Prof. Dr. Nikolay Sapundzhiev, MD, PhD serves as the Head of the ENT Clinic at the University Multi-Profile Hospital for Active Treatment "St. Marina" in Varna. Additionally, he holds the position of Full Professor within the Department of Neurosurgery and ENT Diseases at Medical University – Varna. He is active in all fields of Otorhinolaryngology Head and Neck Surgery with particularly interest in the diagnosis and treatment of pediatric airway problems, laryngology, middle ear surgery and cochlear implantation.