Research at the Department of Otorhinolaryngology, Head & Neck Surgery focuses on infections and malignancies of the nasal cavity, the pharynx, and the larynx. Furthermore, the surgical treatment of oral cancer, thyroid & parathryroid gland diseases, and central airway stenosis are areas of numerous research projects.

Pharyngeal and other ENT infections
In collaboration with Department of Clinical Microbiology, Statens Serum Institute, and general practitioners, the department has a long history of research into ENT infections with a special focus on tonsillar microbiology and the importance of Fusobacterium necrophorum.

Thyroid and parathyroid glands
Our main focus is related to the quality of surgical treatment of both benign and malignant diseases including potential complications. Since both thyroid and parathyroid glands are hormonal active, research also addresses these hormones and changes after operation. For a single patient, this may have either positive or negative consequences and may affect quality of life, need for medical treatment etc. Several research projects are performed in alliance with Departments of Endocrinology, Nephrology, Pathology, and Nuclear Medicine. All thyroid operations are registered in national databases.

Surgical treatment of oral cancer
Surgical treatment of oral cancer is challenging. Even after aggressive treatment, recurrences are well-known and the functional outcomes are very important (food intake, speech etc.). We perform research into the performance of the different flaps used for reconstruction of the mouth, including free flaps. 

Transoral robotic surgery (TORS), cancer of unknown primary (CUP), and oropharyngeal cancer
TORS is a promising modality for improvement of head and neck cancer management, especially for CUP and oropharyngeal cancer. The use of robotics as a supplementary diagnostic modality in CUP, as a singly modality treatment in early oropharyngeal cancer, and the cost-effectiveness are focuses of research.

Laryngeal intraepithelial neoplasia and glottic cancer
Primary surgical treatment of laryngeal intraepithelial neoplasia and early stage glottic cancer was introduced in 2012 based on the principles of transoral laser-microsurgery. Along with this approach, new diagnostic techniques were introduced. Research in this field focuses on the efficacy of the diagnostic work-up as well as treatment outcome and morbidity.

Central airway stenosis
Endoscopic and open resections of central airway stenoses are performed at our department. Our research aim to improve the knowledge on the upsides and complications to these procedures and with a focus to pinpoint the best operation for each patient. 

Obstructive sleep apnea (OSA)
The utility of video extradition of continuous positive airway pressure, OSA after nasal surgery, and the relationship between OSA and craniofacial development are areas of scientific interest.