Evaluation of Breathing Effort in Spontaneously Breathing Subjects
Problems of Measurement and Evaluation of Breathing Effort in Spontaneously Breathing Subjects
The aim of the research project is to evaluate the breathing effort using the Work of Breathing (WoB) and Pressure-Time Product (PTP) parameters, depending on the increasing flow resistance. The research project is concerned with assessing the increased (imposed) breathing effort using the Work of Breathing (iWoB) and the Pressure-Time Product (iPTP).
The main hypothesis tested is the differential effect of flow resistance on iWoB and iPTP parameters in spontaneous breathing of healthy probands.
Studieoversigt
Status
Betingelser
Intervention / Behandling
Detaljeret beskrivelse
Undersøgelsestype
Tilmelding (Forventet)
Fase
- Ikke anvendelig
Kontakter og lokationer
Studiesteder
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Czech Republic
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Kladno, Czech Republic, Tjekkiet, 27201
- Rekruttering
- Department of Biomedical Technology Faculty of Biomedical Engineering Czech Technical University in Prague
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Kontakt:
- Karel Roubík, Prof.
- Telefonnummer: +420 603 479 901
- E-mail: roubik@fbmi.cvut.cz
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Kontakt:
- Anna Miltová
- Telefonnummer: +420 774 670 233
- E-mail: anna.miltova@fbmi.cvut.cz
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Deltagelseskriterier
Berettigelseskriterier
Aldre berettiget til at studere
Tager imod sunde frivillige
Køn, der er berettiget til at studere
Beskrivelse
Inclusion Criteria:
- Healthy males and females > 18 and < 40 years old
- Signed informed consent has been obtained
Exclusion Criteria:
- Respiratory disease
- Pregnancy
- Cardiovascular disease
- Diabetes mellitus
Studieplan
Hvordan er undersøgelsen tilrettelagt?
Design detaljer
- Primært formål: Grundvidenskab
- Tildeling: N/A
- Interventionel model: Enkelt gruppeopgave
- Maskning: Ingen (Åben etiket)
Våben og indgreb
Deltagergruppe / Arm |
Intervention / Behandling |
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Eksperimentel: Breathing through a system with adjustable flow resistance
During the experiment, the volunteers will breathe through ten adjustable flow resistances and their work of breathing will be measured.
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The proband will breathe through the adjustable flow resistance within the experiment, to which a standard D-lite Flow sensor will be connected, and the airway pressure, flow, minute consumption, oxygen and carbon dioxide, tidal volume, oxygen saturation of peripheral blood and oxygen and carbon dioxide concentrations in both inspired and expired air will be recorded using the Datex-Ohmeda S/5 Patient Monitor vital signs monitor. The proband will breathe through the flow resistors in a randomized order, and pre-defined three-minute pauses will be maintained between measurements with different flow resistance values. Each measurement will take approximately two minutes and will be measured on ten different flow resistances. |
Hvad måler undersøgelsen?
Primære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
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iWoB
Tidsramme: through study completion, an average of 1 year
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imposed work of breathing in J/s/L
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through study completion, an average of 1 year
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iPTP
Tidsramme: through study completion, an average of 1 year
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imposed pressure time product in Pa.s/L
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through study completion, an average of 1 year
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Samarbejdspartnere og efterforskere
Efterforskere
- Studieleder: Karel Roubik, Prof., Czech Technical University in Prague, Fac. of Biomedical Engineering
Publikationer og nyttige links
Generelle publikationer
- Bellani G, Pesenti A. Assessing effort and work of breathing. Curr Opin Crit Care. 2014 Jun;20(3):352-8. doi: 10.1097/MCC.0000000000000089.
- Collett PW, Perry C, Engel LA. Pressure-time product, flow, and oxygen cost of resistive breathing in humans. J Appl Physiol (1985). 1985 Apr;58(4):1263-72. doi: 10.1152/jappl.1985.58.4.1263.
- de Vries H, Jonkman A, Shi ZH, Spoelstra-de Man A, Heunks L. Assessing breathing effort in mechanical ventilation: physiology and clinical implications. Ann Transl Med. 2018 Oct;6(19):387. doi: 10.21037/atm.2018.05.53.
- Dodd DS, Kelly S, Collett PW, Engel LA. Pressure-time product, work rate, and endurance during resistive breathing in humans. J Appl Physiol (1985). 1988 Apr;64(4):1397-404. doi: 10.1152/jappl.1988.64.4.1397.
- Cabello B, Mancebo J. Work of breathing. Intensive Care Med. 2006 Sep;32(9):1311-4. doi: 10.1007/s00134-006-0278-3. Epub 2006 Jul 13. No abstract available.
Datoer for undersøgelser
Studer store datoer
Studiestart (Faktiske)
Primær færdiggørelse (Forventet)
Studieafslutning (Forventet)
Datoer for studieregistrering
Først indsendt
Først indsendt, der opfyldte QC-kriterier
Først opslået (Faktiske)
Opdateringer af undersøgelsesjournaler
Sidste opdatering sendt (Faktiske)
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
Sidst verificeret
Mere information
Begreber relateret til denne undersøgelse
Yderligere relevante MeSH-vilkår
Andre undersøgelses-id-numre
- iWoBvsiPTP
Plan for individuelle deltagerdata (IPD)
Planlægger du at dele individuelle deltagerdata (IPD)?
IPD-planbeskrivelse
Lægemiddel- og udstyrsoplysninger, undersøgelsesdokumenter
Studerer et amerikansk FDA-reguleret lægemiddelprodukt
Studerer et amerikansk FDA-reguleret enhedsprodukt
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