Body position and obstructive sleep apnea syndrome

Çuhadaroğlu, Çağlar; Keleş, Nesil; Erdamar, Burak; Aydemir, N. A.; Yücel, Emre; Oğuz, Fatma; Değer, Kemal

doi:10.1002/ppul.10366

Cited by 28 publications

(27 citation statements)

References 16 publications

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“…The recordings of polysomnographic measurements were visually scored according to standard criteria and the average apnea/hypopnea index (AHI) was calculated [5]. The reproducibility of the method has previously been described [6]. As inclusion criteria for this study, all patients with sleep International Journal of Cardiology 118 (2007) 203 -205 www.elsevier.com/locate/ijcard apnea were newly diagnosed, normotensive, ejection fraction (EF) N 45%, AHI N 30 per hour of sleep and taking no medication.…”

Section: Methodsmentioning

confidence: 99%

Occult cardiac dysfunction in patients with obstructive sleep apnea syndrome revealed by tissue Doppler imaging

Kaşıkçıoğlu

Karasulu

Tartan

et al. 2007

International Journal of Cardiology

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Section: Methodsmentioning

confidence: 99%

Occult cardiac dysfunction in patients with obstructive sleep apnea syndrome revealed by tissue Doppler imaging

Kaşıkçıoğlu

Karasulu

Tartan

et al. 2007

International Journal of Cardiology

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“…The disorder affects 2-4% of adults in whom the supine position is associated with an increase in airway obstruction [1]. This observation has not been widely accepted in children with certain studies showing that either the sleeping position had no effect on obstructive episodes or there were fewer events in the supine position [2][3][4]. However, a previous study at our institution showed that in children less than 3 years of age the supine position was associated with significantly worse airway obstruction [5].…”

Section: Introductionmentioning

confidence: 98%

Body position and obstructive sleep apnea in 8–12-month-old infants

Pereira

Rathi

Fatakia

et al. 2008

International Journal of Pediatric Otorhinolaryngology

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“…8,9 Another study that included children aged 1 to 10 y with OSA suggested that there were less obstructive events in the supine position. 10 Cuhadaroglu et al 11 evaluated the effect of sleep position in a small cohort of non-obese children with a mean age of 6.2 y and they found that AHI was highest in lateral position in children with adenoid hypertrophy, whereas in children with adenotonsillar hypertrophy the AHI was found to be higher in the supine position due to the possible gravity effect on tonsillar tissue. 11 In a subsequent study, obstructive events were found to be more predominant in the supine position, with no effect of tonsillar size on positional distribution of the obstructive events.…”

Section: Discussionmentioning

confidence: 99%

“…[4][5][6] Also, the effect of position on the distribution of obstructive respiratory events in the pediatric population is not consistent among different studies. [7][8][9][10][11][12] Furthermore, previous studies assessing the effect of sleep stage and position on the distribution of obstructive respiratory events did not explore such effects in a pediatric adolescent population. …”

Section: Introductionmentioning

confidence: 99%

Effect of Sleep State and Position on Obstructive Respiratory Events Distribution in Adolescent Children

El‐Kersh

Cavallazzi

Patel

et al. 2016

Journal of Clinical Sleep Medicine

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Study Objectives: This study aimed to examine the effect of sleep state (rapid eye movement [REM] versus non-rapid eye movement [NREM]) and position (supine versus non-supine position) on obstructive respiratory events distribution in adolescent population (ages 12 to 18 y). Methods: This was a retrospective study that included 150 subjects between the ages of 12 to 18 y with an apnea-hypopnea index (AHI) > 1/h. Subjects using REM sleep-suppressant medications and subjects with history of genetic anomalies or craniofacial syndromes were excluded. Results: The median age was 14 y with interquartile range (IQR) of 13 to 16 y, 56% of patients were males and the median body mass index (BMI) z-score was 2.35 (IQR: 1.71-2.59) with 77.3% of patients fulfilling obesity criteria. Respiratory obstructive events were more common in REM sleep. The median REM obstructive AHI (OAHI) was 8.9 events per hour (IQR: 2.74-22.8), whereas the median NREM OAHI was 3.2 events per hour (IQR: 1.44-8.29; p < 0.001). African American adolescents had more REM obstructive events with median REM OAHI of 13.2 events per hour (IQR: 4.88-30.6), which was significantly higher than median REM OAHI of 4.94 (IQR: 2.05-11.36; p = 0.004) in white adolescents. Obstructive events were more common in supine position with higher median supine OAHI of 6.55 (IQR: 4-17.73) when compared to median non-supine OAHI of 2.94 (IQR: 1-6.54; p < 0.001).Conclusions: This study shows that sleep related obstructive respiratory events in the adolescents (12 to 18 y of age) occur predominantly in REM sleep and in supine position. I NTRO DUCTI O NObstructive sleep apnea (OSA) is a sleep related breathing disorder that can affect up to 5% of children.1 It is characterized by partial or complete upper airway obstruction that can disrupt normal sleep ventilation and sleep pattern.2 This upper airway obstruction can occur in rapid eye movement (REM) and non-rapid eye movement (NREM) sleep. In REM sleep, the withdrawal of excitatory noradrenergic and serotonergic inputs to upper airway motor neurons further reduces pharyngeal muscle activity, which together with reduced arousal threshold and reduced ventilatory responses to hypoxia and hypercapnia increase the propensity for upper airway obstruction in REM sleep, with more prolonged obstructions accompanied by severe desaturations. Although obstructive respiratory events in children, unlike adults, is thought to be REM predominant, a subset of pediatric population may have NREM predominance of their obstructive respiratory events. [4][5][6] Also, the effect of position on the distribution of obstructive respiratory events in the pediatric population is not consistent among different studies. [7][8][9][10][11][12] Furthermore, previous studies assessing the effect of sleep stage and position on the distribution of obstructive respiratory events did not explore such effects in a pediatric adolescent population. ObjectiveThe objective of this study was to examine the distribution of obstructive respiratory events in REM versu...

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Body position and obstructive sleep apnea syndrome

Cited by 28 publications

References 16 publications

Occult cardiac dysfunction in patients with obstructive sleep apnea syndrome revealed by tissue Doppler imaging

Occult cardiac dysfunction in patients with obstructive sleep apnea syndrome revealed by tissue Doppler imaging

Body position and obstructive sleep apnea in 8–12-month-old infants

Effect of Sleep State and Position on Obstructive Respiratory Events Distribution in Adolescent Children

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