caa a22 4500 606184422 CHVBK 20210128100826.0 cr unu---uuuuu 210128e20151201xx s 000 0 eng 10.1007/s00405-014-3302-1 doi (NATIONALLICENCE)springer-10.1007/s00405-014-3302-1 Importance of yawning in the evaluation of excessive daytime sleepiness: a prospective clinical study [Elektronische Daten] [Tolgahan Catli, Mustafa Acar, Deniz Hanci, Osman Arikan, Cemal Cingi] As a dark and not fully understood side of human nature, yawning is believed to be a signs of various physiological or pathological behaviors of human. In this study, we aimed to investigate the importance of yawning in the evaluation of sleepiness. One hundred and twenty-nine snorers who were suspected to have obstructive sleep apnea syndrome underwent polysomnography and were asked to fill the Epworth sleepiness scale. The number of yawnings of patients was counted during the day following polysomnography. Patients were stratified into two groups: those have apnea hypopnea index <5 (n=43, group 1) and those have apnea hypopnea index >30 (n=86, group 2). Mean duration of sleep phases, oxygen saturations, sleep efficacies, yawning frequencies and Epworth scores of the groups were compared. Correlations of yawning frequency with Epworth scores, duration of sleep phases and mean oxygen saturations were investigated. Sleep efficacies were similar between the groups (p>0.05). Yawning frequencies in group 1 and group 2 were 43.48 and 75.76 (mean rank), respectively (p<0.01). Mean N1, N2, N3 phase durations and oxygen saturations were significantly lower in group 2 (p<0.01). While there was a negative correlation between yawning frequency and duration of the non-REM phases and mean oxygen saturation (r=−0.53 and r=−0.31, respectively, p<0.05), yawning frequency was positively correlated with Epworth scores (r=0.46, p<0.05). In addition to the shortened phases of sleep, increased Epworth score and decreased oxygen saturation, increased yawning frequency may indicate sleep deprivation. Springer-Verlag Berlin Heidelberg, 2014 Yawning nationallicence Excessive daytime sleepiness nationallicence Obstructive sleep apnea nationallicence Sleep phases nationallicence Catli Tolgahan Department of Otorhinolaryngology, Bozyaka Teaching and Research Hospital, Karabağlar, 35170, Izmir, Turkey aut Acar Mustafa Department of Otorhinolaryngology, Yunus Emre State Hospital, Eskisehir, Turkey aut Hanci Deniz Department of Otorhinolaryngology, Liv Hospital, Istanbul, Turkey aut Arikan Osman Department of Otorhinolaryngology, Numune Teaching and Research Hospital, Adana, Turkey aut Cingi Cemal Department of Otorhinolaryngology, Medical Faculty, Eskisehir Osmangazi University, Eskisehir, Turkey aut European Archives of Oto-Rhino-Laryngology Springer Berlin Heidelberg 272/12(2015-12-01), 3611-3615 0937-4477 272:12<3611 2015 272 405 https://doi.org/10.1007/s00405-014-3302-1 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 review-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s00405-014-3302-1 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Catli Tolgahan Department of Otorhinolaryngology, Bozyaka Teaching and Research Hospital, Karabağlar, 35170, Izmir, Turkey aut NATIONALLICENCE 700 1- Acar Mustafa Department of Otorhinolaryngology, Yunus Emre State Hospital, Eskisehir, Turkey aut NATIONALLICENCE 700 1- Hanci Deniz Department of Otorhinolaryngology, Liv Hospital, Istanbul, Turkey aut NATIONALLICENCE 700 1- Arikan Osman Department of Otorhinolaryngology, Numune Teaching and Research Hospital, Adana, Turkey aut NATIONALLICENCE 700 1- Cingi Cemal Department of Otorhinolaryngology, Medical Faculty, Eskisehir Osmangazi University, Eskisehir, Turkey aut NATIONALLICENCE 773 0- European Archives of Oto-Rhino-Laryngology Springer Berlin Heidelberg 272/12(2015-12-01), 3611-3615 0937-4477 272:12<3611 2015 272 405