Comparative study of four radiofrequency generators for the treatment of snoring

Otolaryngol Head Neck Surg. 2008 Mar;138(3):294-9. doi: 10.1016/j.otohns.2007.11.008.


Objective: To compare the efficacy and safety of four radiofrequency generators (Ellman, Select Sutter, Coblator, Somnus) for the treatment of simple snoring.

Materials and methods: Multicenter, randomized, prospective single-blind study on 120 selected patients with simple snoring (apnea/hypopnea index <10/h of sleep). Snoring sound intensity was measured on a visual analog scale and the partner's short-term satisfaction rate was evaluated after two treatment sessions maximum. Discomfort, pain, and medication intake were compared.

Results: Radiofrequency decreased the snoring sound intensity from 7.9 +/- 1.7 to 4.4 +/- 2.7 (P < 0.0001). The four radiofrequency generators had a statistically comparable efficacy. The Ellman generator caused less discomfort and required less anti-inflammatory drugs.

Conclusion: Despite different technical characteristics, the four generators had a comparable efficacy with good safety. The Ellman generator induced the least discomfort.

Publication types

  • Comparative Study
  • Multicenter Study
  • Randomized Controlled Trial

MeSH terms

  • Catheter Ablation / instrumentation*
  • Humans
  • Pain Measurement
  • Palate / surgery*
  • Prospective Studies
  • Snoring / prevention & control
  • Snoring / surgery*
  • Treatment Outcome