Myocardial bridges in mixed-breed domestic cats in the municipality of Palotina-PR

Authors

DOI:

https://doi.org/10.26605/medvet-v18n4-6500

Keywords:

veterinariy anatomy, cardiology, heart, felines

Abstract

The systematic description of the heart in animals, particularly concerning myocardial bridges (MB), is still limited, despite some studies conducted in different species. MB are structures formed by cardiac muscle fibers that overlay subepicardial segments of one or more branches of the coronary arteries, both right and left. Although studies on these structures exist in various animal species, much remains to be explored in the literature. This study aimed to analyze the frequency and morphometry of MB in the hearts of 15 domestic cats (Felis catus), mixed-breed, adults, including eight females and seven males, from the Federal University of Paraná (UFPR) – Palotina Campus, in Palotina-PR. After dissecting the hearts and injecting red latex into the arteries, 12 MB were identified in seven hearts, predominantly located in branches of the left coronary artery, particularly in the paraconal interventricular branch (n=7, 58.33%). Most hearts presented at least two MB (n=5, 71.43%), while the remaining had a single MB (n=2, 28.57%). The MB varied from small to medium, primarily situated on the dorsal part of the heart. The results of this study expand the understanding of the characteristics of myocardial bridges in domestic cats, providing a valuable basis for comparative anatomy studies between species and aiding in the knowledge of possible correlations between these structures and heart diseases.

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References

Bombonato, P.P.; Mariana, A.N.B.; Amaral, R.C.; Santos, A.L.Q.; Hokamura, H.K.; Silva, F.O.C.; Severino, R.S. Pontes de miocárdio em gatos. Revista do Centro de Ciências Biomédicas da Universidade Federal de Uberlândia, 7(1): 49-57, 1991.

Bombonato, P.P.; Domingos, C.O.; Mariana, A.N.B.; Silva, F.O.C.; Intelizano, W. Ocorrência de pontes de miocárdio em suínos. Brazilian Journal of Veterinary Research Animal Science, 31(2): 107-111, 1994.

Castro, M.G.; Veado, J.C.C.; Silva, E.F.; Araújo, R.B. Estudo retrospectivo ecodopplercardiográfico das principais cardiopatias diagnosticadas em cães. Arquivo Brasileiro de Medicina Veterinária e Zootecnia, 61(5): 1238-1241, 2009.

Cruz, T.L.; Marçal, A.V.; Bombonato, P.P.; Benedicto, H.G.; Silva, F.O.C.; Severino, R.S.; Smrreaux, P.G.; Blazquez, F.J.H. Pontes de miocárdio em ovinos da raça Ideal: frequência e largura. Ciência Animal Brasileira, 8(2): 307-312, 2007.

Driehuys, S.; Van Winkle T.J.; Sammarco, C. D; Drobatz, K.J. Myocardial infarction in dogs and cats: 37 cases (1985-1994). Journal of the American Veterinary Medical Association, 213(10): 1444-1448, 1998.

Farias, E.L.P.; Souza, R.S.; Gomes, F.G.L.R. Ocorrência e morfometria de pontes de miocárdio em cães. Archives of Veterinary Science, 21(3): 82-91, 2016.

Ferreira Jr, A.G.; Trotter, S.E.; Konig Jr, B.; Décourt, L.V.; Fox, K.; Olsen, E.G. Myocardial bridges: morphological and functional aspects. British Heart Journal, 66(5): 364-367, 1991.

Hostiuc, S.; Rusu, M.C.; Hostiuc, M.; Negoi, R.I.; Negoi, I. Cardiovascular consequences of myocardial bridging: A meta-analysis and meta-regression. Scientific Reports, 7(1): 1-13, 2017.

Ker, W.S.; Neves, D.G.; Damas, A.S.A.A.; Mesquita, C.T.; Nacif, M.S. Ponte Miocárdica e Angiotomografia das Coronárias: Perfusão sob Estresse Farmacológico. Arquivo Brasileiro de Cardiologia, 108(6): 572-575, 2017.

Lima, V.M.; Cavalcanti, J.S.; Tashiro, T. Pontes de miocárdio e sua relação com o ramo interventricular anterior da artéria coronária esquerda. Arquivo Brasileiro de Cardiologia, 79(3): 215-218, 2002.

