Relation between end-tidal and arterial carbon dioxide partial pressure during general anaesthesia with spontaneous breathing and controlled ventilation in dogs: An experimental study | Zendy

Peter Kruljc | Zendy; Nemec Alenka | Zendy; Vintar Neli | Zendy; J. Butinar | Zendy

Open Access

Relation between end-tidal and arterial carbon dioxide partial pressure during general anaesthesia with spontaneous breathing and controlled ventilation in dogs: An experimental study

Author(s) -

Peter Kruljc,

Nemec Alenka,

Vintar Neli,

J. Butinar

Publication year - 2003

Publication title -

acta veterinaria

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.308

H-Index - 17

eISSN - 1820-7448

pISSN - 0567-8315

DOI - 10.2298/avb0306283k

Subject(s) - anesthesia , ventilation (architecture) , medicine , general anaesthesia , tidal volume , respiratory minute volume , beagle , arterial blood , respiratory rate , heart rate , blood pressure , hemodynamics , controlled ventilation , respiratory system , respiration , carbon dioxide , chemistry , mechanical engineering , organic chemistry , engineering , anatomy

The aim of the study was to assess the value of capnometry during anaesthesia with spontaneous breathing and controlled ventilation in dogs free of pulmonary disease. Ten beagle dogs were included in the study. End-tidal carbon dioxide (ETCO2), minute respiratory volume (ME), heart rate and arterial blood gases were measured. The correlation between ETCO2 and PaCO2 was positive and statistically significant in both types of general anaesthesia. ME was negatively correlated with ETCO2 and PaCO2, although this was statistically significant only during controlled ventilation. The PaCO2 – ETCO2 gradient increased significantly comparing to the awake state during the experiment with controlled ventilation indicating haemodynamic depression as a consequence of deepening of anaesthesia. The results of the study demonstrated that capnometry can noninvasively provide valuable information about changes in minute respiratory volume and arterial blood gases during general anaesthesia with spontaneous breathing and controlled ventilation in dogs free of pulmonary disease. Comparable literature data imply that capnometry is equally useful in other animal species

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