Medetomidine-tiletamine-zolazepam in brown bears (Ursus arctos): Test of high doses in captive animals
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Treatment of hypoxemia during anesthesia of brown bears (Ursus arctos).
This study assessed whether arterial oxygenation could be increased by treatment with intranasal oxygen supplementation in brown bears (Ursus arctos) with hypoxemia during anesthesia with medetomidine-zolazepam-tiletamine. Arterial blood samples were collected anaerobically from the femoral artery before and during oxygen supplementation. An oxygen flow rate of 2-5 L/min administered intranasal...
متن کاملA Double-Blinded, Randomized Comparison of Medetomidine-Tiletamine-Zolazepam and Dexmedetomidine-Tiletamine-Zolazepam Anesthesia in Free-Ranging Brown Bears (Ursus Arctos)
We compared anesthetic features, blood parameters, and physiological responses to either medetomidine-tiletamine-zolazepam or dexmedetomidine-tiletamine-zolazepam using a double-blinded, randomized experimental design during 40 anesthetic events of free-ranging brown bears (Ursus arctos) either captured by helicopter in Sweden or by culvert trap in Canada. Induction was smooth and predictable w...
متن کاملBaseline normal values and phylogenetic class of the electrocardiogram of anesthetized free-ranging brown bears (Ursus arctos).
Electrocardiographic (ECG) variables were measured in 22 healthy, free-ranging brown bears (Ursus arctos) anesthetized with a combination of medetomidine, tiletamine, and zolazepam during research and management operations in south-central Sweden. Six-limb lead ECGs and the base-apex lead were recorded. Morphologies, amplitudes, rhythms, and durations of P waves, PQ intervals, QRS complexes, T ...
متن کاملCapture, Anesthesia, and Disturbance of Free-Ranging Brown Bears (Ursus arctos) during Hibernation
We conducted thirteen immobilizations of previously collared hibernating two- to four-year-old brown bears (Ursus arctos) weighing 21-66 kg in central Sweden in winter 2010 and 2011 for comparative physiology research. Here we report, for the first time, an effective protocol for the capture and anesthesia of free-ranging brown bears during hibernation and an assessment of the disturbance the c...
متن کاملLow cardiac output as physiological phenomenon in hibernating, free-ranging Scandinavian brown bears (Ursus arctos) – an observational study
BACKGROUND Despite 5-7 months of physical inactivity during hibernation, brown bears (Ursus arctos) are able to cope with physiological conditions that would be detrimental to humans. During hibernation, the tissue metabolic demands fall to 25% of the active state. Our objective was to assess cardiac function associated with metabolic depression in the hibernating vs. active states in free-rang...
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تاریخ انتشار 2003