Monitoring respiratory parameters as a health status indicator

N. F. Macia, L. J. Wesselius

Research output: Chapter in Book/Report/Conference proceedingConference contribution


This paper describes an ongoing effort aimed at exploring the use of respiratory parameters to assess the condition of the lungs and heart. These parameters will be measured with a novel noninvasive technique, the Quick Obstruction Method. The method measures respiratory parameters by creating a short duration, partial obstruction of the respiratory airflow during normal breathing (inspiration), while recording flow and mouth pressure. The specific parameter expected to contain relevant information about heart function is respiratory inertance, a parameter indicative of inertivetype effects manifested when flow rate is quickly increased or decreased. These inertivetype effects are found in: a) air in the airways, and b) respiratory apparatus (lung tissues, abdomen, chest wall, etc.). A patient experiencing heart failure (indicated by low ejection fraction as measured with the echo cardiogram), is expected to have lungs that are partially filled with fluid. We expect that the excess of fluid will be correlated to an increased respiratory inertance.

Original languageEnglish (US)
Title of host publicationV Latin American Congress on Biomedical Engineering, CLAIB 2011
Subtitle of host publicationSustainable Technologies for the Health of All
Number of pages4
StatePublished - Mar 20 2013
Event5th Latin American Congress on Biomedical Engineering, CLAIB 2011 - Habana, Cuba
Duration: May 16 2011May 21 2011

Publication series

NameIFMBE Proceedings
Volume33 IFMBE
ISSN (Print)1680-0737


Other5th Latin American Congress on Biomedical Engineering, CLAIB 2011


  • edema
  • heart
  • inertance
  • pulmonary resistance

ASJC Scopus subject areas

  • Bioengineering
  • Biomedical Engineering


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