J Vet Cardiol 2021 Feb 27;35:25-41. Epub 2021 Feb 27.
Laboratory of Comparative Cardiology, Department of Veterinary Medicine, Federal University of Paraná, Curitiba, PR, 80035-050, Brazil.
Introduction/objectives: In the past few years, novel markers such as the interval between the peak and the end of T-wave (Tpte) and Tpte/QT ratio have been shown to have high sensitivity for ventricular arrhythmias and mortality. We analyzed these and other parameters of ventricular repolarization, such as QT interval, QT interval corrected for heart rate (QTc), and QT dispersion (QTd) in dogs with myxomatous mitral valve disease (MMVD). Additionally, we investigated their relationship with the progression of the disease, echocardiographic parameters, and ventricular arrhythmias and assessed their prognostic value with development of clinical signs or mortality as the final outcome. Read More