Prevalence of positional sleep apnea in patients undergoing polysomnography.

@article{Mador2005PrevalenceOP,
  title={Prevalence of positional sleep apnea in patients undergoing polysomnography.},
  author={M Jeffery Mador and Thomas J. Kufel and Ulysses J. Magalang and Subhedhar Rajesh and Veena Watwe and Brydon J. B. Grant},
  journal={Chest},
  year={2005},
  volume={128 4},
  pages={
          2130-7
        }
}
STUDY OBJECTIVES The primary aim of this study was to determine the prevalence of positional obstructive sleep apnea using a functional definition. Positional sleep apnea was defined as a total apnea-hypopnea index (AHI) > or = 5 with a > 50% reduction in the AHI between the supine and nonsupine postures, and an AHI that normalizes (AHI < 5) in the nonsupine posture. A secondary aim was to determine if positional sleep apnea can be diagnosed accurately during a split-night study. DESIGN… 

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References

SHOWING 1-10 OF 38 REFERENCES

Positional vs nonpositional obstructive sleep apnea patients: anthropomorphic, nocturnal polysomnographic, and multiple sleep latency test data.

Univariate and multivariate stepwise logistic regression analysis showed that the most dominant variable that correlates with positional dependency in OSA patients is RDI, followed by BMI which also adds a significant contribution to the prediction of positional dependency.

Positional treatment vs continuous positive airway pressure in patients with positional obstructive sleep apnea syndrome.

Positional treatment and CPAP have similar efficacy in the treatment of patients with positional OSA, and there was no significant difference, however, in sleep architecture, Epworth Sleepiness Scale scores, maintenance of wakefulness testing sleep latency, psychometric test performance, mood scales, or quality-of-life measures.

Sleep apnea and body position during sleep.

AD is longer in REM than NREM, regardless of position, and AHI is higher on the back only in NREM; however, favoring the lateral decubitus position may not be as beneficial as previously thought in very obese patients.

Relations between sleep stage, posture and effective nasal CPAP levels in OSA.

A retrospective analysis of positional data from 100 male patients with obstructive sleep apnea (OSA) was conducted to determine whether or not 1) the degree of positional dependency was similar in

Effect of sleep position on sleep apnea severity.

For 24 subjects of this sample, who occupied both major body positions during the evaluation night, the apnea index was found to be twice as high during the time spent sleeping on their backs as it was when they slept in the side position, suggesting sleep position adjustment may be a viable treatment for some nonobese sleep apnea patients.

Sleep position training as treatment for sleep apnea syndrome: a preliminary study.

Ten male patients selected as having sleep apnea predominantly of the obstructive type associated with the supine sleep position on their evaluation night were trained for 1 additional night to avoid

A comparative study of treatments for positional sleep apnea.

There is an additive effect for the positional patient from wearing a tongue retaining device (TRD) if they continue to sleep in the supine position if they have apnea plus hypopnea plus apnea indices above 12.5.

Avoiding the supine position during sleep lowers 24 h blood pressure in obstructive sleep apnea (OSA) patients

Avoiding the supine position during sleep, if confirmed by future studies, could become a new non-pharmacological form of treatment for many hypertensive patients.

The effect of polysomnography on sleep position: possible implications on the diagnosis of positional obstructive sleep apnea.

PSG may overestimate the severity of OSA in some patients with positional OSA because the time spent supine during the PSG night was 56% greater than the non-PSG nights.

Association of sleep-disordered breathing, sleep apnea, and hypertension in a large community-based study. Sleep Heart Health Study.

The findings from the largest cross-sectional study to date indicate that SDB is associated with systemic hypertension in middle-aged and older individuals of different sexes and ethnic backgrounds.