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dc.contributor.authorSolà Soler, Jordi
dc.contributor.authorGiraldo Giraldo, Beatriz
dc.contributor.authorFiz Fernández, José Antonio
dc.contributor.authorJané Campos, Raimon
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament d'Enginyeria de Sistemes, Automàtica i Informàtica Industrial
dc.date.accessioned2016-01-13T13:05:33Z
dc.date.issued2015
dc.identifier.citationSolà Soler, J., Giraldo, B., Fiz, J., Jane, R. Cardiorespiratory phase synchronization in OSA subjects during wake and sleep states. A: IEEE Engineering in Medicine and Biology Society. "PROCEEDINGS OF THE 37th ANNUAL INTERNATIONAL CONFERENCE OF THE IEEE EMBS". MILÀ: 2015.
dc.identifier.urihttp://hdl.handle.net/2117/81351
dc.description.abstractCardiorespiratory Phase Synchronization (CRPS) is a manifestation of coupling between cardiac and respiratory systems complementary to Respiratory Sinus Arrhythmia. In this work, we investigated CRPS during wake and sleep stages in Polysomnographic (PSG) recordings of 30 subjects suspected from Obstructive Sleep Apnea (OSA). The population was classified into three severity groups according to the Apnea Hypopnea Index (AHI): G1 (AHI<15), G2 (15<=AHI<30) and G3 (AHI>30). The synchrogram between single lead ECG and respiratory abdominal band signals from PSG was computed with the Hilbert transform technique. The different phase locking ratios (PLR) m:n were monitored throughout the night. Ratio 4:1 was the most frequent and it became more dominant as OSA severity increased. CRPS was characterized by the percentage of synchronized time (%Sync) and the average duration of synchronized epochs (AvDurSync) using three different thresholds. Globally, we observed that %Sync significantly decreased and AvDurSync slightly increased with OSA severity. A high synchronization threshold enhanced these population differences. %Sync was significantly higher in NREM than in REM sleep in G2 and G3 groups. Population differences observed during sleep did not translate to the initial wake state. Reduced CRPS could be an early marker of OSA severity during sleep, but further studies are needed to determine whether CRPS is also present during wakefulness.
dc.language.isoeng
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/3.0/es/
dc.subjectÀrees temàtiques de la UPC::Enginyeria biomèdica
dc.subject.lcshElectronics in cardiology
dc.titleCardiorespiratory phase synchronization in OSA subjects during wake and sleep states
dc.typeConference report
dc.subject.lemacElectrònica en cardiologia
dc.contributor.groupUniversitat Politècnica de Catalunya. BIOSPIN - Biomedical Signal Processing and Interpretation
dc.rights.accessRestricted access - publisher's policy
local.identifier.drac16918049
dc.description.versionPostprint (published version)
dc.date.lift10000-01-01
local.citation.authorSolà Soler, J.; Giraldo, B.; Fiz, J.; Jane, R.
local.citation.contributorIEEE Engineering in Medicine and Biology Society
local.citation.pubplaceMILÀ
local.citation.publicationNamePROCEEDINGS OF THE 37th ANNUAL INTERNATIONAL CONFERENCE OF THE IEEE EMBS


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