Vasovagal tonus index in dog with myxomatous mitral valve disease
Pesqui. vet. bras; 37 (10), 2017
The vasovagal tonus index (VVTI) is a useful and assessable index, obtained from standard ECG recordings, that is used to estimate heart rate variability (HRV), and may provide valuable information regarding the likelihood of progression into congestive heart failure (CHF). In this paperwork, we investig...