Vasovagal tone index in dogs with myxomatous mitral valve disease

Arquivo Brasileiro de Medicina Veterinária e Zootecnia 2026 Open access

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Authors: Marília Ávila Valandro, G.M. Lopes, M.A. Pontes, Jõao Paulo da Exaltação Pascon
DOI: 10.1590/1678-4162-13427
Cited by: 0
References: 16

Abstract

ABSTRACT This study aimed to evaluate the Vasovagal Tone Index (VVTI) at different stages of Myxomatous Mitral Valve Disease (MMVD). A total of 525 electrocardiograms from the period between 2014 and 2023 were analyzed, of which 173 could be included in the VVTI assessment and grouped according to the staging of MMVD. Animals in stages C/D showed a lower mean value (p0.05). Dogs with VVTI values below 2.97 (cut-off point) were 3.27 times more likely to be classified in stage C/D (with signs of heart failure) (p

Fields of Study & Subjects

Heart Rate Variability and Autonomic Control Veterinary Medicine and Surgery Cardiac electrophysiology and arrhythmias

Publication details

Journal / source
Arquivo Brasileiro de Medicina Veterinária e Zootecnia
Volume
78
Issue
1
Publication date
1 January 2026
Language
EN