Title :
Statistical Analysis of QT/RR Hysteresis in Healthy Horses
Author :
Kozelek, P. ; Holcik, J. ; Sedlinska, M.
Author_Institution :
Czech Tech. Univ. Kladno, Kladno
Abstract :
The paper describes experiments and their results that offered an insight to relationship between RR and QT intervals in equine ECG signals recorded under various conditions. In contrast to human heart in a great number of cases the QT intervals prolonged with a heart rate acceleration. Peak-to-peak differences between maximum and minimum RR intervals during the excitation response in non-standard responses were twice as smaller as in standard responses and the lengths of QT intervals were significantly longer in the nonstandard records. This fact means that the electrical processes in equine heart ventricles must be controlled by different mechanisms than in human heart.
Keywords :
bioelectric potentials; electrocardiography; statistical analysis; ECG signals; QT-RR hysteresis; electrical processes; equine heart ventricles; heart rate acceleration; horses; statistical analysis; Anesthesia; Biomedical measurements; Cardiovascular system; Electrocardiography; Heart rate interval; Horses; Humans; Hysteresis; Signal analysis; Statistical analysis; Animals; Computer Simulation; Data Interpretation, Statistical; Heart Rate; Horses; Models, Cardiovascular; Models, Statistical; Reference Values; Reproducibility of Results; Sensitivity and Specificity;
Conference_Titel :
Engineering in Medicine and Biology Society, 2007. EMBS 2007. 29th Annual International Conference of the IEEE
Conference_Location :
Lyon
Print_ISBN :
978-1-4244-0787-3
DOI :
10.1109/IEMBS.2007.4353542
