Prolonged partial obstruction during sleep is a NREM phenomenon.

Abstract:

OBJECTIVE:Prolonged partial obstruction (PPO) is a common finding in sleep studies. Although not verified, it seems to emerge in deep sleep. We study the effect of PPO on sleep architecture or sleep electroencephalography (EEG) frequency. METHODS:Fifteen OSA patients, 15 PPO + OSA patients and 15 healthy subjects underwent a polysomnography. PPO was detected from Emfit mattress signal. Visual sleep parameters and median NREM sleep frequency of the EEG channels were evaluated. RESULTS:The amount of deep sleep (N3) did not differ between the PPO + OSA and control groups (medians 11.8% and 13.8%). PPO + OSA-patients' N3 consisted mostly of PPO. PPO + OSA patients had lighter sleep than healthy controls in three brain areas (Fp2-A1, C4-A1, O1-A2, p-values < 0.05). CONCLUSION:PPO evolved in NREM sleep and especially in N3 indicating that upper airway obstruction does not always ameliorate in deep sleep but changes the type. Even if PPO + OSA-patients had N3, their NREM sleep was lighter in three EEG locations. This might reflect impaired recovery function of sleep.

authors

Himanen SL,Martikkala L,Sulkamo S,Rutanen A,Huupponen E,Tenhunen M,Saunamäki T

doi

10.1016/j.resp.2018.05.009

subject

Has Abstract

pub_date

2018-09-01 00:00:00

pages

43-49

eissn

1569-9048

issn

1878-1519

pii

S1569-9048(18)30112-5

journal_volume

255

pub_type

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