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. 2012 Aug 28;79(9):929-36.
doi: 10.1212/WNL.0b013e318266fa9d. Epub 2012 Aug 15.

Sleep-disordered breathing in multiple sclerosis

Tiffany J Braley  1 , Benjamin M Segal, Ronald D Chervin
Affiliations

Sleep-disordered breathing in multiple sclerosis

Tiffany J Braley et al. Neurology. .

Abstract

Background: The objectives of this cross-sectional study were to assess the prevalence and severity of sleep apnea in patients with multiple sclerosis (MS) referred for overnight polysomnography (PSG) and to explore the radiographic and clinical features that might signal risk for undiagnosed sleep apnea.

Methods: Apnea-hypopnea (AHI) and central apnea indices (CAI) from laboratory-based PSG among 48 patients with MS were compared with those of group A, 84 sleep laboratory-referred patients without MS matched for age, gender, and body mass index; and group B, a separate group of 48 randomly selected, referred patients.

Results: Mean AHI was higher among patients with MS than among control groups A or B (2-way analysis of variance and multiple linear regression, p = 0.0011 and 0.0118, respectively). Median and mean CAI were also increased among patients with MS in comparison to control groups (Wilcoxon signed rank and multiple linear regression, p = 0.0064 and 0.0027, respectively). Among MS patients with available data, those with evidence of brainstem involvement, compared with groups A and B, showed particularly robust differences in AHI (p = 0.0060 and 0.0016) and CAI (p = 0.0215 and <0.0001). In contrast, MS patients without brainstem involvement, compared with groups A and B, showed diminished differences in AHI, and CAI did not significantly differ among groups.

Conclusions: These data suggest a predisposition for obstructive sleep apnea and accompanying central apneas among patients with MS, particularly among those with brainstem involvement.

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Figures

Figure
Figure. Boxplots of AHI and CAI for patients with MS, stratified by the presence or absence of brainstem involvement and their matched controls
(A) AHI for 20 patients with MS with brainstem involvement vs 40 matched controls (groups 1 and 2), and 16 patients with MS without brainstem involvement vs 32 matched controls (groups 3 and 4). (B) CAI for 20 patients with MS with brainstem involvement vs 40 matched controls (groups 1 and 2) and 16 patients with MS without brainstem involvement vs 32 matched controls (groups 3 and 4). AHI = apnea-hypopnea index; CAI = central apnea index; MS = multiple sclerosis.
See this image and copyright information in PMC

Comment in

  • Sleep, behavioral rhythms, and neurological disease.
    Johnston JA, Robertson NP. Johnston JA, et al. J Neurol. 2012 Dec;259(12):2761-3. doi: 10.1007/s00415-012-6742-9. J Neurol. 2012. PMID: 23161458 No abstract available.
  • Sleep-disordered breathing in multiple sclerosis.
    Beran RG, Braley TJ, Segal BM, Chervin RD. Beran RG, et al. Neurology. 2013 Apr 2;80(14):1354-5. doi: 10.1212/01.wnl.0000428978.31271.8a. Neurology. 2013. PMID: 23547270 No abstract available.
  • Author response.
    Braley TJ, Segal BM, Chervin RD. Braley TJ, et al. Neurology. 2013 Apr 2;80(14):1355. Neurology. 2013. PMID: 23667913 No abstract available.

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