Literaturdatenbank
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Rooney, M. B., Levine, G., Gaynor, J., Macdonald, E., & Wimsatt, J. (1999). Sevoflurane anesthesia in desert tortoises (gopherus agassizii). Journal of Zoo and Wildlife Medicine, 30(1), 64–69.
Added by: Admin (14 Aug 2008 22:46:54 UTC) |
| Resource type: Journal Article BibTeX citation key: Rooney1999 View all bibliographic details  |
Categories: General Keywords: Gopherus, Gopherus agassizii, Schildkröten = turtles + tortoises, Testudinidae, Untersuchungsmethoden = examination method, Veterinärmedizin = veterinary medicine Creators: Gaynor, Levine, Macdonald, Rooney, Wimsatt Collection: Journal of Zoo and Wildlife Medicine |
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| Abstract |
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Gopherus agassizii Testudinidae The effects of sevoflurane on anaesthesia induction, recovery, ventricular pressures, heart rate, ventricular pH, blood gas values and electrolytes were evaluated in desert tortoises. Six tortoises were orotracheally intubated while awake and ventilated manually with 3-7% sevoflurane in oxygen (1 litre/min). Data, consisting of induction time, recovery time, systolic, diastolic and mean ventricular pressures, heart rate, ventricular pH, blood gas values and electrolytes, were collected before anaesthesia and again at 2.50% and 3.75% expired sevoflurane, measured at the junction of the endotracheal tube and the breathing circuit. Blood pressure was measured and blood samples were collected through a 25-gauge needle passed through a cardiac access port. Mean induction time was 2.55 plus or minus 0.55 min, recovery time 27.58 plus or minus 7.55 min and duration of anaesthesia 105 plus or minus 12 min. Mean values for systolic, diastolic and mean ventricular pressures in awake tortoises were 28 plus or minus 3 mmHg, 22 plus or minus 2 mmHg and 24 plus or minus 2 mmHg, respectively. Sevoflurane (2.5% expired) significantly decreased systolic (14 plus or minus 3 mm Hg), diastolic (12 plus or minus 1 mm Hg) and mean (13 plus or minus 1 mm Hg) ventricular pressures compared with those of awake tortoises. Ventricular pressures did not decrease further with increasing depth of anaesthesia. Heart rate (32 plus or minus 4 beats/min) did not change significantly under sevoflurane anaesthesia. Sevoflurane administration increased ventricular PO2 but did not change Na+, K+, or ionized Ca++ concentrations. It is concluded that sevoflurane provides safe and effective anaesthesia with rapid induction and recovery.
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