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  • Title: Sutter bipolar radiofrequency volumetric tissue reduction of palate for snoring and mild obstructive sleep apnoea: is one treatment adequate?
    Author: Pang KP, Siow JK.
    Journal: J Laryngol Otol; 2009 Jul; 123(7):750-4. PubMed ID: 19134243.
    Abstract:
    OBJECTIVE: To evaluate the efficacy of bipolar radiofrequency volumetric tissue reduction, using Sutter technology, in the treatment of snoring and mild obstructive sleep apnoea. DESIGN: Prospective, non-randomised trial. METHODS: Fifty-two patients with simple snoring and mild obstructive sleep apnoea underwent bipolar radiofrequency palate reduction under local anaesthesia. RESULTS: All patients were Friedman stage II and III, with tonsil sizes graded as zero, one or two, a mean body mass index of 22.6, and a mean age of 36.2 years. Seventy-seven per cent of patients reported improvement in their snoring; patients' mean snoring level (assessed by visual analogue scale) improved from 8.9 to 3.4 (p < 0.05). Eighty-three per cent of patients reported an improvement in their Epworth sleepiness scale score, from a mean of 14.6 to 9.5. Seven out of the 17 patients (41.2 per cent) met the surgical success criteria (i.e. at least a 50 per cent reduction of the pre-procedure apnoea-hypopnoea index, and a post-procedure apnoea-hypopnoea index of below 15). Patients' mean apnoea-hypopnoea index improved from 13.6 to 9.8, and their mean lowest oxygen saturation improved from 88.3 to 92.5 per cent. Eighty-two per cent of patients reported an improvement in their quality of life as a result of the procedure. CONCLUSION: One session of Sutter bipolar radiofrequency tissue volume reduction represents a viable method of treating snoring and mild obstructive sleep apnoea, with good results.
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