Christian Hassager

Christian Hassager is a Clinical Professor in the Department of Clinical Medicine at the University of Copenhagen's Faculty of Health and Medical Sciences, specializing in Internal Medicine with a focus on Cardiology. His research and clinical work centers on cardiovascular diseases, particularly heart failure, cardiac arrest, and resuscitation medicine. He maintains an active research profile with over 550 publications to his name.

Dr. Hassager's research interests span several critical areas in cardiology and emergency medicine. His primary focus is on heart failure management, particularly non-ischaemic heart failure with reduced ejection fraction. He has conducted significant research on the obesity paradox in heart failure patients and the role of implantable cardioverter-defibrillators. His work on cardiac arrest encompasses both out-of-hospital and in-hospital scenarios, with particular attention to resuscitation techniques, post-cardiac arrest care, and long-term outcomes. He has also contributed to research on cardiogenic shock diagnosis and management, as well as CPR training implementation in educational settings.

His recent publications (2025) demonstrate a strong focus on translational research with direct clinical applications. The research output shows consistent collaboration with major cardiac trials (DANISH, BOX, TOMAHAWK) and registry studies. His work bridges clinical cardiology, emergency medicine, and public health policy, particularly evident in his studies on mandatory CPR training in Danish schools. The research spans from basic clinical investigations to large-scale epidemiological studies and clinical trials.

Christian Hassager maintains active clinical practice alongside his academic responsibilities, as indicated by his affiliation with Region Hovedstaden (regionh.dk), the Capital Region of Denmark. His ORCID profile (0000-0002-1199-0981) documents his extensive scholarly contributions to the field of cardiology and cardiovascular medicine.