Author(s): Tomsič Katerina, Nemec Svete Alenka, Nemec Ana, Domanjko Petrič Aleksandra, Vovk Tomaž, Seliškar Alenka
Keywords:dogs, myxomatous mitral valve disease, oxidative stress, propofol, sevoflurane
The aim of this study was to investigate the effects of total intravenous anaesthesia with propofol and anaesthesia induced with propofol and maintained with sevoflurane on oxidative stress parameters in dogs with early-stage myxomatous mitral valve degeneration (MMVD). Sixteen client-owned dogs with early stage MMVD that required periodontal treatment were included in the study. After induction with propofol, anaesthesia was maintained with propofol (group P) or sevoflurane (group PS). Blood samples for determination of vitamin E, superoxide dismutase, glutathione peroxidase and malondialdehyde were collected before premedication, 5 and 60 minutes and 6 hours after induction to anaesthesia. There were no significant differences between groups in any of the oxidative stress parameters at each sampling time. Compared to basal values, vitamin E concentration decreased significantly during anaesthesia in both groups and glutathione peroxidase activity increased 60 minutes after induction to anaesthesia in PS group. Anaesthesia with propofol or with propofol and sevoflurane did not have any significant impact on oxidative stress parameters in dogs with early stage MMVD. In terms of oxidative stress, both protocols may be equally safely used in dogs with early stage MMVD.
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