Tomografia computadorizada do coração e padrões eletrocardiográficos de Araras Canidés de vida livre (Ara ararauna)

Abstract

Country with the highest number of parrots in Brazil, 72 of the 332 species distributed in the world can be seen. Birds with exuberant colors, friendly behavior and great longevity are the most common birds, being raised as companion animals. The Canindé macaw has been standing out in this universe of companion animals, it is a bird that is of little concern in the list of endangered animals, but in its habitat it has been decreasing the number of individuals. The heart is located in the cranial coelomic cavity, where it makes contact dorsally with the lungs and caudally with the liver. Sedentary lifestyle and poor diet may be responsible for the appearance of cardiovascular pathologies in these birds. Exams such as electrocardiogram and computed tomography are able to detect changes and thus help in the diagnosis of these pathologies. The study aims to evaluate the electrocardiogram and normal morphology of the heart of free-living Canindé macaws (Ara ararauna), in addition to providing a relationship between the heart diameter in the sagittal section and the diameter of the coelomic cavity in the dorsal section, obtaining mean values of 60.37 ± 4.26, between the diameter of the heart in the dorsal section and the diameter of the coelomic cavity in the dorsal section, obtaining mean values of 44.98 ± 3.45 and the ratio of the heart area to the area of the coelomic cavity, to pulmonary trunk level in the cross section, obtaining mean values of 20.97 ± 2.60. From these results, it was possible to determine normal values for the amplitude and duration of electrocardiographic waves and dimensions of the heart and coelomic cavity of Canindé macaws, providing relevant information for literature and possible further studies related to the genus Ara and other species of macaws. birds.