Abstract
BackgroundObstructive sleep apnea is a condition characterized by the complete or partial obstruction of the upper airway during sleep. This study aimed to compare the clinical and polysomnographic characteristics of our obstructive sleep apnea patients according to their positional and non-positional features.ResultsTwo hundred eighty patients were included in the study. One hundred two patients (36.43%) were female, while 178 patients (63.57%) were male. While 88 (31.43%) of these patients were defined as positional patients, 192 (68.57%) were defined as non-positional patients. The mean age of the positional patients (46.78 ± 9.66) was lower than the mean age of the non-positional patients (50.90 ± 10.96) (p 0.001). Similarly, the mean body mass index of the positional patients (29.39 ± 3.80) was lower than the mean body mass index of the non-positional patients (33.30 ± 6.45) (p < 0.001). Neck circumference values of the positional patients (40.36 ± 2.65) were lower compared to the non-positional patients (43.32 ± 2.54) (p < 0.001).Sleep values were compared based on the presence of positional sleep apnea. In the positional patients, sleep duration, sleep efficiency (percentage), duration of stage N3, minimum, and mean saturation values were found to be higher compared to the non-positional patients, while nightlong apnea hypopnea index, apnea index, percentage of sleep time with oxygen saturation below 90%, oxygen desaturation index, mean heart rate, and periodic limb movement index values were found to be lower (p < 0.05).The rate of severe sleep apnea (7.95%) in the positional patients was lower than the non-positional patients (53.65%) (p < 0.001).ConclusionIn the light of these data, positional OSA is a very important condition presented in 31.43% of OSA patients and it was determined that these patients were younger, had less body mass index, and shorter neck circumference. The rate of severe disease was found to be lower in positional OSA patients
Highlights
Obstructive sleep apnea is a condition characterized by the complete or partial obstruction of the upper airway during sleep
The polysomnographic records of the patients were examined, and polysomnographic findings such as total sleep duration, sleep efficiency, sleep latency, sleep stages, apnea hypopnea index (AHI), apnea index (AI), AHI in the supine and lateral position, minimum oxygen saturation, mean oxygen saturation, oxygen desaturation index (ODI), percent sleep time spent with oxygen saturation< 90% (TST 90), and periodic limb movement index (PLM) were recorded
Sleep duration, sleep efficiency, duration of stage N3, minimum, and mean saturation values were found to be higher compared to the non-positional patients, while nightlong AHI, AI, percentage of sleep time with oxygen saturation below 90%, sleep ODI, mean heart rate, and PLM index values were found to be lower (p < 0.05) (Table 1)
Summary
Obstructive sleep apnea is a condition characterized by the complete or partial obstruction of the upper airway during sleep. Physiological changes that emerge as a result of recurrent apneas cause the Abnormalities in the pharynx anatomy, physiology of the upper respiratory tract dilator muscles, and stability of respiratory control are important causes of recurrent pharyngeal collapse during sleep [2]. This event occurring with a complex structural and neuromuscular interaction is still not fully known [4]. A study revealed that there were fewer and less severe respiratory abnormalities in the positional OSA group compared to the nonpositional OSA group, and it was observed to have an inversely proportional relationship with body mass index (BMI) and age [8].
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
