About

Professor Sheahan is a Consultant in Otolaryngology – Head and Neck Surgery at the South Infirmary Victoria Hospital and Cork University Hospital, Cork, and Associate Professor of Otolaryngology at University College Cork. He specializes in Head and Neck Surgery, including Thyroid surgery, Parathyroid surgery, Parotid and salivary gland surgery, laser surgery, vocal cord surgery, and Head and Neck Cancer. Professor Sheahan is a graduate of University College Cork and completed specialist training in Otolaryngology (Ear, Nose, and Throat Surgery) in Dublin and Cork as part of the Royal College of Surgeons in Ireland Higher Surgical Training Scheme, obtaining his intercollegiate examination and Fellowship of the RCSI in 2006, and specialist registration with the Irish Medical Council in the division of Otolaryngology in 2007. He completed advanced Fellowships in Head and Neck Oncological Surgery and Rhinology at Memorial Sloan Kettering Cancer Centre, New York, and the Medical University of South Carolina, Charleston, SC, between 2007 and 2008, and was appointed consultant in Cork in 2009, and professor in 2017.

Professor Sheahan is an expert in Thyroid Surgery, Parathyroid Surgery, Salivary Gland surgery, laser surgery, and Head and Neck Cancer. He has published many high impact articles in international journals and has been an invited guest speaker at many major international conferences and national ENT Society meetings, including national meetings of the German ENT Society (2025), Czech and Slovak ENT Society (2024), Israeli ENT Society (2023), and Royal Belgian ENT Society (2016). Recent international conferences where Professor Sheahan was invited speaker include the International Academy of Oral Oncology (Liverpool, 2025), World Congress in Thyroid Cancer (Boston, 2025), International Federation of Head & Neck Oncological Societies summit (Dubai, 2025), Confederation of European Otorhinolaryngology (CEORL) (Dublin, 2024), European Congress in Head and Neck Oncology (Lisbon, 2023), Confederation of European Otorhinolaryngology (CEORL) (Milan, 2022). He has also been invited faculty to International Head and Neck teaching courses, including the Iowa Head and Neck Course in 2024. Professor Sheahan has authored over 130 scientific publications. To view publications by Professor Sheahan, please click here. To view international invited lectures of Professor Sheahan, please click here.

In addition, Professor Sheahan is founder and President of the Irish Head and Neck Society (IHNS). The IHNS is now one of the largest national multidisciplinary Head and Neck Societies in Europe, and holds an annual meeting every year in Kilkenny which is attended by over 200 delegates. Professor Sheahan is currently also on the Presidential Council of the Confederation of European Otorhinolaryngology (CEORL), currently serving as Treasurer-Elect. He is also the current director of the ENTO research unit at University College Cork.

Professor Sheahan accepts referrals of patients with all ENT related complaints, including thyroid, parathyroid, and salivary diseases, hoarseness, swallowing or throat symptoms, throat pain, neck swellings, and sinus or nasal issues. Professor Sheahan performs a very high volume of specialized surgery, including over 2,000 thyroid and parathyroid operations, 500 parotid gland operations, 1,000 major operations for Head and Neck Cancer, and over 400 laser surgeries.

For more information on Thyroid, please click here. For more information on Parathyroid, please click here. For more information on Parotid, please click here. For more information on Laser surgery, please click here. For more information on Head and Neck Cancer, please click here.