Milosz Jaguszewski completed his medical studies in Gdansk, Poland. In 2007 he began his training in internal medicine and cardiology with a focus on cardiac intensive care and invasive cardiology at the University Hospital of Gdansk. In 2010 he came to the University Heart Center Cardiology of the University Hospital Zurich. There he worked as an assistant physician and research fellow in two multicenter studies: Inflammation and acute coronary syndrome (ACS) - novel strategies for prevention and clinical management and Takotsubo International Registry. In 2011 he received a research grant of the European Society of Cardiology and Interventional and in 2013 the Fellowship of the European Association of Percutaneous Cardiovascular Interventions (EAPCI).
His clinical interests and research interests are in the field of pathophysiology and biomarker detection of cardiomyopathies as well as interventional cardiology with special focus on the optical coherence tomography, drug-eluting stents, bio-absorbable vascular scaffolds and PCI in ACS. From 2014-2017 he worked as clinical research assistant in the Charité cardiology department of the University of Berlin Benjamin Franklin Campus. Since 2017 he is attending physician at the cardiac catheterization  laboratory of the university of medicine in Gdansk, Poland.