A comparison of injectable anaesthetic regimens in mules. 1992

N S Matthews, and T S Taylor, and C L Skrobarcek, and J D Williams
Department of Large Animal Medicine and Surgery, Texas Veterinary Medical Center, Texas A & M University, College Station 77843, USA.

Three combinations of injectable anaesthetic agents were compared in nine adult mules. The combinations were xylazine/ketamine (X/K), xylazine/butorphanol/ketamine (X/B/K), and xylazine/tiletamine-zolazepam (X/T). Measured variables were heart rate, respiratory rate, systolic blood pressure, arterial blood pH, PCO2 and PO2, recumbency time and number of attempts to stand. Quality of induction and recovery, muscle relaxation and response to stimulus were evaluated subjectively. Recumbency time was significantly (P < 0.05) longer with X/B/K and X/T than with X/K. Mules required significantly more attempts to stand under the influence of X/T than X/K or X/B/K. No statistically significant (P < 0.05) differences in heart rate, respiratory rate, blood pressure or arterial pH, PCO2 and PO2 were detected between groups.

UI MeSH Term Description Entries
D007275 Injections, Intravenous Injections made into a vein for therapeutic or experimental purposes. Intravenous Injections,Injection, Intravenous,Intravenous Injection
D007649 Ketamine A cyclohexanone derivative used for induction of anesthesia. Its mechanism of action is not well understood, but ketamine can block NMDA receptors (RECEPTORS, N-METHYL-D-ASPARTATE) and may interact with sigma receptors. 2-(2-Chlorophenyl)-2-(methylamino)cyclohexanone,CI-581,Calipsol,Calypsol,Kalipsol,Ketalar,Ketamine Hydrochloride,Ketanest,Ketaset,CI 581,CI581
D008297 Male Males
D009126 Muscle Relaxation That phase of a muscle twitch during which a muscle returns to a resting position. Muscle Relaxations,Relaxation, Muscle,Relaxations, Muscle
D010100 Oxygen An element with atomic symbol O, atomic number 8, and atomic weight [15.99903; 15.99977]. It is the most abundant element on earth and essential for respiration. Dioxygen,Oxygen-16,Oxygen 16
D010313 Partial Pressure The pressure that would be exerted by one component of a mixture of gases if it were present alone in a container. (From McGraw-Hill Dictionary of Scientific and Technical Terms, 6th ed) Partial Pressures,Pressure, Partial,Pressures, Partial
D012119 Respiration The act of breathing with the LUNGS, consisting of INHALATION, or the taking into the lungs of the ambient air, and of EXHALATION, or the expelling of the modified air which contains more CARBON DIOXIDE than the air taken in (Blakiston's Gould Medical Dictionary, 4th ed.). This does not include tissue respiration ( Breathing
D001794 Blood Pressure PRESSURE of the BLOOD on the ARTERIES and other BLOOD VESSELS. Systolic Pressure,Diastolic Pressure,Pulse Pressure,Pressure, Blood,Pressure, Diastolic,Pressure, Pulse,Pressure, Systolic,Pressures, Systolic
D002077 Butorphanol A synthetic morphinan analgesic with narcotic antagonist action. It is used in the management of severe pain. 17-(Cyclobutylmethyl)morphinan-3,14-diol,Apo-Butorphanol,BC-2627,Beforal,Butorphanol Tartrate,Dolorex,Moradol,Stadol,Stadol NS,Torbugesic,BC 2627,BC2627
D002245 Carbon Dioxide A colorless, odorless gas that can be formed by the body and is necessary for the respiration cycle of plants and animals. Carbonic Anhydride,Anhydride, Carbonic,Dioxide, Carbon

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