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Cognitive impairment in obstructive sleep apnea syndrome: a descriptive review

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Abstract

Purpose

Obstructive sleep apnea syndrome is a clinical sleep disorder defined by total or partial airflow restraint during sleep that results in fragmented sleep and hypoxemia, impacting negatively with cognitive functioning. This review was conducted on studies investigating structural brain alteration and cognitive impairment in obstructive sleep apnea syndrome.

Method

We searched on PubMed databases and screening references of included studies and review articles for additional citations. From initial 190 publications, only 17 met search criteria and described the cognitive impairment in obstructive sleep apnea syndrome.

Results

Findings showed that patients with this syndrome had worse performance than healthy controls in attention, memory, and executive functions, showing specific neuroanathomical features. Cognitive impairment is also related to the severity of pathology. Treatment could improve certain cognitive aspects.

Conclusions

Cognitive deficits seem to be mainly attributable to decreased daytime vigilance and nocturnal hypoxemia.

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Authors and Affiliations

  1. IRCCS Centro Neurolesi “Bonino-Pulejo”, S.S. 113 Via Palermo, C.da Casazza, 98124, Messina, Italy

    Mina Caporale, Rosanna Palmeri, Francesco Corallo, Nunzio Muscarà, Laura Romeo, Alessia Bramanti, Silvia Marino & Viviana Lo Buono

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  1. Mina Caporale
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  2. Rosanna Palmeri
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  3. Francesco Corallo
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Correspondence to Rosanna Palmeri.

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Caporale, M., Palmeri, R., Corallo, F. et al. Cognitive impairment in obstructive sleep apnea syndrome: a descriptive review. Sleep Breath 25, 29–40 (2021). https://doi.org/10.1007/s11325-020-02084-3

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