Influence of setting on unattended respiratory monitoring in the sleep apnoea/hypopnoea syndrome

Abstract

The high demand for full polysomnography and the better quality of sleep at home are the main reasons for performing home sleep studies. Home respiratory monitoring has been evaluated in several studies, but the influence of setting on the results of unattended respiratory monitoring has not been assessed to date.Unattended monitoring of respiratory variables at home and in the sleep laboratory was conducted in 35 consecutive patients with suspected sleep apnoea/hypopnoea syndrome. Respiratory variables during sleep, rate of successful studies and patient preference were compared.The data acquisition failure rate was 2.8% in the sleep laboratory and 5.7% at home. The mean difference between apnoea/hypopnoea indices (AHI) obtained from home and laboratory studies was -0.21¡8 (95% confidence interval 3.27-2.84). Using the method comparison approach of Bland and Altman, the limits of agreement of the mean difference between AHI home and AHI laboratory were -16.7 and 17.1. No difference was observed between the studies in time spent in different body positions. When patients were asked where they would prefer to repeat the sleep study, 53% replied at home, 28% in hospital and 19% showed no preference.It was concluded that the setting of unattended respiratory monitoring (home or sleep laboratory) influences neither the number of valid studies nor the results of the respiratory parameters measured; most patients, however, preferred home studies.

Home Unattended Portable Monitoring and Automatic CPAP Titration in Patients with High Risk for Moderate to Severe Obstructive Sleep Apnea

“…With regard to the diagnosis of OSA, although the PSG is the gold standard, 1 over the last decade it has widely been demonstrated that home portable monitoring is a valid and reliable test. 16,17 Furthermore, recently, the Portable Monitoring Task Force of the American Academy of Sleep Medicine recommended that portable monitoring should be limited to subjects with a high risk for moderate to severe OSA, 18 such as in our work. In agreement with the literature, 19 3% of the home portable monitoring was not reliable, with no significant differences between groups.…”

Insulin resistance is related to impaired lung function in morbidly obese women: a case–control study

“…In addition, a previously validated non-attended respiratory polygraphy was performed at the patients' homes with a Somnea polygraph (Compumedics, Abbotsford, Australia) [21,22]. Studies without 5 h of correct signal recording were ruled out and repeated.…”

Effect of an ambulatory diagnostic and treatment programme in patients with sleep apnoea

“…The diagnosis of OSAS using a simplified methodology in the home has been shown to be valid [13][14][15]. Although the PSG continues to be the gold standard for diagnosis [11], unsupervised ambulatory RP is accepted in patients with a high probability of OSAS [39].…”

“…Respiratory polygraphy (RP) is a cheaper and more accessible test and correlates well with PSG [13][14][15]. Home-based diagnostic strategies based on simple automated evaluation and treatment systems have also been proposed [16].…”