Key result
The average vertebral heart size in Persian cats was 8.16 thoracic vertebrae, which is higher than the 7.5 average found in other breeds, likely due to their brachycephalic conformation.
Why the study?
The study aimed to determine reference values for vertebral heart size and cardiothoracic ratio in Persian cats using radiographic images to assist in evaluating thorax diseases and cardiomegaly in brachycephalic cats.
Cross-Sectional
Persian cats have a higher average vertebral heart size (8.16) compared to other breeds, likely due to their brachycephalic conformation, which should be considered when evaluating them for cardiomegaly.
Answers are grounded in this paper and cite their sources.
May necessitate breed-specific VHS thresholds in Persian cats; leaves open prospective clinical validation.
The study aimed to determine the reference values related to vertebral heart size (VHS) and cardiothoracic ratio (CTR), which are effective in the evaluation of the thorax diseases and especially cardiomegaly of the brachycephalic cats using the morphometric data of thorax and heart obtained from the radiographic images of the thoracic region of the Persian cats. It was determined that lying position during radiography did not affect VHS and CTR values. Also, the sex factor did not have a significance on these values. The fact that the VHS value of 8.16 thoracic vertebrae averagely found in the Persian cats is higher than 7.5 thoracic vertebrae value averagely stated in the studies conducted with the cats of different breeds is considered since the breed is brachycephalic.
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Sak et al. (2021) conducted a cross-sectional in Cardiomegaly / Thorax diseases. Radiographic evaluation of vertebral heart size and cardiothoracic ratio vs. Cats of different breeds was evaluated on Vertebral heart size (VHS). The average vertebral heart size in Persian cats was 8.16 thoracic vertebrae, which is higher than the 7.5 average found in other breeds, likely due to their brachycephalic conformation.
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