Abstract Mkid 28

Aim of this study was to evaluate the effects of a non-invasive external nasal dilator (Breathe Right) in a selected sample of habitual snorers without OSA. Twenty subjects have been evaluated before and after 8-night treatment by means of a portable multichannel monitoring device (MESAM 4). Snoring percentage (a visual scoring of each 5- min epoch was performed) resulted lower in the "treatment nights" in comparison to baseline (25.7% vs 32.9%), but the difference was not statistically significant (p<.06). Seven subjects were arbitrarily defined as "responders" since they had a reduction > 10% of the snoring percentage in the "treatment nights". No difference was found in the clinical, ENT, cephalometric characteristics between "responders" and "non-responders". Snoring percentage variation with the nasal dilator was significantly correlated with the subjective improvement of sleep quality (p=.02).