The measurement of nonelastic work of breathing using a commercially available respiratory integrator

G N Plost; S C Campbell; R T Vagedes; B Y Shon

The measurement of nonelastic work of breathing using a commercially available respiratory integrator

Biomed Instrum Technol. 1990 Mar-Apr;24(2):119-21.

Authors

G N Plost¹, S C Campbell, R T Vagedes, B Y Shon

Affiliation

¹ Division of Respiratory Sciences, University of Arizona College of Medicine, Tucson.

PMID: 2322754

Abstract

The authors compared real-time, breath-by-breath work of breathing (WOB) measurements made with a Hewlett-Packard 8815A respiratory integrator with nonelastic WOB values obtained by planimetry of pressure-volume tracings. They measured WOB while normal subjects breathed through a low-resistane mouthpiece. The integrator-derived values for WOB correlated well with planimeter-derived values (r = 0.97). Valid measurements of nonelastic WOB can be made at the bedside in realtime using the Hewlett-Packard 8815A without the addition of custom-built circuitry or hardware.

Publication types

Research Support, U.S. Gov't, Non-P.H.S.

MeSH terms

Humans
Monitoring, Physiologic / instrumentation*
Reference Values
Work of Breathing / physiology*