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At least 631 records · Page 35Linked to original sources
PubMed1992

Anesthetic management of an incisional dehiscence in recovery following exploratory laparotomy in a horse.

A 5-year old Arabian mare fell during recovery from general anesthesia after an exploratory laparotomy. This fall resulted in dehiscence of the abdominal closure, and a substantial amount of intestines were exteriorized. Chemical and manual restraints were rapidly used to prevent trauma to the exposed intestines. A second general anesthesia was initiated to clean the intestines and close the incision. Multiple anesthetic problems were encountered, including arterial hypotension and hypoxemia. The horse recovered from the second general anesthesia and surgery, and all complications gradually resolved. The horse was discharged and has not had further problems to date.

Anesthesia, Intravenous↗
PubMed1975

In vivo erythrocyte sickling in the Japanese sika deer (Cervus nippon): methodology.

The Japanese sika deep (Cervus nippon) proved to be a suitable animal model for the study of acute phases of in vivo erythrocyte sickling. Ophthalmologic studies can be conducted during or after 1 to 6 hours of effective in vivo sickling. Intravenous administration of 1.75 to 3.5% sodium bicarbonate solution at a rate of 500 to 1,000 ml per hour produced a transient state of alkalosis and in vivo erythrocyte sickling in the sika deer. The percentage of sickled erythrocytes increased as the blood pH increased. Concurrently, the packed cell volume decreased. Sickling was enhanced by 100% oxygen ventilation after endotracheal intubation and light anesthetization. After the induction of erythrocyte sickling, a sickling-reversal phenomenon occurred despite continued bicarbonate administration. During the course of this reversal, the percentage of sickled erythrocytes steadily decreased, the venous blood pH decreased, and the packed cell volume slowly increased. Because of the sickling-reversal phenomenon, chronic erythrocyte sickling was not achieved.

Alkalosis↗
PubMed1975

Cardiopulmonary effects of positive end-expiratory pressure in anesthetized horses.

The cardiopulmonary effects of 0, 5, 10, and 15 cm of H2O positive end-expiratory pressures (PEEP) were determined in anesthetized, spontaneously breathing horses, using a 4 by 4 Latin-square design with one repetition. Cardiac output, alveolar-arterial oxygen tension difference, alveolar ventilation, dead space/tidal volume ratio, and carbon dioxide elimination were not significantly altered by the procedure. As PEEP was increased, alveolar and arterial oxygen tensions, respiratory exchange ratio, and pH decreased, whereas arterial carbon dioxide tension and oxygen consumption increased. These results indicate PEEP is contraindicated in laterally recumbent spontaneously ventilating anesthetized horses breathing air, because it causes alveolar hypoventilation and does not improve pulmonary gas exchange.

Anesthesia, Intravenous↗
PubMed1989

Postanesthetic compartmental syndrome in a horse.

After surgery, high intramuscular pressures were measured in a horse with clinical signs of postanesthetic myopathy that developed following a 2.25-hour surgical procedure. In the postoperative period, tests for muscular and neurologic integrity were made, including measurement of intracompartmental muscle pressure.

Anesthesia, General↗
PubMed1986

Anatomic and anesthetic considerations in experimental cardiopulmonary surgery in swine.

We have used immature commercial swine (13-25 kg) successfully in a variety of experimental cardiopulmonary surgical procedures in our laboratories since 1981. Multiple drug anesthetic protocols using barbiturates, narcotics, paralytic and antiarrhythmic agents have been employed in over 400 procedures per year. Complications, including fatal cardiac arrhythmias, have been greatly reduced by anesthetic protocols and surgical procedures developed through experience.

Acepromazine↗
PubMed1986

Somatosensory-evoked potential induced by stimulation of the caudal tibial nerve in awake and barbiturate-anesthetized sheep.

The somatosensory-evoked potential (SEP) from caudal tibial nerve stimulation was recorded in sheep, using surgically implanted electrodes. Peak latencies of the SEP remained stable throughout the 3- to 5-month recording period. Wave-form and peak latencies from awake sheep and concomitant changes during barbiturate anesthesia were compared with those reported for other animal species, including man. Wave form components representing activities from the primary somesthetic cortex, association cortex, and non-specific diffuse projections were differentially susceptible to barbiturate anesthesia. The neural source of the initial positive peak (mean latency = 19 ms) was resistant to anesthesia and represented primary somesthetic activity of the cortex. Sheep with surgically implanted electrodes yielded stable latencies with SEP wave-form features essentially homologous to those reported for other animal species.

Anesthesia↗