Responsiveness of Jaw Motor Activation to Arousals during Sleep in Patients with Obstructive Sleep Apnea Syndrome

• DOI: 10.5664/jcsm.2914
• Publication Date: 2013-08-22T15:05:08Z
• Authors: Takafumi Kato; Takeshi Katase; Shuichiro Yamashita; Hideko Sugita; Hisae Muraki; Akira Mikami; Mutsumi Okura; Motoharu Ohi; Yuji Masuda; Mitsutaka Taniguchi
• Keywords: Sleep

Objectives:We aimed to characterize the association between jaw muscle contractions and respiratory events in patients with obstructive sleep apnea syndrome (OSAS) investigate responsiveness of comparison that leg muscles terms arousal types states.Methods: Polysomnographic (PSG) recordings were performed 19 OSAS (F/M: 2/17; 53.1 ± 13.7 years; AHI: 31.8 19.9/h) no concomitant bruxism or other sleep-related movement disorders.Muscle unilateral masseter (MAS) anterior tibialis (AT) scored during graded arousals (microarousals awakenings) related unrelated apneahypopnea events.Results: Arousals for 68.2% 52.3% light NREM REM sleep, respectively.Respiratory associated longer event duration and/or larger transient oxygen desaturation than those without (ANOVAs: p < 0.05).Median response rates MAS 32.1% 18.9% sleep.During two states, was rarely activated after arousals, while its rate increased signifi cantly (Friedman tests: 0.001).A similar pattern found AT muscle.Motor did not differ from spontaneous stages. Conclusion:In OSAS, can be nonspecifi c motor phenomena, dependent on rather occurrence events.