Analyses of breath-by-breath responses of ventilation to CO 2 employing V-PCO 2 loops.

Abstract:

:Computer techniques were employed to construct a respiratory control model in which the variables treated were programmed according to a series of mathematical equations, with the purpose of eliciting the relationship of V-PCO2 (minute ventilation-partial pressure of carbon dioxide) on a transient time basis. It was discovered that the transient V-PCO2 relationship has the shape of a loop half of which is for on-CO2 and the other half for off-CO2. Breath-by-breath ventilation was calculated by means of a home-made computer and the V-PCO2 relationship was monitored on an XY plotter. The transient V-PCO2 course also showed a loop which was quite similar in the general shape to the one traced employing theoretical analysis with an analog computer. This V-PCO2 loop may have potential usefulness to reveal mechanisms of respiratory control which may not be shown by the conventional V-PCO2 response curves.

authors

Kao FF,Babich AM,Mei SS,Wang C

subject

Has Abstract

pub_date

1973-01-01 00:00:00

pages

164-75

issue

1

eissn

0065-1400

issn

1689-0035

journal_volume

33

pub_type

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