With heavy hearts, we share the news of the passing of Professor Vedran Deletis, a pioneering luminary in our field, who died last week at the age of 77. He stood as an extraordinary scientist and educator, often revered as the trailblazer of Intraoperative Neurophysiology. Professor Deletis ignited inspiration in countless hearts and minds through his profound research and impactful teachings. We'd like to honour his invaluable contributions to our discipline and extend our deepest condolences to his loved ones, friends, and colleagues.