Comparison of disposable circle and ‘to‐and‐fro’ breathing systems during anaesthesia in dogs
| Autor: | J. M. L. Hughes |
|---|---|
| Rok vydání: | 1998 |
| Předmět: |
medicine.medical_specialty
Atmospheric pollution chemistry.chemical_compound Dogs Capnography Heart Rate Respiration Heart rate medicine Anesthesia Obstetrical Animals Small Animals business.industry Breathing system Surgery Mean blood pressure chemistry Anesthesia Anesthetics Inhalation Carbon dioxide Breathing Halothane Anesthesia Inhalation business medicine.drug |
| Zdroj: | Journal of Small Animal Practice. 39:416-420 |
| ISSN: | 1748-5827 0022-4510 |
| DOI: | 10.1111/j.1748-5827.1998.tb03747.x |
| Popis: | Low-flow anaesthesia is beneficial in terms of reducing atmospheric pollution with waste anaesthetics and improving economy. This study compared a disposable circle and a 'to-and-fro' breathing system at low fresh gas flows (10 ml/kg/minute) in 19 dogs undergoing ovariohysterectomy. Ten dogs were assigned to the circle and nine to the to-and-fro breathing system. Fractional inspired halothane, end-tidal carbon dioxide and halothane were higher and mean blood pressure was lower in dogs using the to-and-fro system, possibly indicating an increased anaesthetic depth in this group. Use of both systems resulted in an elevated inspired carbon dioxide level, although this was significantly lower in the circle system. Further work will be required to determine the clinical relevance of this difference and whether rebreathing can be eliminated by higher fresh gas flows. The disposable circle studied may be used safely in dogs. |
| Databáze: | OpenAIRE |
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