Kazuhiro Hashimoto

ORCID: 0000-0002-9667-5808
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About
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Research Areas
  • Cardiac Valve Diseases and Treatments
  • Infective Endocarditis Diagnosis and Management
  • Congenital Heart Disease Studies
  • Aortic Disease and Treatment Approaches
  • Cardiac Structural Anomalies and Repair
  • Cardiac Ischemia and Reperfusion
  • Cardiac and Coronary Surgery Techniques
  • Indoor Air Quality and Microbial Exposure
  • Tracheal and airway disorders
  • Neonatal and fetal brain pathology
  • Mechanical Circulatory Support Devices
  • Coronary Artery Anomalies
  • Plant Pathogens and Fungal Diseases
  • Cardiovascular Function and Risk Factors
  • Oral microbiology and periodontitis research
  • Vascular anomalies and interventions
  • Pulmonary Hypertension Research and Treatments
  • Cardiac Arrhythmias and Treatments
  • Nitric Oxide and Endothelin Effects
  • Congenital Diaphragmatic Hernia Studies
  • Cardiac, Anesthesia and Surgical Outcomes
  • Aortic aneurysm repair treatments
  • Atrial Fibrillation Management and Outcomes
  • Mycotoxins in Agriculture and Food
  • Cardiac Arrest and Resuscitation

Jikei University School of Medicine
2012-2021

National Sagamihara Hospital
2019

Society of Thoracic Surgeons
2015

Tohoku University
2005-2014

Nihon University
2010-2011

Azabu University
2008

Saitama Prefecture
1999-2007

Shizuoka Red Cross Hospital
2007

Jikei University Kashiwa hospital
2007

Saku Central Hospital
2007

The aim of this study was to investigate the effect timing valve surgery on clinical outcomes patients with active infective endocarditis (IE) accompanied by cerebral complications. We retrospectively analysed a cohort 568 patients, comprising 118 non-haemorrhagic infarction (CI), 54 intracranial haemorrhage (ICH) and 396 without events (C; control), who underwent for left-sided IE in 15 Japanese institutes from 2000 2011. mean age 58.4 ± 16.9 years CI group; 54.5 17.4 ICH group 56.9 16.0 C...

10.1093/ejcts/ezw035 article EN European Journal of Cardio-Thoracic Surgery 2016-03-10

The present study aimed to understand the biofilm formation mechanism of Propionibacterium acnes by analyzing components and structure biofilms. P. strains were isolated from surface explanted cardiac pacemaker devices that exhibited no clinical signs infection. Culture tests using a simple stamp culture method (pressing pacemakers against agar plates) revealed frequent colonization on devices. was 7/31 devices, isolates categorized multilocus sequence typing into five different types (STs):...

10.3389/fmicb.2018.00182 article EN cc-by Frontiers in Microbiology 2018-02-14

Culture-independent DNA sequencing of fungal internal transcribed spacer 2 (ITS2) region was compared to a culture-dependent morphological identification technique characterize house dust-borne communities. The abundant genera were Aspergillus, Wallemia, Cladosporium, and Penicillium. Statistically significant between-method correlations observed for Wallemia Cladosporium (Spearman's ρ = 0.75 0.72, respectively; p < 0.001). Penicillium tended be detected with much higher (averaged 26-times)...

10.1038/s41598-021-81996-w article EN cc-by Scientific Reports 2021-01-29

Background: The feasibility of synchrotron radiation-based phase-contrast computed tomography (PCCT) for visualization the atrioventricular (AV) conduction axis in human whole heart specimens was tested using four postmortem structurally normal newborn hearts obtained at autopsy. Methods: A PCCT imaging system beamline BL20B2 a SPring-8 radiation facility used. performed with “virtual” slicing three-dimensional reconstructed images. For histological verification, were cut into planes similar...

10.1177/2150135116675844 article EN World Journal for Pediatric and Congenital Heart Surgery 2016-11-01

Few studies have evaluated the performance of air purifiers in removing airborne fungi houses. Here, we ability a HEPA purifier fan to remove six houses Japan. In each house, number decreased more rapidly when was on (test measurement) than it off (control) , demonstrating its decrease fungal concentration. The between 1.5 and 6 times faster (spontaneous decrease) . Clean change rates, calculated from measurements taken 15 min after test equipment operation began, ranged 2.9 5.4 (h-1)...

10.4265/bio.23.215 article EN Biocontrol Science 2018-01-01

Purpose: The MR findings in patients with spastic diplegia were investigated and the role of imaging assessing extent brain injury was evaluated. Material Methods: 39 male 24 female (preterm/term 43/20) imaged using a 0.5 T system. Results: term quite different from those preterm patients; 55% showed normal minimal changes on MR, whereas 90.7% 43 children had periventricular leucomalacia. deep cerebral white matter most frequently involved site. Objective measurements revealed significant...

10.1177/02841851960373p279 article EN Acta Radiologica 1996-05-01

Objective. Periapical periodontitis is an infectious and inflammatory disease of the periapical tissues caused by oral bacteria invading root canal. In present study, profiling microbiota in infected canals was performed using anaerobic culture molecular biological techniques for bacterial identification. Methods. Informed consent obtained from all subjects (age ranges, 34-71 years). Nine with lesions 7 were included. Samples collected, followed on CDC blood agar plates. After days, colony...

10.1155/2012/609689 article EN cc-by International Journal of Dentistry 2012-01-01

Periventricular leukomalacia (PVL) is the most important factor in cerebral palsy preterm infants.In present study, we investigated 747 infants of less than 36 weeks gestation who were repeatedly examined by cranial ultrasonography and computed tomography (CT) scanning at around 40 corrected post-menstrual age. The clinical course these was followed for more 3 years they magnetic resonance imaging (MRI) between 12 18 months age.Single examinations early infancy not sufficient to diagnose...

10.1046/j.1442-200x.2001.01374.x article EN Pediatrics International 2001-06-28

Background This study was performed to identify risk factors for hospital death in patients with acute and active infective endocarditis (AAIE) after surgical intervention. Methods Results From 1980 2004, 94 underwent surgery AAIE (age range, 3-77 years; 76% males). Congestive heart failure (CHF) present 44 patients, as well vegetations 64, septicemia 16, abscesses 17, emboli 22; 16 had prosthetic valve endocarditis. Streptococci were the most common bacteria (34 patients), followed by...

10.1253/circj.cj-08-0224 article EN Circulation Journal 2008-01-01
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