Profile Details

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Hire Tomohisa T.

Japan

USD 15 /hr

Published Researcher | CPB & Cardiac Surgery Specialist | Scientific Writing, Editing & Peer-Review Support

Profile Summary

I am a clinical perfusionist with over 10 years of experience in cardiopulmonary bypass (CPB) management for cardiac surgery, including high-risk and complex cases. I specialize in extracorporeal circulation, hemodynamic optimization, and organ protection strategies during cardiac procedures. I am also a published medical researcher with multiple English-language publications, including first-author papers and a randomized controlled trial. My work has been recognized with both an Original Article Award and a Case Report Award from a peer-reviewed journal, reflecting the quality and impact of my research. My research interests include cardiopulmonary bypass strategies, acute kidney injury (AKI), perfusion management, and systemic hyperkalemia techniques. In addition to my clinical and research background, I have international experience in both clinical support and academic activities. I participated in cardiac surgery support and perfusion training in Zambia, where I gained firsthand insight into the realities and challenges of healthcare in resource-limited settings. I have also delivered multiple presentations in English at international conferences, including in Australia and Istanbul. I provide high-quality scientific and medical writing services, including manuscript editing, abstract and discussion development, and journal submission support. I have extensive experience assisting non-native English researchers in improving clarity, structure, and academic tone to meet the standards of leading international journals. What differentiates me is the combination of advanced clinical expertise, global perspective, and strong academic writing skills. I bring practical, real-world insight into cardiac surgery and perfusion, ensuring both scientific accuracy and clinical relevance in every project. I am committed to delivering precise, well-structured, and publication-ready work within deadlines. I value clear communication and long-term collaboration with researchers, clinicians, and organizations worldwide.

Subject Matter Expertise

• ☆ Medical Devices
• ☆ Medical Device Development
• ☆ Clinical Trials
• ☆ Clinical Trial Design
• ☆ Patient Recruitment
• ☆ Clinical Data Management
• ☆ Clinical Trial Site Selection & Monitoring
• ☆ Clinical Trials Data Analysis
• ☆ Anesthesiology
• ☆ Medical Imaging/Radiology
• ☆ Interventional Radiology
• ☆ Primary Care/Family Medicine
• ☆ Cardiovascular Disease
• ☆ Vascular Medicine
• ☆ Pacemakers
• ☆ Clinical Cardiac Electrophysiology
• ☆ Interventional Cardiology
• ☆ Cardiovascular Disease Management
• ☆ Pediatric Cardiology
• ☆ Clinical Laboratory Science
• ☆ Anatomic Pathology
• ☆ Clinical Pathology
• ☆ Molecular Pathology
• ☆ Neuropathology
• ☆ Cytopathology & Histopathology
• ☆ Clinical Biochemistry
• ☆ Clinical Physiology
• ☆ Hospice & Palliative Medicine
• ☆ Pain Management
• ☆ Cardiac Surgery
• ☆ Dietetics
• ☆ Nursing
• ☆ Critical Care Nursing
• ☆ Nursing Administration & Management
• ☆ Nursing Education
• ☆ Anesthesia Nursing
• ☆ Cardiac Nursing
• ☆ Medical X-Ray
• ☆ Endoscopy
• ☆ Electrocardiogram (ECG)
• ☆ Echocardiography
• ☆ Computed Tomography (CT)
• ☆ Mammography
• ☆ Positron Emission Tomography (PET)
• ☆ Ultrasound
• ☆ Fluoroscopy
• ☆ Traditional Medicine
• ☆ Intensive Care Medicine
• ☆ Regulatory Affairs
• ☆ Cytopathology
• ☆ Trauma Surgery
• ☆ Vascular Surgery
• ☆ Medical Terminology
• ☆ Inflammation
• ☆ Medical Equipment & Supplies

Services

• Writing
• Research
• Consulting
• Data & AI
• Product Development

Writing Clinical Trial Documentation, Medical Writing, Non-Medical Regulatory Writing, Technical Writing, Business & Legal Writing, Copywriting, Creative Writing

Research Market Research, User Research, Meta-Research, Feasibility Study, Technology Scouting, Fact Checking, Gap Analysis, Gray Literature Search

Consulting Business Strategy Consulting, Go-to-Market Strategy Consulting, Digital Strategy Consulting, Healthcare Consulting, Legal Consulting, Operations Consulting

Data & AI Predictive Modeling, Statistical Analysis, Image Processing, Image Analysis, Algorithm Design-Non ML, Algorithm Design-ML, Data Visualization

Product Development Stability/Shelf Life Testing, Product Evaluation, Material Sourcing, Product Validation, Manufacturing

Work Experience

Perfusionist

Sakakibara Heart Institute of Okayama

April 2014 - March 2020

Education

Master of Science in Extracorporeal Science (MS-ECS)

Medical University of South Carolina (MUSC)

August 2025 - Present

Certifications

• Clinical engineering technician license

  Issued by the Minister of Health, Labour and Welfare, Japan

  April 2014 - Present

Publications

JOURNAL ARTICLE

Tomohisa Takeichi, Yoshihisa Morimoto, Akitoshi Yamada, Takanori Tanaka, Kunihiro Fujiwara, Masanobu Sato, Ryo Toma, Kiyoto Mitsui, Takumi Sugita, Hiroki Yamada, et al. (2025). Continuous furosemide does not prevent cardiopulmonary bypass-related acute kidney injury in minimally invasive cardiac surgery: the randomized furosemide trial . The Journal of ExtraCorporeal Technology.

Tomohisa Takeichi, Yoshihisa Morimoto, Akitoshi Yamada, Takanori Tanaka, Kunihiro Fujiwara, Masanobu Sato, Ryo Toma, Kiyoto Mitsui, Takumi Sugita, Kunio Gan (2025). An effective case of pulsatile flow for cerebral malperfusion of stanford type A aortic dissection . The Journal of ExtraCorporeal Technology.

Tomohisa Takeichi, Yoshihisa Morimoto, Akitoshi Yamada, Takanori Tanaka, Kunihiro Fujiwara, Masanobu Sato, Ryo Toma, Kiyoto Mitsui, Takumi Sugita, Hiroki Yamada, et al. (2025). Assistance from a mixing zone model to perform aortic femoral perfusion strategy with severe atherosclerotic and artheromic aortic disease for endoscopic minimally invasive redo mitral valve repair . The Journal of ExtraCorporeal Technology.

Tomohisa Takeichi, Yoshihisa Morimoto, Akitoshi Yamada, Takanori Tanaka (2024). A technique avoiding cardioplegia delivery complications: a case using systemic hyperkalemia cardiopulmonary bypass combined with circulatory arrest . The Journal of ExtraCorporeal Technology.

Tomohisa Takeichi, Yoshihisa Morimoto, Akitoshi Yamada, Takanori Tanaka (2024). A case of the effective inhalation of nitric oxide therapy for caused severe pulmonary hypertension with protamine neutralization of systemic heparinization during totally endoscopic minimally invasive cardiac surgery . The Journal of ExtraCorporeal Technology.

Tomohisa Takeichi, Yoshihisa Morimoto, Akitoshi Yamada, Takanori Tanaka (2023). Fifth-time redo mitral valve replacement via right thoracotomy under systemic hyperkalemia cardiopulmonary bypass without aortic cross-clamp . The Journal of ExtraCorporeal Technology.