Pakistan Veterinary Journal | 2019
Determination of Corrected QT Interval in Kangal Breed Dogs
Abstract
Received: Revised: Accepted: Published online: June 24, 2018 October 08, 2018 October 10, 2018 December 21, 2018 QT interval is one of the important reasons of severe and life threatening ventricular arrhythmias in humans and animals. Many formulas have been developed for correcting the QT interval however the best formula did not define yet by the researchers. For this reason, forty-nine clinically healthy Kangal dogs without cardiac problems other than sinus arrhythmia were included to the study. In this study corrected QT interval was determined by Bazet (QTcB = QT/√RR), Fridericia (QTcF = QT/√RR), Famingham (QT+0.154(1-RR)), Van der Water (QTcVdW = QT–0.087((60/HR)-1)), Hodges (QT+0.00175(HR-60)), Matsunaga (QTcM = log600 QT/logRR) formulas. As a result, Bazett s formula showed the best consistency because the slope curve of the regression line was closest to zero (0.00743) in our study.