Assessment of cardiac variables using a new electrocardiography lead system in horses.
Abstract: The objective of this study was to assess a new lead system method to improve electrocardiographic measurement in horses. Methods: Twenty-two horses with an average age of 8.8±0.8 years were enrolled in this study. Horses were divided into two groups, consisting of a control group (n=11) and athlete group (n=11). Electrocardiography (ECG) and echocardiography were performed to provide information on the structure and function of the heart. Two lead systems, base apex and modified precordial leads, were used for the electrocardiogram to assess the cardiac electrophysiological functions. Results: PR interval, QT interval, and QRS-T angle presented significant differences between the control and athlete groups when the modified precordial lead system was used. However, significant variations in the mean electrical axis were found when the base apex lead system was used. The modified precordial lead system resulted in more significant differences in cardiac electrophysiological parameters than the base apex lead system. In the athlete group, echocardiography showed cardiac adaptations such as increases in the left atrial and left ventricular dimensions and stroke volume and a decrease in heart rate in response to exercise and training. The observed differences in cardiac morphology and function between groups suggested differences in health performance in the athlete group. Conclusions: These data provided the first evidence that the modified precordial lead system improved statistical variation in ECG recording and provided the most reliable method for health screening in horses.
Copyright: © Cherdchutham, et al.
Publication Date: 2020-06-29 PubMed ID: 32801577PubMed Central: PMC7396356DOI: 10.14202/vetworld.2020.1229-1233Google Scholar: Lookup
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- Journal Article
Summary
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The research study evaluates a novel method of measuring heart function in horses using a differing approach to electrocardiography, with results indicating enhanced statistical variation and dependability compared to standard methods.
Objective of the Study
- The ultimate purpose of the research was to investigate the effectiveness of an innovative electrocardiography lead system for quantifying cardiac functionality in horses. Through this, the researchers aimed to advance diagnostic approaches in equine veterinary supervision.
Methodology
- The researchers examined 22 horses aged approximately 8.8 years. These subjects were classified into two groups: a control group and an athlete group, each comprising 11 horses.
- Cardiac structure and performance in all horses were evaluated using two devices: an electrocardiograph (ECG) and an echocardiograph. The latter instrument records and produces images of a beating heart to evaluate its structural features and functionalities.
- For the ECG, two different lead systems, the base apex and the modified precordial leads, were employed to gauge diverse electrophysiological facets of cardiac functionality.
Results
- Using the modified precordial lead system, the researchers observed important disparities in PR interval, QT interval, and QRS-T angle between the control and athlete groups, whereas significant mean electrical axis discrepancies were detected when applying the base apex lead system.
- The modified precordial lead system introduced more significant differences in the observed cardiac electrophysiological parameters compared to the base apex lead system.
- Echocardiography data showed that the athlete group demonstrated cardiac adaptations, such as increased left atrial and ventricular dimensions and stroke volume, and reduced heart rate in response to exercise and training.
- The noticeable deviations in heart structure and performance between the two groups hinted at different health performance levels in the athlete group.
Conclusion
- The study outcomes produced the first evidence that the modified precordial lead system enhanced statistical variation in ECG recording and offered a more reliable method for health screening in horses.
Cite This Article
APA
Cherdchutham W, Koomgun K, Singtoniwet S, Wongsutthawart N, Nontakanun N, Wanmad W, Petchdee S.
(2020).
Assessment of cardiac variables using a new electrocardiography lead system in horses.
Vet World, 13(6), 1229-1233.
https://doi.org/10.14202/vetworld.2020.1229-1233 Publication
Researcher Affiliations
- Department of Large Animal and Wildlife Clinical Sciences, Faculty of Veterinary Medicine, Kasetsart University, Kamphaeng Saen Campus 73140, Thailand.
- Department of Large Animal and Wildlife Clinical Sciences, Faculty of Veterinary Medicine, Kasetsart University, Kamphaeng Saen Campus 73140, Thailand.
- Department of Large Animal and Wildlife Clinical Sciences, Faculty of Veterinary Medicine, Kasetsart University, Kamphaeng Saen Campus 73140, Thailand.
- Department of Large Animal and Wildlife Clinical Sciences, Faculty of Veterinary Medicine, Kasetsart University, Kamphaeng Saen Campus 73140, Thailand.
- Department of Large Animal and Wildlife Clinical Sciences, Faculty of Veterinary Medicine, Kasetsart University, Kamphaeng Saen Campus 73140, Thailand.
- Department of Large Animal and Wildlife Clinical Sciences, Faculty of Veterinary Medicine, Kasetsart University, Kamphaeng Saen Campus 73140, Thailand.
- Department of Large Animal and Wildlife Clinical Sciences, Faculty of Veterinary Medicine, Kasetsart University, Kamphaeng Saen Campus 73140, Thailand.
References
This article includes 20 references
- De Backer G, Ambrosioni E, Borch-Johnsen K, Brotons C, Cifkova R, Dallongeville J, Ebrahim S, Faergeman O, Graham I, Mancia G, Cats VM, Orth-Gomér K, Perk J, Pyörälä K, Rodicio JL, Sans S, Sansoy V, Sechtem U, Silber S, Thomsen T, Wood D. European guidelines on cardiovascular disease and prevention in clinical practice.. Atherosclerosis 2003 Nov;171(1):145-55.
