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Sleep disordered breathing (SDB) comprises a spectrum of disorders, ranging from simple snoring to severe obstructive sleep apnoea (OSA), with a significant burden to health care systems in high income countries. If left untreated, OSA has significant cumulative, long-term health consequences. In the 1990s drug induced sedation endoscopy (DISE) has been developed to become a primary tool in the diagnosis and management of OSA. It allows meticulous endoscopic evaluation of the airway and identifies areas of collapse, thereby informing both on the selection of surgical techniques, where efficacy depends entirely on success at relieving obstruction at a certain level and on the usefulness of conservative measures, such as mandibular advancement splints. This article provides a review of the literature on DISE, covering different grading systems and techniques, explaining different rationales and discussing controversies. [ABSTRACT FROM AUTHOR]

Introduction Radiofrequency ablation treatment of the tongue base can be used either alone or as part of a multilevel approach in the treatment of snoring. This involves the generation of thermal energy around the circumvallate papillae of the tongue. Potential complications include ulceration, dysphagia, haematoma and abscess formation. Presentation of case We present the case of a 50-year-old patient who developed an anterior neck swelling following a second application of radiofrequency ablation therapy to the tongue base for snoring. This was secondary to an infection of a previously undiagnosed thyroglossal cyst. The patient made a full recovery following intravenous antibiotic therapy and ultrasound-guided needle aspiration. Discussion Thyroglossal tract remnants are thought to be present in seven percent of the adult population. An infection in a thyroglossal tract cyst has not previously been reported following radiofrequency ablation of the tongue base. Given the relatively high complication rate of tongue base radiofrequency ablation in some series, this complication may be under-recognised. Conclusion An infected thyroglossal tract cyst should be suspected in patients with anterior neck swellings following radiofrequency ablation therapy to the tongue base. We advise caution when performing this procedure on patients with known thyroglossal tract remnants though there is insufficient evidence to suggest that this procedure is contraindicated. [ABSTRACT FROM AUTHOR]

Summary A surgical approach to treatment of obstructive sleep apnoea (OSA) remains an area of intense debate, both within and without the surgical community itself. Continuous positive airway pressure (CPAP) therapy remains the gold standard for the treatment of OSA, however surgery may be indicated to facilitate CPAP and/or improve compliance in cases where CPAP is poorly tolerated. This article summarises the current range of surgical treatment options together with the evidence base for their intervention in otolaryngology, maxillofacial and bariatric surgery. The continued evolution of technology has brought new surgical techniques to the fore and it seems likely their utilisation together with a multi-level surgical approach to the airway will continue to influence forthcoming research in OSA. Patient selection and precise evaluation will remain crucial in ensuring that when surgery is indicated, the correct procedure or procedures are performed at the correct anatomical level. [ABSTRACT FROM AUTHOR]