Loukas, M.; Von Kriegenbergh, K.; Gilkes, M.; Tubbs, R.S.; Walker, C.; Malaiyandi, D.; Anderson, R.H. Myocardial bridges: A review. Clinical Anatomy, 24(6): 675-83, 2011.

Machado, M.R.F.; Bombonato, P.P.; Mariana, A.N.B.; Severino, R.S.; Amaral, R.C. Pontes de miocárdio em caprinos. Ars Veterinaria, 11(1): 17-24, 1995.

Mohlenkamp, S.; Hort, W.; Ge, J.; Erbel, R. Update on myocardial bridging. Circulation, 106 (20): 2616-2622, 2002.

NAV. Nomina Anatomica Veterinaria. Prepared by International Committee on Veterinary Gross Anatomical Nomenclature. 6th ed. (revised version). Hanover, Ghent, Columbia, Rio de Janeiro, 2017. 178 p.

Nocetti, L.M.; Bombonato, P.P.; Santana, M.I.S.; Silva, F.O.C.; Severino, R.S. Pontes de miocárdio em corações de javali. Brazilian Journal of Veterinary Research and Animal Science, 39(2): 66-73, 2002.

Ribeiro, A.L.C.; Severino, R.S.; Guerra, R.R.; Favaron, P.O.; Junior, H.L.P.T.; Ricci, R.E.G.; Franciolli, A.L.R.; Facciotti, P.R.; Bombonato, P.P. Biometria de pontes de mioca?rdio em muares (Equus caballus x Equus asinus – Linnaeus 1758). Biotemas, 22(3): 177-184, 2009.

Roberts, W.; Charles, S.M.; Ang, C.; Holda, M.K.; Walocha, J.; Lachman, N.; Tubbs, R.S.; Loukas, M. Myocardial bridges: a meta-analysis. Clinical Anatomy, 34(5): 685–709, 2021.

Santos, J.W.; Bombonato, P.P.; Beletti, M.E.; Severino, R.S.; Silva, F.O.C. Pontes de miocárdio em bovinos da raça Canchim, Aspectos microscópicos. Brazilian Journal of Veterinary Research and Animal Science, 37(2): 128-131, 2000.

Santos, A.L.Q.; Carvalho, S.F.M.; Moraes, F.M.; Alves Júnior, J.R.F. Myocardial bridges in mountain lion (Puma concolor, Jardine-1834) (Felidae): A case report. Brazilian Journal of Veterinary Research and Animal Science, 21(4): 221-223, 2004.

Santos, J.W.; Wafae, N.; Beletti, M.E. Ponte miocárdica associada a lesões cardiovasculares em bovinos adultos da raça canchim. Arquivo Brasileiro de Cardiologia, 98(1): 22-28, 2012.

Santos, T.F.D.A.; Godinho, A.B.F.R.; Almeida, S.M.D.; Leandro, H.J.; Quirino, C.R. Estudo morfológico de pontes de miocárdio em cães. PubVet, 15(10): 1-7, 2021.

Severino, R.S.; Bombonato, P.P. Ocorrência de pontes de miocárdio em bovinos das raças Gir, Guzerá, Indubrasil e Nelore. Brazilian Journal of Veterinary Research and Animal Science, 29(1): 15-30, 1992.

Severino, R.S.; Silva, F.O.C.; Santos, A.L.Q.; Drummond, S.S.; Bombonato, P.P.; Duran, F.P.; Marçal, A.V. Pontes de miocárdio em bovinos azebuados. Brazilian Journal of Veterinary Research and Animal Science, 34(5): 288-291, 1997.

Van Nie, C.J.; Vincent, J.G. Myocardial bridges in animals. Anatomy, Histology and Embryology, 18(1): 45-51, 1989.

Published

2024-12-18

How to Cite

Ruiz, L. L., Salvalaggio, A. M., & Silva, L. C. S. da. (2024). Myocardial bridges in mixed-breed domestic cats in the municipality of Palotina-PR. Medicina Veterinária, 18(4), 347–353. https://doi.org/10.26605/medvet-v18n4-6500

Issue

Section

Animal Morphology and Physiology

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