Influence of respiration in the very low frequency modulation of QRS slopes and heart rate variability in cardiomyopathy patients

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To access the full text documents, please follow this link: http://hdl.handle.net/2117/22464

dc.contributor	Universitat Politècnica de Catalunya. Departament d'Enginyeria de Sistemes, Automàtica i Informàtica Industrial
dc.contributor	Institut de Bioenginyeria de Catalunya
dc.contributor	Universitat Politècnica de Catalunya. SISBIO - Senyals i Sistemes Biomèdics
dc.contributor.author	Hernando, David
dc.contributor.author	Alcaine, A
dc.contributor.author	Pueyo, Esther
dc.contributor.author	Laguna, Pablo
dc.contributor.author	Arcentales, Andrés
dc.contributor.author	Giraldo Giraldo, Beatriz
dc.contributor.author	Voss, Andreas
dc.contributor.author	Bayés-Genís, Antoni
dc.contributor.author	Bailón, Raquel
dc.date	2013
dc.identifier.citation	Hernando, D. [et al.]. Influence of respiration in the very low frequency modulation of QRS slopes and heart rate variability in cardiomyopathy patients. A: Computing in Cardiology. "Computing in Cardiology 2013, Volume 40". Zaragoza: 2013, p. 117-120.
dc.identifier.uri	http://hdl.handle.net/2117/22464
dc.language.iso	eng
dc.relation	http://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=6712425
dc.rights	Attribution-NonCommercial-NoDerivs 3.0 Spain
dc.rights	info:eu-repo/semantics/openAccess
dc.rights	http://creativecommons.org/licenses/by-nc-nd/3.0/es/
dc.subject	Àrees temàtiques de la UPC::Ciències de la salut
dc.subject	Àrees temàtiques de la UPC::Informàtica::Automàtica i control
dc.subject	Cardiologia
dc.subject	Respiració -- Mesurament
dc.title	Influence of respiration in the very low frequency modulation of QRS slopes and heart rate variability in cardiomyopathy patients
dc.type	info:eu-repo/semantics/publishedVersion
dc.type	info:eu-repo/semantics/conferenceObject
dc.description.abstract	This work investigates the very low frequency (VLF) modulation of QRS slopes and heart rate variability (HRV). Electrocardiogram (ECG) and respiratory flow signal were acquired from patients with dilated cardiomyopathy and ischemic cardiomyopathy. HRV as well as the upward QRS slope (IUS) and downward QRS slope (IDS) were extracted from the ECG. The relation between HRV and QRS slopes in the VLF band was measured using ordinary coherence in 5-minute segments. Partial coherence was then used to remove the influence that respiration simultaneously exerts on HRV and QRS slopes. A statistical threshold was determined, below which coherence values were considered not to represent a linear relation.

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