Diagnostics of the heart condition in ukrainian riding horses with a portable ecg monitor
DOI:
https://doi.org/10.31548/ujvs2020.03.001Keywords:
arrhythmias, heart condition diagnostics, portable ECG-monitor, ECG records, horsesAbstract
Abstract. Electrocardiographic reference values of clinically healthy horses are needed for assessment of the reduced performance or cardiac pathology animals. The purpose of this study was to establish the rate of occurrence of arrhythmias in clinically healthy horses of the Ukrainian riding breed at rest, during exercises and recovery period. Experimental group of animals included 36 horses of 3 – 17-years old, 16 mares (adult female horses), 11 geldings (castrated males) and 9 stallions (adult males). The electrodes were placed with modified base-apex system on the surface of animals’s body. ECG recording was performed at rest (15 minutes), during exercises and recovery period, for 30–40 and 15 minutes, respectively. Prevalence and rate of occurrence of arrhythmias was analyzed with obtained recordings. A significant number of the second degree atrioventricular blocks were detected in 13.9 % cases (n=5) during the recovery period. 33.3 % (n=12), 8.3 % (n=3) and 19.4 % (n=7) of cases of supraventricular premature contractions were detected during exercises, at rest and during recovery period, respectively. The incidence of supraventricular premature contractions was < 3/animal and < 5/animal during exercises and recovery period, respectively; with exception for one animal which 9 and 7 premature contractions were detected, respectively. Ventricular premature contractions were identified in 2.7 % (n=1) and 5.6 % (n=2) cases, at rest and exercises, respectively. Supraventricular tachycardia with 6–9 consecutive premature contractions during trot was detected in 1 horse (2.7 %). The results of this study have confirmed the presence of arrhythmias in clinically healthy horses. The type of arrhythmias significantly depends on the period (rest, exercises and recovery) of the animal’s activity, particularly.
Key words: arrhythmias, heart condition diagnostics, portable ECG-monitor, ECG records, horses
References
Alidady, N., Dezfouki, M. R. & Nadalian, M. G. (2002). The ECG of Turkman horse using the standard lead base apex. Veterinary Science, 22 (5):182−184. https://doi.org/10.1053/jevs.2002.34297
Bonagura, J. D. & Miller, M. S. (1985). Junctional and ventricular arrhythmias. Journal of equine veterinary Science, 5:347-350. https://doi.org/10.1016/S0737-0806(85)80008-3
Borovkov, S., Korenev, M. & Borovkova, V. (2013). Functional condition of cardiovascular system in horses of ukrainian up-river breed depending on age. Scientific journal of veterinary medicine, 11(101): 22−25. (in Ukrainian)
Buhl, R., Meldgaard, C. & Barbesgaard, L. (2010). Cardiac arrhythmias in clinically healthy showjumping horses. Equine veterinary journal, 42:196-201. https://doi.org/10.1111/j.2042-3306.2010.00185.x
https://doi.org/10.1111/j.2042-3306.2010.00185.x
Edwards, E. H. (2016). The Encyclopedia of the Horse. DK Publishing, 360.
Flethоj, M., Kanters, J. K. Pedersen, P. J. (2016). Appropriate threshold levels of cardiac beat-to-beat variation in semi-automatic analysis of equine ECG recordings. BMC Veterinary Research, 12:266. https://doi.org/10.1186/s12917-016-0894-2
Hilwig, R. W. (1977). Cardiac arrhythmias in the horse. Journal of the American Veterinary Medical Association, 170:153-163.
Lewis, T. (1911). Irregularity of the heart's action in horses and its relation to fibrillation of the auricles in experiment and to complete irregularity of the human heart. Heart, 3:161.
Maksymovych, I. (2016). Prevalence and diagnosis of cardiac arrhythmias in sport horses. Scientific journal of veterinary medicine, 2:57-63. (in Ukrainian)
Marr, C. & Bowen, M. (2010) Cardiology of the Horse, 2nd Edition. London, Elsevier, 320.
Martin, B. B., Reef, V. B. & Parente, E. J. (2000). Causes of poor performance of horses during training, racing, or showing: 348 cases (1992-1996). Journal of the American Veterinary Medical Association, 216:554-558. https://doi.org/10.2460/javma.2000.216.554
Menzies-Gow, N. (2001). ECG interpretation in the horse. In Practice, 9:454-459. https://doi.org/10.1136/inpract.23.8.454
Mokhber Dezfuli, M. R., Alidady, N. & Nadalian, M. G. (2001). The characters of QRS complex in the ECG of Torkman (saka) horse. Journal of faculty of Veterinary medicine University of Tehran., 56(1): 7−12.
Popadiuk, B. & Holopura, S. (2020). Validation of a portable ECG monitor for the diagnosis of arrhythmias in horses compared to a standard electrocardiograph. Scientific Messenger of Lviv National University of Veterinary Medicine and Biotechnologies. Series: Veterinary sciences, 22(97):20-25. https://doi.org/10.32718/nvlvet9704
Reef, V. B., Bonagura, J. & Buhl, R. (2014). Recommendations for management of equine athletes with cardiovascular abnormalities. The Journal of Veterinary Internal Medicine; 28(3):749-61. https://doi.org/10.1111/jvim.12340
Reimer, J. M., Reef, V. B. & Sweeney, R. W. (1992). Ventricular arrhythmias in horses - 21 cases (1984-1989). Journal of the American Veterinary Medical Association, 201:1237-1243.
Rousseau E., Bris Y. L. & Fagan T. L. (2017). Horses of the World. Princeton, Princeton University Press, 528.
Ryan, N., Marr, C. M. & McGladdery, A. J. (2005). Survey of cardiac arrhythmias during submaximal and maximal exercise in Thoroughbred racehorses. Equine Veterinary Journal, 37: 265-268. https://doi.org/10.2746/0425164054530713
Ulfberg, J. W. & Clark, J. S. (2006). Bradydysrhythmias and atrioventricular conduction blocks. Emergency Medicine Clinics of North America., 24:1-9. https://doi.org/10.1016/j.emc.2005.08.006
Young, L. E. (2007). Recent advances in diagnosing cardiac abnormalities with an ECG during exercise: a659847 review. Proceedings of the American Association of Equine Practitioners, 53:99-103.
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