Dynamic Changes of Perfusion Index During Hypoxemia and Hypercapnia in Outdoor Experiments

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21460%2F21%3A00354011" target="_blank" >RIV/68407700:21460/21:00354011 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1109/EHB52898.2021.9657719" target="_blank" >http://dx.doi.org/10.1109/EHB52898.2021.9657719</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1109/EHB52898.2021.9657719" target="_blank" >10.1109/EHB52898.2021.9657719</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Dynamic Changes of Perfusion Index During Hypoxemia and Hypercapnia in Outdoor Experiments

Popis výsledku v původním jazyce

Perfusion index (PI) derived from pulse oximetry is a well-recognized parameter for assessment of perfusion changes in peripheral tissues under different conditions. In outdoor breathing experiments with simulated avalanche snow, the subjects experience hypoxemia and hypercapnia due to significant rebreathing of the exhaled gas. In order to assess the behavior of the perfusion index during short-time hypoxemia and hypercapnia in these experiments, data from 13 healthy volunteers breathing into materials simulating avalanche snow were analyzed. The baseline perfusion index of the subjects at rest was 1.54 +/- 1.01. In the course of the experiment, despite the progressing hypoxemia and hypercapnia, there are no statistically significant changes in PI observed, followed by a rapid surge shortly after the subjects started to breathe ambient air and the hypercapnia prevailed over the vanishing hypoxemia. These results suggest that regardless of the hypoxemia and ambient environment, the perfusion of the peripheral tissues assessed by the pulse oximetry is sufficient during these experiments, presumably due to the vasodilatory effect of the hypercapnia.

Název v anglickém jazyce

Dynamic Changes of Perfusion Index During Hypoxemia and Hypercapnia in Outdoor Experiments

Popis výsledku anglicky

Perfusion index (PI) derived from pulse oximetry is a well-recognized parameter for assessment of perfusion changes in peripheral tissues under different conditions. In outdoor breathing experiments with simulated avalanche snow, the subjects experience hypoxemia and hypercapnia due to significant rebreathing of the exhaled gas. In order to assess the behavior of the perfusion index during short-time hypoxemia and hypercapnia in these experiments, data from 13 healthy volunteers breathing into materials simulating avalanche snow were analyzed. The baseline perfusion index of the subjects at rest was 1.54 +/- 1.01. In the course of the experiment, despite the progressing hypoxemia and hypercapnia, there are no statistically significant changes in PI observed, followed by a rapid surge shortly after the subjects started to breathe ambient air and the hypercapnia prevailed over the vanishing hypoxemia. These results suggest that regardless of the hypoxemia and ambient environment, the perfusion of the peripheral tissues assessed by the pulse oximetry is sufficient during these experiments, presumably due to the vasodilatory effect of the hypercapnia.

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

20601 - Medical engineering

Projekt

—

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2021

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

2021 International Conference on e-Health and Bioengineering (EHB)

ISBN

978-1-6654-4000-4

ISSN

2575-5137

e-ISSN

2575-5145

Počet stran výsledku

6

Strana od-do

—

Název nakladatele

IEEE Industrial Electronic Society

Místo vydání

Vienna

Místo konání akce

Iasi

Datum konání akce

18. 11. 2021

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

000802227900179