{"doi":"10.1016/j.resp.2018.05.009","title":"Prolonged partial obstruction during sleep is a NREM phenomenon","abstract":null,"journal":"Respiratory Physiology &amp; Neurobiology","year":2018,"id":597266,"datarank":0.16479184330021646,"base_score":1.0986122886681096,"endowment":1.0986122886681096,"self_citation_contribution":0.16479184330021646,"citation_network_contribution":0.0,"self_endowment_contribution":0.16479184330021646,"citer_contribution":0.0,"corpus_percentile":null,"corpus_rank":null,"citation_count":2,"citer_count":0,"citers_with_citation_signal":0,"citers_with_endowment":0,"datacite_reuse_total":0,"is_dataset":false,"is_dataset_confidence":null,"is_data_producer":false,"deposit_databanks":null,"is_oa":false,"file_count":0,"downloads":0,"has_version_chain":false,"published_date":null,"fair_score":null,"fair_percentile":null,"algorithm_id":"datarank_citation_only_1hop_v6","ranking_scope":"data_only","authors":[{"id":1530106,"name":"Lauri Martikkala","orcid":null,"position":1,"is_corresponding":false},{"id":1530107,"name":"Saramia Sulkamo","orcid":null,"position":2,"is_corresponding":false},{"id":1530108,"name":"Antti Rutanen","orcid":null,"position":3,"is_corresponding":false},{"id":1530109,"name":"Eero Huupponen","orcid":null,"position":4,"is_corresponding":false},{"id":1530110,"name":"Mirja Tenhunen","orcid":null,"position":5,"is_corresponding":false},{"id":1530111,"name":"Tiia Saunamäki","orcid":null,"position":6,"is_corresponding":false},{"id":1530105,"name":"Sari-Leena Himanen","orcid":"0000-0003-0175-590X","position":0,"is_corresponding":false}],"reference_count":0,"raw_metadata":{"has_enrichment":true,"resolved":true,"title":"Prolonged partial obstruction during sleep is a NREM phenomenon.","abstract":"<h4>Objective</h4>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.<h4>Methods</h4>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.<h4>Results</h4>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).<h4>Conclusion</h4>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.","is_dataset_classified":null,"base_score":0.0,"endowment":0.0,"datacite_reuse_total":0,"file_count":0,"downloads":0,"views":0,"has_version_chain":false,"is_dataset":false,"is_oa":false,"pmid":"29803760","pmcid":null,"openalex_id":null,"authors":[],"funders":[{"funder_name":"Competitive Research Financing of the Expert Responsibility area of Tampere University Hospital","grant_id":"9T008","title":null},{"funder_name":"Competitive Research Financing of the Expert Responsibility area of Tampere University Hospital","grant_id":"9M014","title":null},{"funder_name":"Competitive Research Financing of the Expert Responsibility area of Tampere University Hospital","grant_id":"9S007","title":null},{"funder_name":"Competitive Research Financing of the Expert Responsibility area of Tampere University Hospital","grant_id":"9P013","title":null},{"funder_name":"Tekes","grant_id":"1860","title":null},{"funder_name":"Competitive Research Financing of the Expert Responsibility area of Tampere University Hospital","grant_id":"9R007","title":null},{"funder_name":"National Technology Agency of Finland","grant_id":"","title":null}],"total_grants":7,"fwci":null,"citation_percentile":null,"influential_citations":0,"citation_trend":[],"oa_status":"closed","license":null,"oa_locations":[],"fields_of_study":[],"mesh_terms":["Brain","Humans","Sleep Apnea Syndromes","Electroencephalography","Polysomnography","Sleep Stages","Adult","Aged","Middle Aged","Female","Male"],"keywords":["Osa","Sleep Eeg","Sleep-disordered Breathing","Partial Obstruction","Flow Limitation","Emfit","Breathing Effort"],"sdg_mappings":[],"linked_datasets":[],"clinical_trials":[],"software_tools":[],"database_accessions":[],"source":"live","citation_network_status":"fetched"},"created_at":"2026-07-28T12:46:39.093520Z","pmid":null,"pmcid":null,"fwci":null,"citation_percentile":null,"influential_citations":0,"oa_status":null,"license":null,"views":0,"total_file_size_bytes":0,"version_count":0,"fair_f":null,"fair_a":null,"fair_i":null,"fair_r":null,"fair_zscore":null,"fair_rationale":null,"fair_model":null,"fair_agent_version":null,"fair_fulltext_source":null,"fair_has_llm":null,"fair_computed_at":null,"clinical_trials":[],"software_tools":[],"db_accessions":[],"linked_datasets":[],"topics":[]}