Proof of concept of the efficacy of the prototype device "Automatic Cycler for Resuscitator" in an adult swine
DOI:
https://doi.org/10.14409/favecv.v20iSuppl..11068Abstract
In this study, the safety and functionality of the prototype device “Automatic Cycler for Resuscitator” (ACR) was evaluated in a proof of concept in a swine with similar weight to that of an adult human. Tidal volumes of 5.8, 7 and 9.7 ml/kg were studied for positive pressures at the end of expiration (PPEE) of 5, 10 and 15 cmH2O. Indicative parameters of the homeostatic state of the animal were obtained through a multiparameter monitor and EPOC® blood biochemical analysis system. The parameters were kept within normal physiological ranges when tidal volumes of 7 and 9.7 ml/kg were evaluated. However, the tidal volume of 5.8 ml/kg was not sufficient to maintain adequate ventilation and it was manifested by hypercapnia and a drop in pH. As a general conclusion, we inferred that with adaptations in the ventilation patterns (7 and 9.7 ml/kg), the use of the ACR prototype can keep the animal alive for 24 h, preserving its homeostasis.
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