Dr. Jakov Ajduk is an Associate Professor of Otorhinolaryngology and Head and Neck Surgery at the University of Zagreb School of Medicine and a practicing specialist at the University Hospital Centre “Sestre milosrdnice” in Zagreb, Croatia. He completed his medical degree at the University of Zagreb in 2001 and later obtained his PhD in 2013, focusing on immunological mechanisms in allergen-specific immunotherapy. Dr. Ajduk specializes in otology and audiology, having completed subspecialty training in both areas. His clinical interests include cochlear implantation, middle ear surgery, and the management of sudden sensorineural hearing loss. He has undergone advanced training at leading international centers and has published over 30 scientific papers. He is a frequent invited speaker at national and international conferences. He is an active member and vice-president of several Croatian professional societies, and has contributed to multiple book chapters on otologic and skull base surgery. Dr. Ajduk is also involved in postgraduate teaching and clinical research, with a focus on auditory implants and immunomodulation in ENT diseases.