Kazuma Okamoto

ORCID: 0000-0003-0377-2287
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About
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Research Areas
  • Cardiac Valve Diseases and Treatments
  • Gastric Cancer Management and Outcomes
  • Metastasis and carcinoma case studies
  • Cardiac Structural Anomalies and Repair
  • Aortic Disease and Treatment Approaches
  • Gastrointestinal Tumor Research and Treatment
  • Infective Endocarditis Diagnosis and Management
  • Cardiac and Coronary Surgery Techniques
  • Esophageal Cancer Research and Treatment
  • Pancreatic and Hepatic Oncology Research
  • Aortic aneurysm repair treatments
  • Tissue Engineering and Regenerative Medicine
  • Monoclonal and Polyclonal Antibodies Research
  • Esophageal and GI Pathology
  • HER2/EGFR in Cancer Research
  • Mesenchymal stem cell research
  • Electrospun Nanofibers in Biomedical Applications
  • Congenital Heart Disease Studies
  • Tracheal and airway disorders
  • Mechanical Circulatory Support Devices
  • Infectious Aortic and Vascular Conditions
  • Neuroendocrine Tumor Research Advances
  • Cancer Diagnosis and Treatment
  • Renal cell carcinoma treatment
  • Cardiac tumors and thrombi

Kindai University
2021-2024

The Japanese Society of Gastroenterological Surgery
2024

Kindai University Hospital
2024

Akashi Medical Center
2018-2021

Center for Special Minimally Invasive and Robotic Surgery
2019

Keio University
2007-2018

Keio University Hospital
2010-2017

Kyoto Prefectural University of Medicine
1995-2017

Health and Human Development (2HD) Research Network
2010

National Center For Child Health and Development
2007

One of the final treatments for end-stage heart failure is transplantation. However, a shortage donor hearts has created long waiting list and limited benefits. Our ultimate goal to create whole beating fabricated on an organ scaffold human Here, we successfully performed first transplantation using decellularized porcine with mesenchymal stem cells. A was harvested following cardiac arrest induced by high-potassium solution stored at −80°C 24 h. The completely 1% sodium dodecyl sulphate...

10.1093/icvts/ivw022 article EN Interactive Cardiovascular and Thoracic Surgery 2016-02-21

We tested the cardiomyogenic potential of human umbilical cord blood-derived mesenchymal stem cells (UCBMSCs). Both number and function may be depressed in senile patients with severe coronary risk factors. Therefore, obtained from such not well. For this reason, UCBMSCs are potentially a new cell source for cell-based therapy, since can younger populations being routinely utilized clinical patients. The (5 x 10(3) per cm(2)) were cocultured fetal murine cardiomyocytes ([CM] 1 10(5) cm(2))....

10.1634/stemcells.2006-0662 article EN Stem Cells 2007-05-10

Abstract This article reports the results of 16th National Survey conducted by Japan Society for Endoscopic Surgery (JSES) 2020 and 2021. Laparoscopic cholecystectomy was first introduced to in 1990 has rapidly become popular because its minimally invasive nature. Since then, number objective organs indications laparoscopic surgery have gradually expanded. In 2021, 290 787 patients underwent endoscopic all surgical domains. Of these, 124 614, 110 757, 23 156, 21 771, 6543, 2614, 535, 465,...

10.1111/ases.13285 article EN Asian Journal of Endoscopic Surgery 2024-02-06

Abstract A method to measure the electrical resistivity of materials using magnetic- force microscopy (MFM) is discussed, where MFM detects magnetic field caused by tip-oscillation-induced eddy current. To achieve high sensitivity, a cantilever oscillation frequency preferable, because it induces large currents in material. Higher-order resonance modes lead higher frequency. discuss such high-order-mode oscillation, differential equation governing high-order mode formulated, and an...

10.35848/1347-4065/adbfa0 article EN Japanese Journal of Applied Physics 2025-03-12

We evaluated the operative and long-term outcomes of various approaches for aortic arch repair.A total 436 consecutive patients who underwent repair from January 2001 to March 2016 in our centre were evaluated. Of these, 276 conventional replacement (TAR), 118 thoracic endovascular (TEVAR). The remaining 42 staged (STEVAR). A 72 TEVAR group matched open surgery including TAR or STEVAR by using propensity score analysis.Surgical showed shorter ICU hospital stay ( P < 0.001 0.001,...

10.1093/ejcts/ezx028 article EN European Journal of Cardio-Thoracic Surgery 2017-01-30

Abstract Media with high concentrations of serum are commonly used to induce cardiomyogenic transdifferentiation in mesenchymal stem cells; however, contains numerous unknown growth factors and interferes definition specific secreted from feeder cells. In the present study, we determined whether human cells can be observed a FBS‐free medium. The efficiency was 10% FBS‐containing standard medium (10%FBS) containing insulin thyroxin (FBS‐free). uterine endometrium‐derived (EMC100, EMC214)...

10.1111/j.1525-1594.2009.00859.x article EN Artificial Organs 2010-04-01

Minimally invasive mitral valve surgery (MIMVS) has become a standard technique to perform in many cardiac centers. However, there remains question regarding when MIMVS should not be performed due an increased surgical risk. Consequently, expert surgeons were surveyed their opinions on patient factors, pathology and skills MIMVS.Surgeons experienced identified through electronic search of the literature. A link online survey platform was sent all surgeons, as well two follow-up reminders....

10.3978/j.issn.2225-319x.2013.11.11 article EN PubMed 2013-11-01

Background:Percutaneous closure has replaced surgery for the majority of cases secundum atrial septal defect (ASD). However, technological advances have made contemporary minimally invasive cardiac (MICS) less than conventional surgery. The aim this study was to compare clinical outcomes percutaneous ASD with those MICS.

10.1253/circj.cj-16-0904 article EN Circulation Journal 2017-01-01

10.1016/j.athoracsur.2011.11.066 article EN The Annals of Thoracic Surgery 2012-03-24

The efficacy and safety of rigid pericardial endoscopy as the promising minimally invasive approach to space was evaluated. Techniques for cell transplantation, epicardial pacemaker lead implantation, ablation were developed.Two swine 5 canines studied evaluate endoscopy. After a double pericardiocentesis, transurethral endoscope inserted into space. technique obtain clear visual field examined, acute complications such hemodynamic changes effects on intra-pericardial pressure Using...

10.1186/1749-8090-7-117 article EN cc-by Journal of Cardiothoracic Surgery 2012-11-09
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