ObjectiveTo determine the long-term (>3 years) outcome of patients suffering from simple snoring or non-severe obstructive sleep apnea syndrome (OSAS) treated by radiofrequency ablation of the soft palate.Study designObservational retrospective study.SettingTertiary care university hospital.Subjects and methodsSeventy-seven subjects were included between 1999 and 2006. Twenty-seven suffered from mild or moderate OSAS. All patients were treated by radiofrequency-assisted stiffening of the soft palate, with or without uvulectomy. Snoring (assessed on a 10cm visual analog scale (VAS)), marital status, presence of cardiovascular risk factors or pathologies and follow-up time were evaluated by postal questionnaire.ResultsMean follow-up time was 6.3±2.3 years. Mean snoring intensity decreased significantly in the immediate postoperative period (8.1±2.9 to 3.5±2.2cm on VAS). Over the longer term, however, we observed a significant increase in snoring intensity (5.7±2.9cm), which nevertheless remained below the preoperative values (P