- Harmon KG, Asif IM, Klossner D, Drezner JA. Incidence of sudden cardiac death in National Collegiate Athletic Association athletes.. Circulation 2011 Apr 19;123(15):1594-600.
- Hong L, Andersen LJ, Graff C, Vedel-Larsen E, Wang F, Struijk JJ, Sogaard P, Hansen PR, Yang YZ, Christiansen M, Toft E, Kanters JK. T-wave morphology analysis of competitive athletes.. J Electrocardiol 2015 Jan-Feb;48(1):35-42.
- Schmied C, Borjesson M. Sudden cardiac death in athletes.. J Intern Med 2014 Feb;275(2):93-103.
- Lyle CH, Uzal FA, McGorum BC, Aida H, Blissitt KJ, Case JT, Charles JT, Gardner I, Horadagoda N, Kusano K, Lam K, Pack JD, Parkin TD, Slocombe RF, Stewart BD, Boden LA. Sudden death in racing Thoroughbred horses: an international multicentre study of post mortem findings.. Equine Vet J 2011 May;43(3):324-31.
- Maron BJ, Thompson PD, Ackerman MJ, Balady G, Berger S, Cohen D, Dimeff R, Douglas PS, Glover DW, Hutter AM Jr, Krauss MD, Maron MS, Mitten MJ, Roberts WO, Puffer JC. Recommendations and considerations related to preparticipation screening for cardiovascular abnormalities in competitive athletes: 2007 update: a scientific statement from the American Heart Association Council on Nutrition, Physical Activity, and Metabolism: endorsed by the American College of Cardiology Foundation.. Circulation 2007 Mar 27;115(12):1643-455.
- Hiraga A, Sugano S. History of research in Japan on electrocardiography in the racehorse.. J Equine Sci 2015;26(1):1-13.
- Bond RR, Finlay DD, Nugent CD, Breen C, Guldenring D, Daly MJ. The effects of electrode misplacement on clinicians' interpretation of the standard 12-lead electrocardiogram.. Eur J Intern Med 2012 Oct;23(7):610-5.
- Buhl R, Meldgaard C, Barbesgaard L. Cardiac arrhythmias in clinically healthy showjumping horses.. Equine Vet J Suppl 2010 Nov;(38):196-201.
- Slack J, Boston RC, Soma LR, Reef VB. Occurrence of cardiac arrhythmias in Standardbred racehorses.. Equine Vet J 2015 Jul;47(4):398-404.
- Cortez DL, Schlegel TT. When deriving the spatial QRS-T angle from the 12-lead electrocardiogram, which transform is more Frank: regression or inverse Dower?. J Electrocardiol 2010 Jul-Aug;43(4):302-9.
- Evans DL, Harris RC, Snow DH. Correlation of racing performance with blood lactate and heart rate after exercise in thoroughbred horses.. Equine Vet J 1993 Sep;25(5):441-5.
- Cravana C, Medica P, Ragonese G, Fazio E. Influence of training and competitive sessions on peripheral β-endorphin levels in training show jumping horses.. Vet World 2017 Jan;10(1):67-73.
- Ayala I, Gutierrez-Panizo C, Benedito JL, Prieto F, Montes A. Morphology and amplitude values of the electrocardiogram of Spanish-bred horses of different ages in the Dubois leads system.. Vet Res 2000 May-Jun;31(3):347-54.
- Mukherjee J, Das PK, Ghosh PR, Banerjee D, Sharma T, Basak D, Sanyal S. Electrocardiogram pattern of some exotic breeds of trained dogs: A variation study.. Vet World 2015 Nov;8(11):1317-20.
- Zabel M, Klingenheben T, Franz MR, Hohnloser SH. Assessment of QT dispersion for prediction of mortality or arrhythmic events after myocardial infarction: results of a prospective, long-term follow-up study.. Circulation 1998 Jun 30;97(25):2543-50.
- da Costa CF, Samesima N, Pastore CA. Cardiac Mean Electrical Axis in Thoroughbreds-Standardization by the Dubois Lead Positioning System.. PLoS One 2017;12(1):e0169619.
- Pluim BM, Zwinderman AH, van der Laarse A, van der Wall EE. The athlete's heart. A meta-analysis of cardiac structure and function.. Circulation 2000 Jan 25;101(3):336-44.
- Amory H, Votion DM, Fraipont A, Goachet AG, Robert C, Farnir F, Van Erck E. Altered systolic left ventricular function in horses completing a long distance endurance race.. Equine Vet J Suppl 2010 Nov;(38):216-9.
- D'Andrea A, Limongelli G, Caso P, Sarubbi B, Della Pietra A, Brancaccio P, Cice G, Scherillo M, Limongelli F, Calabrò R. Association between left ventricular structure and cardiac performance during effort in two morphological forms of athlete's heart.. Int J Cardiol 2002 Dec;86(2-3):177-84.
Citations
This article has been cited 2 times.- Kenchaiwong W, Sangpo P, Kusol A, Pontaema T, Lerdweeraphon W. The position of ground electrode affects electrocardiographic parameters in horses.. Vet World 2022 Apr;15(4):1107-1112.
- Nissen SD, Weis R, Krag-Andersen EK, Hesselkilde EM, Isaksen JL, Carstensen H, Kanters JK, Linz D, Sanders P, Hopster-Iversen C, Jespersen T, Pehrson S, Buhl R. Electrocardiographic characteristics of trained and untrained standardbred racehorses.. J Vet Intern Med 2022 May;36(3):1119-1130.
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