Quantitative radiographic analysis of the cardiac silhouette of healthy free-living crested caracaras (Caracara plancus)

Authors

DOI:

https://doi.org/10.26605/medvet-v19n2-7246

Keywords:

falconids, radiology, cardiovascular system, heart

Abstract

Radiographic exams are an important tool for investigating the cardiovascular system of birds, enabling qualitative and quantitative analysis of the cardiac silhouette. However, researche on falconid is rare. The study aimed to establish average values of the relationship between the thorax width (TW) and the heart width (HW) of the cardiac silhouette of healthy free-living crested caracara (Caracara plancus). For this purpose, X-rays were made of the coelomic cavity of 10 crested caracaras in the ventrodorsal and right laterolateral views. The analysis of the ventrodorsal views allowed the measurement of TW and HW, obtaining mean values of the TW:HW ratio 52.05 ± 6.60%. Due to similar biometrics to caracaras and because they were healthy in the screening tests, we consider that these values can be used as a reference for free-living adult crested caracaras and can be used as comparative data for diagnosing heart disease in the species, especially in captive caracaras.

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References

Barbon, A.R.; Smith, S.; Forbes, N. Radiographic Evaluation of Cardiac Size in Four Falconiform Species. Journal of Avian Medicine and Surgery, 24(3): 222-226, 2010.

Cornélia, K.; Krautwald-Junghanns, M.E. Heart Disease in Pet Birds - Diagnostic Options. Veterinary Clinics of North America: Exotic Animal Practice, 25(2): 409-433, 2022.

De Wit, M.; Schoemaker, N.J. Clinical Approach to Avian Cardiac Disease. Seminars in Avian and Exotic Pet Medicine, 14(1): 6-13, 2005.

Fitzgerald, B.C.; Beaufrère, H. Cardiology. In: Speer, B.L. Current therapy in avian medicine and surgery. 1st ed. Missouri: Elsevier, 2016. p.252-328.

Huber, N. et al. Measuring short-term stress in birds: Comparing different endpoints of the endocrine-immune interface. Physiology and Behavior, 1(182): 46-53, 2017.

Joppert, A.M. Accipitriformes, Falconiformes e Strigiformes (Gaviões, Águias, Falcões e Corujas). In.: Cubas, Z.S.; Silva, J.C.R.; Dias, J.L.C. Tratado de animais selvagens: medicina veterinária. 2a ed. São Paulo: Roca, 2014. p.527-597.

Locke, S. et al. Radiographic Reference Intervals of the Cardiac Silhouette Width in the Bald Eagle (Haliaeetus leucocephalus). Journal of Avian Medicine and Surgery, 34(3): 260-267, 2020.

Lumeij, J.T.; Shaik, M.A.S.; Ali, M. Radiographic reference limits for cardiac width in peregrine falcons (Falco peregrinus). Journal of the American Veterinary Medical Association, 238(11): 1459-14463, 2011.

Mendes das Mercês, J.M. et al. Aves silvestres e suas relações com homens no Cerrado Leste Maranhense, Brasil. Etnobiología, 19(2): 62-78, 2021.

Oliveira, H.S.; Souza, D.R.A.; Silva, M.N. Etograma do Carcará (Caracara Plancus, Miller, 1777) (Aves, Falconidae), em cativeiro. Revista de Etologia, 13(2): 1-9, 2014.

Parra, B.S. et al. Sedativos e anestésicos em répteis e aves ornamentais. Revista Científica Eletrônica de Medicina Veterinária, 7(12): 1-7, 2009.

Rettmer, H. et al. Radiographic measurement of internal organs in Spix's macaws (Cyanopsitta spixii). Journal of Avian Medicine and Surgery, 25(4): 254-258, 2011.

Rui, L.A. et al. (2017). External fixation to correct tarsal-metatarsal fracture in rock pigeon (Columba livia). Revista Ceres, 64(1): 25–30, 2017.

Santos, G.J. et al. Computed tomographic and radiographic morphometric study of cardiac and coelomic dimensions in captive blue-fronted Amazon parrots (Amazona aestiva, Linnaeus, 1758) with varying body condition scores. Anatomia, Histologia, Embryologia, 49(2): 299-306, 2020.

Schnitzer, P.; Sawmy, S.; Crosta, L. Radiographic measurements of the cardiac silhouette and comparison with other radiographic landmarks in wild Galahs (Eolophus roseicapilla). Animals, 11(3): 1-8, 2021.

Silva, J.P. et al. Radiographic Measurements of the Cardiac Silhouette in Healthy Blue-Fronted Amazon Parrots (Amazona aestiva). Journal of Avian Medicine and Surgery, 34(1): 26-31, 2020a.

Silva, J.P. et al. Radiography and computed tomography of the heart and lower respiratory tract in tocotoucans (Ramphastos toco). Anatomia, Histologia, Embryologia, 49(4): 541-549, 2020b.

Straub, J.; Pees, M.; Krautwald-Junghanns, M.E. Measurement of the cardiac silhouette in psittacines. Jornal of the American Veterinary Medical Association, 221(1): 76-79, 2002.

Strunk, A.; Wilson, G.H. Avian cardiology. Veterinary Clinics Exotic Animal Practice, 6(1): 1-28, 2003.

Yunker, K.A. et al. Radiographic Evaluation of Cardiac Silhouette in Clinically Healthy Humboldt Penguins (Spheniscus humboldti). Jornal of Zoo and Wildlife Medicine, 49(3): 573-580, 2018.

Published

2025-09-01

How to Cite

Santos, P. R. de S., Cândido, A. P. C., Oliveira, A. S. de, Cassa Reis, A., Santos, B. J. dos, Valença, Y. M., … Costa, F. S. (2025). Quantitative radiographic analysis of the cardiac silhouette of healthy free-living crested caracaras (Caracara plancus). Medicina Veterinária, 19(2), 116–122. https://doi.org/10.26605/medvet-v19n2-7246

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