Information about the doctor

Professor, Doctor of Medicine Karl-Axel Hartmann, a leading specialist in radiation therapy is in the top list of the best German doctors following the annual survey of public and journalistic magazine “FOCUS”.
Professor, Doctor of Medical Sciences
Head of the Department of Radiation Therapy and Radiation Oncology
Recognized as one of Germany’s Best Doctors in “Radiation Therapy” by Focus magazine (2025)
Professional Memberships
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Chair of the German Society for Radiation Oncology
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Active member of the European Society for Therapeutic Radiology and Oncology (ESTRO)
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Member of the American Society for Therapeutic Radiology and Oncology (ASTRO)
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Member of the German Society for Radio-Oncology
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Member of the Professional Association of German Radiation Therapy Specialists
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Member of the German Cancer Society
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Head of the Radiation Safety Compliance Department at the North Rhine Medical Chamber
Scientific Awards and Key Research Projects
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AGA HBO Award (1999)
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Hans Langendorff Award (2001) for the study “Gene therapy using a dominant-negative mutant of EGFR increases radiosensitivity in glioblastoma and breast cancer”
(Co-authors: G. Lammering, T. Hewit, W. Hawkins, K. Valerie, P.S. Lin, G. Schmitt, R. Schmidt-Ullrich) -
Theragnostic MedTech Poster Award (2001) for the research “Remission rates and outcomes of breast-conserving treatment: preoperative chemotherapy versus combined chemoradiotherapy”
(Co-authors: B. Gerlach, R. Rohn, G. Schmitt, P. Dimmerling, W. Audretsch, F. Gogolin, T. Königshausen, R. Willers) -
Dr. Mildred Scheel Foundation Grants for Oncology Research:
1996–1998, Amsterdam: “Studies on tumor oxygenation in R1H rat rhabdomyosarcoma”
2000–2001, Amsterdam: “Studies on human glioma cell lines: genetic alterations and sensitivity to chemo-/radiotherapy” -
2001 Funding of a research assistant at the Hyperbaric Oxygenation Center, University of Düsseldorf (initiated by the Parents’ Association of the Pediatric Oncology Clinic)
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Joint Research Funding with the Interdisciplinary Mammology Center, Düsseldorf Hospital (Gerresheim) for the study:
“Prospective randomized multifactorial trial on optimizing therapy with Paclitaxel and Epirubicin in patients with primarily anatomically and/or oncologically partially or completely inoperable breast cancer.”
Participation in Congresses and Conferences
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7th German Congress for Radio-Oncology, Radiobiology, and Medical Physics, Hamburg
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23rd International Congress of the International Association for Breast Cancer Research, Düsseldorf
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5th German Congress for Radio-Oncology, Radiobiology, and Medical Physics, Karlsruhe
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“Hyperbaric Oxygenation in Radiation Therapy: The Role of Respiratory Hyperoxia”, Düsseldorf