C) is often cited representative marker. However, there still room for discussion regarding which markers, among other should take clinical precedence.This observational study focused on patients without residual stenosis post-coronary angiography. It was based blood tests, including lipid profiles at that time,...

10.1536/ihj.24-149 article EN International Heart Journal 2024-01-01

Background:This study compared the myocardial performance of infants born to mothers with gestational diabetes mellitus (IGDM) and without GDM (controls) under new definitions.

10.1253/circrep.cr-19-0062 article EN Circulation Reports 2019-08-27

We apply the General Galois Theory of difference equations introduced in first part to concrete examples. The allows us define a discrete dynamical system being infinitesimally solvable, which is finer notion than integrable. determine all solvable systems on compact Riemann surfaces.

10.5802/aif.2506 article EN Annales de l’institut Fourier 2009-01-01

Cases of painful left bundle branch block syndrome have been reported; however, the pathophysiology chest pain remains unclear. Here, we report a patient with and pain. We evaluated coronary microvascular dysfunction using guide wire-based thermodilution. (Level Difficulty: Intermediate.).

10.1016/j.jaccas.2023.102008 article EN cc-by-nc-nd JACC Case Reports 2023-08-26

Acute aortic dissection is associated with high mortality and increased risk of complications. exacerbations have a relatively frequency; however, the contributing factors are unclear. Blood pressure (BP) heart rate control important factors, but ideal BP strategy to prevent acute under invasive arterial monitoring remains Therefore, in this study, we aimed determine relationship between effects exacerbation dissection.This single-centre, retrospective, case-control study included 104...

10.1097/mbp.0000000000000647 article EN Blood Pressure Monitoring 2023-04-12

Abstract Introduction The Mt. FUJI multicenter trial demonstrated that a delivery catheter system had higher rate of successful right ventricular (RV) lead deployment on the RV septum (RVS) than conventional stylet system. In this subanalysis trial, we assessed differences in electrocardiogram (ECG) parameters during pacing between and their associations with tip positions. Methods Among 70 patients enrolled Mt ECG parameters, positions, depth inside by computed tomography were compared...

10.1111/jce.16226 article EN Journal of Cardiovascular Electrophysiology 2024-02-26

Abstract Background The Mt FUJI study was a multicenter, prospective, randomized, single‐blind, controlled trial comparing delivery catheter‐based and stylet‐based right ventricular (RV) lead placement at the RV septum. This extended follow‐up duration to 1 year after implantation. Methods Seventy patients with pacemaker indications for atrioventricular block were randomly assigned catheter stylet groups. We compared mid‐term efficacy safety between two groups primary outcome change in left...

10.1002/joa3.13034 article EN cc-by-nc Journal of Arrhythmia 2024-04-06

ABSTRACT Introduction The VDD‐leadless pacemaker aims to maintain high atrioventricular (AV) synchrony, but proper sensing setup is crucial. Methods and Results This case was an elderly woman with AV block who received a dual‐chamber pacemaker. Due ventricular pacing failure, Micra AV2 implanted. However, postimplantation, sinus rate, frequent premature contractions were noted. Therefore, the auto + A3 threshold function used in atrial‐sensing setup. A few days later, MAM test confirmed good...

10.1111/pace.15119 article EN Pacing and Clinical Electrophysiology 2024-12-10

Abstract An 87‐year‐old woman with complete atrioventricular block was admitted for permanent pacemaker implantation. The patient had a large thoracic aortic aneurysm that been conservatively treated. Lead placement not possible via the superior vena cava or epicardial route because of aneurysm. Therefore, we implanted VVI femoral approach. A unit placed in pouch on right lower abdominal wall, and lead introduced into ventricle vein. vein approach is rarely used; however, it should be...

10.1016/j.joa.2012.02.011 article EN cc-by-nc-nd Journal of Arrhythmia 2012-02-01
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