Heart rate variability for small animal veterinarians - A concise debate


heart rate variability, veterinary cardiology, autonomic nervous system, small animals, cardiac interval. variabilidade da frequência cardíaca, cardiologia veterinária, sistema nervoso autônomo, pequenos animais, intervalo cardíaco.

How to Cite

Fernandes, L. G., & Seara, F. de A. C. (2021). Heart rate variability for small animal veterinarians - A concise debate. Brazilian Journal of Veterinary Medicine, 43(1), e003621. https://doi.org/10.29374/2527-2179.bjvm003621


This manuscript aims to provide a simple and concise discussion on heart rate variability (HRV) for small animal veterinarians. Despite the fact that heart rate variability analysis techniques have been used for quite a long time in medical sciences, it seems to be not completely understood by a large fraction of veterinarian professionals, thereby, reducing the possible benefits to patients that could arise from such information. The analysis of the R-R intervals enables the veterinarian to evaluate autonomic sympathetic and parasympathetic modulation of the heart, composing the so-called cardiac autonomic balance. Several pathophysiological states lead to profound changes in autonomic balance, especially in the cardiovascular system. Therefore, heart rate variability methods remain a valuable and powerful tool for the diagnosis and prognosis of cardiovascular diseases.



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Copyright (c) 2021 Luciano Gonçalves Fernandes, Fernando de Azevedo Cruz Seara