title: Combined radiofrequency surgery of the tongue base and soft palate in obstructive sleep apnoea.
abstract: OBJECTIVE
  To investigate the safety and efficacy of combined temperature-controlled radiofrequency volumetric tissue reduction of the tongue base and soft palate in obstructive sleep apnoea.
  
  
  METHODS
  A total of 20 patients with obstructive sleep apnoea and combined palatal and retrolingual obstruction were included in a non-randomized clinical trial and 51 combined treatments were performed under local anaesthesia. Postoperative pain was assessed using visual analogue scales. Functional parameters, daytime sleepiness and quality of life were assessed using questionnaires (Epworth Sleepiness Scale, Short Form-36) before and 12 weeks after the last treatment session. Concurrently, polysomnography was performed on two consecutive nights. Results The mean postoperative pain score dropped from 5.6 at Day 1 to 0.6 at Day 7. Painkillers were taken for a mean of 3.3 days. There were no postoperative complications or changes in functional parameters. Daytime sleepiness improved significantly (p<0.05). The mean respiratory disturbance index was reduced from 25.3+/-11.4 to 16.7+/-15.3 (p<0.05). Six out of 18 (33%) patients were cured after a mean of 2.7 treatment sessions.
  
  
  CONCLUSIONS
  Combined radiofrequency volumetric tissue reduction of the tongue base and soft palate is a safe and effective treatment for obstructive sleep apnoea.
authors.affiliation: Department of Otorhinolaryngology--Head and Neck Surgery, Sleep Disorders Center, University Hospital Mannheim, Mannheim, Germany.
authors.forename: Boris A
authors.initials: BA
authors.lastname: Stuck
authors.forename: Katrin
authors.initials: K
authors.lastname: Starzak
authors.forename: Gerhard
authors.initials: G
authors.lastname: Hein
authors.forename: Thomas
authors.initials: T
authors.lastname: Verse
authors.forename: Karl
authors.initials: K
authors.lastname: Hörmann
authors.forename: Joachim T
authors.initials: JT
authors.lastname: Maurer
mesh_terms: D015992:Body Mass Index; D017115:Catheter Ablation / Q000379:methods*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D010147:Pain Measurement; D010149:Postoperative Pain / Q000175:diagnosis; D010160:Palate, Soft / Q000601:surgery*; D017286:Polysomnography / Q000379:methods; D011446:Prospective Studies; D012120:Respiration Disorders / Q000175:diagnosis / Q000209:etiology; D012720:Severity of Illness Index; D020181:Sleep Apnea, Obstructive / Q000150:complications / Q000601:surgery*; D011795:Surveys and Questionnaires