Impact of obstructive sleep apnea on silent cerebral small vessel disease: a systematic review and meta-analysis

Anthipa Chokesuwattanaskul1, Ploypin Lertjitbanjong2, Charat Thongprayoon3

  • 1Division of Neurology, Faculty of Medicine, Chulalongkorn University and King Chulalongkorn Memorial Hospital, Bangkok, Thailand; King Chulalongkorn Memorial Hospital, Thai Red Cross Society, Bangkok, Thailand.

Sleep Medicine
|February 7, 2020
PubMed

Insights

Obstructive sleep apnea (OSA) is linked to cerebral small vessel disease (CSVD) markers like white matter hyperintensity and lacunar infarction. This association highlights OSA as a potential contributor to vascular dementia risk in aging populations.

Area of Science:

  • Neurology
  • Cardiology
  • Sleep Medicine

Background:

  • Cerebral small vessel disease (CSVD) is a major cause of vascular dementia in the elderly.
  • Obstructive sleep apnea (OSA) is a known cardiovascular risk factor.
  • The direct relationship between OSA and CSVD requires further elucidation.

Purpose of the Study:

  • To investigate the association between obstructive sleep apnea (OSA) and cerebral small vessel disease (CSVD).

Main Methods:

  • A systematic review and meta-analysis of 14 observational studies.
  • Included 4335 patients comparing those with and without OSA.
  • Utilized random-effect, generic inverse variance method for effect estimation.

Main Results:

  • Patients with OSA showed a significant association with white matter hyperintensity (WMH) (OR 2.31) and asymptomatic lacunar infarction (ALI) (OR 1.78).
  • No significant association was found between OSA and cerebral microbleeds (CMBs) (OR 2.15).
  • High heterogeneity (I² values) was noted in WMH and CMBs findings.

Conclusions:

  • OSA is associated with specific CSVD markers, including WMH and ALI.
  • The lack of association with CMBs may stem from imaging sensitivity or differing disease mechanisms.
  • Findings suggest OSA may contribute to the development of CSVD.
Abstract