Evaluation of olfactory function in patients with obstructive sleep apnea syndrome.

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ID: 78911
2019
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Abstract
To investigate the pathophysiological mechanisms underlying the effects of obstructive sleep apnea syndrome (OSAS) on olfactory functions.Study subjects consisted of patients with newly diagnosed OSAS divided by polysomnography into subgroups of mild, moderate, and severe disease. Subjects identified as not having OSAS served as controls. All subjects were subjected to the Sniffin' Sticks test to evaluate olfactory functions. Control subjects and subgroups with OSAS were compared for sleep characteristics and olfactory scores. In the patient group, correlations were investigated between olfactory scores and polysomnographic parameters.Of 99 subjects (64 men), there were 20 controls, 23 with mild OSAS, 25 moderate, and 31 severe. There was a decreasing trend from the control group towards the severe subgroup in mean odor threshold, odor discrimination, odor identification, and threshold-discriminationidentification (TDI) scores. In the patient group, there was a strong inverse correlation between AHI and TDI scores (r = - 0.62, p < 0.001). Arousal index and TDI scores had a strong negative correlation (r = - 0.81, p < 0.001). There was a weak positive correlation between the minimum SPO2% and TDI scores (r = 0.34, p = 0.002) and a weak negative correlation between TST <90% and TDI scores (r = - 0.24, p = 0.027).The finding that arousal index showed a stronger correlation with odor scores than with hypoxemia-related parameters suggests that sleep fragmentation may be a more prominent mechanism underlying the pathophysiology of olfactory malfunction in patients with OSAS.
Reference Key
karakurt2019evaluationsleep Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Karakurt, Süleyman Emre;Karakuş, Mehmet Fatih;Çolak, Mustafa;Akbal, Şeyda;Çetin, Mehmet Ali;İkincioğulları, Aykut;Dere, Hacı Hüseyin;
Journal Sleep & breathing = Schlaf & Atmung
Year 2019
DOI
10.1007/s11325-019-01996-z
URL
Keywords
polysomnography obstructive sleep apnea smell sleep fragmentation olfaction disorders sniffin’ sticks

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