Journal of the American Veterinary Medical Association
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J. Am. Vet. Med. Assoc. · Jun 1994
Randomized Controlled Trial Clinical TrialMilk production in cows with endotoxin-induced mastitis treated with isotonic or hypertonic sodium chloride solution.
Milk production was monitored in 16 cows for 6 milkings after intramammary infusion of 1 mg of endotoxin in a single forequarter. The cows were randomly assigned to 1 of 2 treatment groups; 8 cows were treated with isotonic saline solution and 8 cows were treated with hypertonic saline solution. ⋯ Mean cumulative change in milk yield and interval change in milk yield were greater in cows treated with isotonic saline solution than in cows treated with hypertonic saline solution. Significant differences between treatment groups were not detected.
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J. Am. Vet. Med. Assoc. · May 1994
Multicenter StudyAnalysis of risk factors for gastric dilatation and dilatation-volvulus in dogs.
The Veterinary Medical Data Base was usd to conduct an epidemiologic study of gastric dilatation and dilatation-volvulus (GDV) to describe changes over time in frequency of canine hospital admissions, to identify risk factors, and to estimate their relative importance. Cases in this case-control study included 1,934 dogs with GDV that were admitted to 12 participating veterinary hospitals from 1980 to 1989. The controls were 3,868 dogs with other diagnoses that were randomly selected from the same hospitals. ⋯ Significant association of GDV risk with sex or neuter status was not found. The 5 breeds having at least 10 cases and 8 controls and with the highest risk of GDV were Great Dane (OR, 10.0; 95% CL, 6.4, 15.6), Weimaraner (OR, 4.6; 95% CL, 2.3, 9.2), Saint Bernard (OR, 4.2; 95% CL, 2.3, 7.4), Gordon Setter (OR, 4.1; 95% CL, 1.8, 9.3), and Irish Setter (OR, 3.5; 95% CL, 2.4, 5.0). The effect of increasing body weight on GDV risk was less than that of increasing ideal adult breed weight, determined by published breed standards.(ABSTRACT TRUNCATED AT 250 WORDS)
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Orotracheal or nasotracheal intubation was performed in 304 llamas and 6 alpacas during general anesthesia for surgical and diagnostic procedures. The mouth not opening wide and the presence of a prominent torus linguae make orotracheal intubation difficult, but it can be accomplished with the aid of a laryngoscope, using a technique similar to that used in small domestic ruminants. ⋯ Because llamas are obligate nasal breathers, airway obstruction can develop following removal of endotracheal tubes during recovery from anesthesia. This complication can be prevented by maintaining orotracheal tubes until the animal is able to protect its airway or by using nasotracheal tubes, which allow the llama to stand before the tube has to be removed.
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J. Am. Vet. Med. Assoc. · Dec 1993
Case ReportsReexpansion pulmonary edema after surgery to repair a diaphragmatic hernia in a cat.
Fulminant pulmonary edema developed after rapid lung reexpansion following diaphragmatic herniorrhaphy in a cat. Despite medical treatment, the cat died. Pulmonary edema is a potential complication of lung reexpansion achieved by negative intrathoracic pressure or positive-pressure ventilation. Slow expansion of a collapsed lung over a 12-hour period may help prevent this devastating complication.
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J. Am. Vet. Med. Assoc. · Nov 1993
Case ReportsSuspected malignant hyperthermia syndrome in a miniature pot-bellied pig anesthetized with isoflurane.
Hyperthermia developed in a 7-week-old Vietnamese pot-bellied pig after isoflurane anesthesia for routine ovariohysterectomy. Shivering and a sudden increase in heart rate were noticed 90 minutes after anesthetic induction, both of which persisted throughout the remaining anesthetic period. ⋯ Malignant hyperthermia was suspected to be the cause of the clinical signs in this pig, but specific tests to support this diagnosis were not performed. This report illustrates that hyperthermia may develop in this breed of swine during isoflurane anesthesia, and rectal temperature should be monitored during and after the anesthetic period.