Evaluation of respiratory muscles activity by means of cross mutual information function at different levels of ventilatory effort.

Evaluation of respiratory muscles activity by means of cross mutual information function at different levels of ventilatory effort. Research Abstract Details 

Research Abstract Table of Contents

Jump to the:

Evaluation of respiratory muscles activity by means of cross mutual information function at different levels of ventilatory effort. Abstract Text:

Joan Francesc Alonso,Miguel A ,Dirk Hoyer,Zbigniew L Topor,Eugene N Bruce,

Analysis of respiratory muscles activity is an effective technique for the study of pulmonary diseases such as obstructive sleep apnea syndrome (OSAS). Respiratory diseases, especially those associated with changes in the mechanical properties of the respiratory apparatus, are often associated with disruptions of the normally highly coordinated contractions of respiratory muscles. Due to the complexity of the respiratory control, the assessment of OSAS related dysfunctions by linear methods are not sufficient. Therefore, the objective of this study was the detection of diagnostically relevant nonlinear complex respiratory mechanisms. Two aims of this work were: (1) to assess coordination of respiratory muscles contractions through evaluation of interactions between respiratory signals and myographic signals through nonlinear analysis by means of cross mutual information function (CMIF); (2) to differentiate between functioning of respiratory muscles in patients with OSAS and in normal subjects. Electromyographic (EMG) and mechanomyographic (MMG) signals were recorded from three respiratory muscles: genioglossus, sternomastoid and diaphragm. Inspiratory pressure and flow were also acquired. All signals were measured in eight patients with OSAS and eight healthy subjects during an increased respiratory effort while awake. Several variables were defined and calculated from CMIF in order to describe correlation between signals. The results indicate different nonlinear couplings of respiratory muscles in both populations. This effect is progressively more evident at higher levels of respiratory effort.

Evaluation of respiratory muscles activity by means of cross mutual information function at different levels of ventilatory effort. Publishing Authors By Initials

JF Alonso,MA ,D Hoyer,ZL Topor,EN Bruce,

For similar respiratory tract diseases: respiration disorders: apnea: sleep apnea syndromes: sleep apnea, obstructive research abstracts see: respiratory tract diseases: respiration disorders: apnea: sleep apnea syndromes: sleep apnea, obstructive research

PUBMED ID PMID:

MEDLINE DATE:

Evaluation of respiratory muscles activity by means of cross mutual information function at different levels of ventilatory effort. Journal Published:

PUBLICATION TYPE: Research Support, Non-U.S. Gov

Journal: IEEE transactions on bio-medical engineering

VOLUME: 54

Page Numbers: 1573-82

Journal Abbreviation:

ISSN: 0018-9294

DAY: 3

MONTH: Sep

YEAR: 2007

Evaluation of respiratory muscles activity by means of cross mutual information function at different levels of ventilatory effort. Information

Number of References:

LANGUAGE: eng

NlmUniqueID: 12737

Evaluation of respiratory muscles activity by means of cross mutual information function at different levels of ventilatory effort. Keywords Mesh Terms:

KEYWORDS: Sleep Apnea, Obstructive

MESH TERMS: physiopathology

Chemical & Substance for Abstract: Evaluation of respiratory muscles activity by means of cross mutual information function at different levels of ventilatory effort. Information

Substance Name:

Registry Number:

Grant and Affiliation Information for Evaluation of respiratory muscles activity by means of cross mutual information function at different levels of ventilatory effort.

AFFILIATION: Department of Automatic Control, Biomedical Engineering Research Center, Technical University of Catalonia (UPC), 5th Pau Gargalo St., E-08028 Barcelona, Spain. joan.francesc.alonso@upc.edu

Country: United States

AGENCY: United States NHLBI

GRANT: HL40369

ACRONYM: HL

MEDLINETA: IEEE Trans Biomed Eng

REFSOURCE:

DATABASENAME:

ACCESSION NUMBER:

Number Hits: 0

Evaluation of respiratory muscles activity by means of cross mutual information function at different levels of ventilatory effort Related Publications

• Are patient expectations still relevant for psychotherapy process and outcome?
• Diabetes, depression, and death: a randomized controlled trial of a depression treatment program for older adults based in primary care (PROSPECT).
• Digital Mammogram Spiculated Mass Detection and Spicule Segmentation using Level Sets.
• Digital Mammographic Computer Aided Diagnosis (CAD) using Adaptive Level Set Segmentation.
• Disasters, social forces, and opportunities.
• Endothelium-independent Vasorelaxant Effect of the Phyto-oestrogen Biochanin A on Rat Thoracic Aorta.
• Evaluation of low energy CID and ECD fragmentation behavior of mono-oxidized thio-ether bonds in peptides.
• Evaluation of respiratory muscles activity by means of cross mutual information function at different levels of ventilatory effort.
• Evidence for schema theory from surface electromyography: an artificial neural network approach.
• Exploring the biochemical properties and remediation applications of the unusual explosive-degrading P450 system XplA/B.
• Getting to the heart of cardiomyopathies.
• Healing by primary versus secondary intention after surgical treatment for pilonidal sinus.
• Improvement of Ventricular Mechanical Properties by Puerarin Involves Mitochondrial Permeability Transition in Isolated Rat Heart during Ischemia and Reperfusion.
• Inhibition of Mitochondrial Permeability Transition Pore: A Possible Mechanism for Cardioprotection Conferred by Pretreatment with Tanshinone IIA.
• Level set-based core segmentation of mammographic masses facilitating three stage (core, periphery, spiculation) analysis.
• Mass spectrometry identifiable cross-linking strategy for studying protein-protein interactions.
• Near IR-emitting DNA-probes exploiting stepwise energy transfer processes.
• Neurovascular complications following percutaneous tendoachillis tenotomy for congenital idiopathic clubfoot.
• Photoprotection in the lichen Parmelia sulcata: the origins of desiccation-induced fluorescence quenching.
• Role of preoperative arthrography in early Perthes disease as a decision-making tool. Is it really necessary?
• Social support and suicidal ideation in older adults using home healthcare services.
• Suicidal ideation among elderly homecare patients.
• Synthesis of asymmetrically substituted cyclen-based ligands for the controlled sensitisation of lanthanides.
• Targeting the brain: rationalizing the novel methods of drug delivery to the central nervous system.
• The effect of a primary care practice-based depression intervention on mortality in older adults: a randomized trial.
• The physical characteristics of materials used in the manufacture of orthoses for patients with diabetes.
• Transition to home care: quality of mental health, pharmacy, and medical history information.
• Treating late-life depression with interpersonal psychotherapy in the primary care sector.
• Urban poverty and infant mortality rate disparities.
• What is your diagnosis? Type 1 Monteggia fracture.