Objective: To explore the correlation between neurocognitive function and sleep structure in male patients with obstructive sleep apnea hypopnea syndrome(OSAHS). Methods: 66 OSAHS male patients and 38 controls matched for age, gender and educational level were recruited using case-control study design. Montreal cognitive assessment scale(MoCA), Wechsler adult memory scale(WMS), Wisconsin Card Sorting Test(WCST), Stroop color-word test(SCWT), Epworth sleepiness scale(ESS) and overnight polysomnography test(PSG) were administered and analyzed. Results: OSAHS patients exhibited significant deficits in MoCA, WMS, WCST and SCWT performance. Compared with controls, OSAHS patients in EES score was significantly higher, while sleep efficiency, time ratio of non-rapid eye movement(NREM) 2 sleep and rapid eye movement(REM) sleep in patients were significantly lower, and latency of REM was significantly shorter(Ps<0.05-0.01). The neurocognitive impairment in OSAHS patients is significantly associated with lower sleep efficiency. Conclusion: The patients with OSAHS have widespread neurocognitive dysfunctions, which is associated with sleep structure.
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