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Eur Arch Otorhinolaryngol. 2007 Jun;264(6):659-67. Epub 2007 Feb 9.

Bipolar radiofrequency treatment for snoring with mild to moderate sleep apnea: a comparative study between the radiofrequency assisted uvulopalatoplasty technique and the channeling technique.

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  • 1Department of Otolaryngology, Faculty of Medicine, Cairo University, Cairo, Egypt.


We compared radiofrequency techniques used in the treatment of snoring and obstructive sleep apnea [radiofrequency assisted uvulopalatoplasty (RAUP) and channeling] as regard the efficacy and morbidity. A pilot, prospective randomized single blinded study was conducted on 40 patients in the ENT Department, Kasr Al-Aini Hospital, Cairo University during the period from April to December 2003. Patients were randomized into two groups each consisting of 20 patients. The first group was treated by submucosal channeling of the palate, while the second group was treated by radiofrequency assisted uvulopalatoplasty (RAUP). Patients were followed for 4 months, filling a questionnaire in a standard visual analogue score pattern. Assessment was done prior to the surgery and was repeated 3, 10 days and 3 weeks postoperatively. Visual analogue scores were done for the following parameters: pain, speech deficits, dysphagia, and snoring (by the bed partner). Polysomnography was done pre to intervention and was repeated 4 months postoperatively. This work confirms the favorable effects of radiofrequency in the treatment of patients with snoring and mild to moderate obstructive sleep apnea (OSA) particularly on snoring, confirming the results of the previous studies and highlighting the more rapid relief of snoring and apnea in RAUP group compared to channeling group but with more postoperative pain and morbidity.

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