4.3 Article

Normal echocardiographic and radiographic reference values for crab-eating fox (Cerdocyon thous) anesthetized with ketamine and midazolam

Journal

VETERINARY RESEARCH COMMUNICATIONS
Volume 46, Issue 3, Pages 961-965

Publisher

SPRINGER
DOI: 10.1007/s11259-022-09892-w

Keywords

Cardiac evaluation; Wild foxes; Ketamine; Midazolam; Echocardiography; Chest radiography

Funding

  1. Sao Paulo State University (Unesp), School of Veterinary Medicine and Animal Science, Botucatu, Sao Paulo, Brazil

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The aim of this study was to evaluate the cardiac condition of wild foxes through complimentary examinations. The results showed that compared to domestic canids, the cardiac size and blood flow velocity indices of the anesthetized foxes decreased, but the serum cardiac troponin levels remained normal. M-mode echocardiography proved to be a safe and effective method for assessing the cardiac function of wild canids.
The cardiac evaluation of wild animals is still a wide and largely unknown field for several species. Therefore, through complimentary examinations such as radiography, echocardiography and serum troponin levels, this study aimed at describing the values observed in 12 crab-eating foxes (Cerdocyon thous) anesthetized with a combination of intramuscular ketamine and midazolam. Thus, through complementary exams such as radiography, echocardiography and serum troponin levels, the aim of this study was to describe the cardiac values in 12 wild foxes (C. thous) anesthetized with an intramuscular injection of ketamine and midazolam. After anaesthetization, the radiographic, echocardiographic and immunoenzymatic reference values for the 12 males in the sample group were determined. Compared with those in domestic canids, there was a decrease in the sizes of the septum, wall and left ventricular cavity as well as decreases in the transmitral blood flow velocity indices, correlated with preserved serum cardiac troponin (cTnI) levels. Thus, M-mode echocardiography proved to be safer, with results that were comparative to those for other species of wild canids with indexed values. In addition, when evaluating the systolic function and segmentary contractions, the anesthetic combination did not have any effects on the results of complementary examinations performed in crab-eating foxes (C. thous) included in this study.

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