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About

Jos G. Maessen is a pioneering cardiothoracic surgeon whose research has significantly advanced minimally invasive and robotic surgical techniques, with particular expertise in thymectomy, cardiac ablation, and surgical innovation. Based at Maastricht University Medical Center+, a nationally designated Dutch center of excellence for thymoma treatment, Maessen has built an internationally recognized body of work spanning two decades. His most influential contributions center on robotic thymectomy for both thymoma and myasthenia gravis, with landmark multi-institutional European studies demonstrating the oncological efficacy and neurological safety of robotic approaches — work that has collectively garnered over 200 citations and helped shift clinical consensus on a once-controversial technique. His earlier investigations into epicardial microwave ablation and robot-assisted pulmonary vein isolation (64 and 36 citations respectively) established foundational evidence for minimally invasive cardiac arrhythmia treatment. Beyond operative innovation, Maessen has contributed to surgical education through high-fidelity simulation development and, more recently, to emerging conversations around artificial intelligence ethics in surgery. His career reflects a consistent commitment to expanding the boundaries of minimally invasive surgery while rigorously evaluating long-term patient outcomes — making his work essential reading for surgeons and trainees in thoracic and cardiac subspecialties.