Respiratory-Induced Hemodynamic Changes Measured by Whole-Body Multichannel Impedance Plethysmography

0494095 - ÚPT 2019 RIV CZ eng J - Journal Article
Langer, Peter - Jurák, Pavel - Vondra, Vlastimil - Halámek, Josef - Měšťaník, M. - Tonhajzerová, I. - Viščor, Ivo - Soukup, L. - Matějková, M. - Závodná, E. - Leinveber, Pavel
Respiratory-Induced Hemodynamic Changes Measured by Whole-Body Multichannel Impedance Plethysmography.
Physiological Research. Roč. 67, č. 4 (2018), s. 571-581. ISSN 0862-8408. E-ISSN 1802-9973
R&D Projects: GA MŠMT(CZ) LO1212
Institutional support: RVO:68081731
Keywords : bioimpedance * blood flow * blood volume * pulse wave velocity * respiration
OECD category: Medical laboratory technology (including laboratory samples analysis
Impact factor: 1.701, year: 2018

The cardiovascular system is described by parameters including blood flow, blood distribution, blood pressure, heart rate and pulse wave velocity. Dynamic changes and mutual interactions of these parameters are important for understanding the physiological mechanisms in the cardiovascular system. The main objective of this study is to introduce a new technique based on parallel continuous bioimpedance measurements on different parts of the body along with continuous blood pressure, ECG and heart sound measurement during deep and spontaneous breathing to describe interactions of cardiovascular parameters. Our analysis of 30 healthy young adults shows surprisingly strong deep-breathing linkage of blood distribution in the legs, arms, neck and thorax. We also show that pulse wave velocity is affected by deep breathing differently in the abdominal aorta and extremities. Spontaneous breathing does not induce significant changes in cardiovascular parameters.
Permanent Link: http://hdl.handle.net/11104/0287325