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Dr. Ryusuke Sumiya

General Thoracic Surgery - Surgeon

Background

I am a thoracic surgeon and postdoctoral researcher in lung transplant program in University Health Network, Canada. I obtained my Medical Degree (2017) from Juntendo University School of Medicine in Tokyo, Japan. I subsequently completed training in junior residency program (2019), senior residency program of general surgery (2022) at National Center for Global Health and Medicine in Tokyo, Japan. I also completed general thoracic surgery training at Juntendo University School of Medicine (2024), and becoming a board-certified thoracic surgeon. In 2022, I completed postgraduate training and obtained Doctor of Philosophy in Course of Advanced and Specialized Medicine at Juntendo University Graduate School of Medicine. I underwent robotic surgery training under Prof. Kenji Suzuki (Juntendo University school of medicine).

Other Interests

My research in Japan focused on the carcinogenesis of lung cancer in young patients and novel robotic surgical techniques. I transitioned to the Toronto program in September 2025.

Research

I am currently studying chronic lung allograft dysfunction (CLAD), which is the main long-term complication of lung transplantation. My research focuses on lung injury and regeneration in both human patients and animal models with CLAD.

Practice Areas

  • Cancer
  • Lung
  • Young generation

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