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Morphology of Coronary Ostia in Domestic Shorthair Cat
K Barszcz1, M Kupczyńska1, J Klećkowska-Nawrot2
1Department of Morphological Sciences, Faculty of Veterinary Medicine, Warsaw University of Life Sciences - SGGW, Nowoursynowska 159, 02-776, Warsaw, Poland.
Insights
Detailed knowledge of feline coronary ostia morphology is crucial for diagnosing and treating heart disease. This study reveals significant anatomical variations and anomalies in coronary ostia location and presence in domestic cats.
Area of Science:
- Veterinary Cardiology
- Comparative Anatomy
- Cardiac Surgery
Background:
- Accurate diagnosis and treatment of cardiac diseases require thorough understanding of coronary vascularization.
- Detailed knowledge of aortic valve and coronary ostia morphology and variations is essential for managing heart conditions.
Purpose of the Study:
- To investigate the morphology and variations of aortic valves and coronary ostia in domestic cats.
- To provide foundational data for feline cardiac diagnostics and surgical interventions.
Main Methods:
- Examination of the tricuspid aortic valve in 65 domestic shorthair cats.
- Determination of coronary ostia (left and right coronary ostium - LCO and RCO) location relative to the intercommissural line.
- Identification of accessory ostia for coronary arteries (LCA and RCA).
Main Results:
- Coronary ostia positions varied, with most located at the intercommissural line (65-66%).
- Accessory ostia were found in 20% of cats, with varied positions.
- Anatomical variants and anomalies, including absence of the left coronary artery main trunk, were observed.
Conclusions:
- Feline coronary ostia exhibit significant anatomical variability and anomalies.
- This study offers essential data for veterinary angiography and surgical planning in cats.
- Understanding these variations is critical for advancing feline cardiac care.
Abstract:
Diagnosis and treatment of heart diseases due to changes in the coronary vascularization need a detailed knowledge on the morphology and possible variations of the aortic valves and coronary ostia. This study was performed to clarify details on morphology of these structures in domestic cats. The tricuspid aortic valve was examined in 65 domestic shorthair cats. The location of coronary ostia was determined either inferior to (26 and 20%, left and right coronary ostium - LCO and RCO), at (65 and 66%) or superior to the intercommissural line (9 and 14%). In 13 cats (20%), accessory ostia were found either for left, right or both coronary arteries (LCA and RCA). Their position varied between specimens. They were located beyond the main ostium, at its edge, or inside just below the edge. In one cat, no main trunk of the LCA was found. In one cat, two accessory ostia next to the RCO were observed. Coronary ostia in cats show anatomical variants and morphological anomalies. This study provides basic data useful for, for example, angiography performed for diagnosis of cardiac diseases and as a basis for surgical interventions.
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