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Morphometry and topography of the coronary ostia in the dog

Karolina Barszcz

Karolina Barszcz

Department of Morphological Sciences, Institute of Veterinary Medicine, Warsaw University of Life SciencesWarszawa, Poland
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Barszcz, Karolina
, 
Karolina Goździewska-Harłajczuk

Karolina Goździewska-Harłajczuk

Department of Animal Physiology and Biostructure, Faculty of Veterinary Medicine, Wrocław University of Environmental and Life SciencesWrocław, Poland
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Goździewska-Harłajczuk, Karolina
, 
Michał Czopowicz

Michał Czopowicz

Division of Veterinary Epidemiology and Economics, Institute of Veterinary Medicine, Warsaw University of Life SciencesWarszawa, Poland
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Czopowicz, Michał
, 
Magdalena Chłopecka

Magdalena Chłopecka

Department of Preclinical Sciences, Institute of Veterinary Medicine, Warsaw University of Life SciencesWarszawa, Poland
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Chłopecka, Magdalena
, 
Michał Polguj

Michał Polguj

Department of Normal and Clinical Anatomy, Medical University of LodzŁódź, Poland
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Polguj, Michał
 and 
Joanna Klećkowska-Nawrot

Joanna Klećkowska-Nawrot

Department of Animal Physiology and Biostructure, Faculty of Veterinary Medicine, Wrocław University of Environmental and Life SciencesWrocław, Poland
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Klećkowska-Nawrot, Joanna
  
Sep 20, 2023
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Published Online: Sep 20, 2023
Page range: 471 - 478
Received: Mar 28, 2023
Accepted: Sep 13, 2023
DOI: https://doi.org/10.2478/jvetres-2023-0054
Keywords
© 2023 Karolina Barszcz et al., published by Sciendo
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Introduction

The purpose of this study was to perform a morphometric examination of the coronary ostia, including their location in the area of the aortic sinuses, and to describe variations in ostia structure in the domestic dog.

Material and Methods

The study was conducted on the hearts of 91 pedigree dogs of both sexes, aged 1 to 18 years (median 9 years), with a body weight from 1.2 to 65 kg (median 20.7 kg). Morphometric examinations of the coronary ostia were performed in the studied individuals, and the location of the structures in relation to the intercommissural lines was determined.

Results

Three types of location of the coronary ostia were distinguished, i.e. below the intercommissural line (type I), on the intercommissural line (type II), and above the intercommissural line (type III). In the studied dogs, the most common location of the ostia was type I – found in the left coronary artery of 74/91 dogs (81%) and in the right coronary artery of 42/91 dogs (46%). Morphological variations were shown in 36/91 dogs (40%) in the structure of the coronary ostia, including the presence of accessory ostia. The most common variation was the presence of an accessory ostium near the ostium of the right coronary artery, which was found in 28/91 dogs (31%).

Conclusion

The results may be useful in developing standards for procedures to replace the whole or part of the aortic valve and repair the coronary artery.
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English
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Life Sciences, Molecular Biology, Microbiology and Virology, Life Sciences, other, Medicine, Veterinary Medicine
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