Atrial premature depolarization-induced changes in QRS and T wave morphology on resting electrocardiograms in horses
- Author
- Barbara Broux (UGent) , Dominique De Clercq (UGent) , Annelies Decloedt (UGent) , Nicky Van Der Vekens (UGent) , Tinne Verheyen (UGent) , Sofie Ven, Bart Pardon (UGent) and Gunther van Loon (UGent)
- Organization
- Abstract
- Background : The electrocardiographic differentiation between atrial (APDs) and ventricular (VPDs) premature depolarizations is important. P wave prematurity and normal QRS and T wave morphology generally are used as discriminating criteria for APDs. Hypothesis/Objectives : The aim of this study was to determine whether P, Q, R, S, and T wave amplitude, PQ interval, QRS and P wave duration and P and T wave morphology differ between APDs and sinus beats. To determine the relationship between the RR coupling interval and the change in S wave amplitude between sinus beats and APDs. Methods : Case-control study. From a modified base-apex configuration of 30 horses with APDs at rest, sinus beat and APD associated preceding RR interval, P, PQ and QRS duration and P, R, S, and T wave amplitudes were measured. Linear mixed models and logistic regression were used to determine the effect of APDs on the ECG variables studied. Results : In comparison to sinus beats, APDs were associated with a significant (P < .001) change in P amplitude (-0.03 0.01 mV) and increase in S (0.20 +/- 0.02 mV) and T (0.08 +/- 0.03 mV) amplitude. PQ (-20.3 +/- 5.2 ms) and RR (-519 +/- 14 ms) interval and P duration (-21.1 +/- 3.0 ms) decreased (P < .001). APDs were significantly associated with a singular positive P wave (OR: 11.0, P < .001) and were more likely to have a monophasic positive T wave (OR: 9.2, P < .001). A smaller RR coupling interval was associated with an increased relative difference in S amplitude (P < .01). Conclusions : Atrial premature depolarizations may lead to changes in QRS and T wave morphology. Knowledge of these changes is important to avoid interpreting certain APDs as VPDs.
- Keywords
- Electrocardiography, Equine, Cardiology, IMPEDANCE CARDIOGRAPHY, EXERCISE, CARDIAC-ARRHYTHMIAS
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Please use this url to cite or link to this publication: http://hdl.handle.net/1854/LU-8161948
- MLA
- Broux, Barbara, et al. “Atrial Premature Depolarization-Induced Changes in QRS and T Wave Morphology on Resting Electrocardiograms in Horses.” JOURNAL OF VETERINARY INTERNAL MEDICINE, vol. 30, no. 4, 2016, pp. 1253–59, doi:10.1111/jvim.13957.
- APA
- Broux, B., De Clercq, D., Decloedt, A., Van Der Vekens, N., Verheyen, T., Ven, S., … van Loon, G. (2016). Atrial premature depolarization-induced changes in QRS and T wave morphology on resting electrocardiograms in horses. JOURNAL OF VETERINARY INTERNAL MEDICINE, 30(4), 1253–1259. https://doi.org/10.1111/jvim.13957
- Chicago author-date
- Broux, Barbara, Dominique De Clercq, Annelies Decloedt, Nicky Van Der Vekens, Tinne Verheyen, Sofie Ven, Bart Pardon, and Gunther van Loon. 2016. “Atrial Premature Depolarization-Induced Changes in QRS and T Wave Morphology on Resting Electrocardiograms in Horses.” JOURNAL OF VETERINARY INTERNAL MEDICINE 30 (4): 1253–59. https://doi.org/10.1111/jvim.13957.
- Chicago author-date (all authors)
- Broux, Barbara, Dominique De Clercq, Annelies Decloedt, Nicky Van Der Vekens, Tinne Verheyen, Sofie Ven, Bart Pardon, and Gunther van Loon. 2016. “Atrial Premature Depolarization-Induced Changes in QRS and T Wave Morphology on Resting Electrocardiograms in Horses.” JOURNAL OF VETERINARY INTERNAL MEDICINE 30 (4): 1253–1259. doi:10.1111/jvim.13957.
- Vancouver
- 1.Broux B, De Clercq D, Decloedt A, Van Der Vekens N, Verheyen T, Ven S, et al. Atrial premature depolarization-induced changes in QRS and T wave morphology on resting electrocardiograms in horses. JOURNAL OF VETERINARY INTERNAL MEDICINE. 2016;30(4):1253–9.
- IEEE
- [1]B. Broux et al., “Atrial premature depolarization-induced changes in QRS and T wave morphology on resting electrocardiograms in horses,” JOURNAL OF VETERINARY INTERNAL MEDICINE, vol. 30, no. 4, pp. 1253–1259, 2016.
@article{8161948, abstract = {{Background : The electrocardiographic differentiation between atrial (APDs) and ventricular (VPDs) premature depolarizations is important. P wave prematurity and normal QRS and T wave morphology generally are used as discriminating criteria for APDs. Hypothesis/Objectives : The aim of this study was to determine whether P, Q, R, S, and T wave amplitude, PQ interval, QRS and P wave duration and P and T wave morphology differ between APDs and sinus beats. To determine the relationship between the RR coupling interval and the change in S wave amplitude between sinus beats and APDs. Methods : Case-control study. From a modified base-apex configuration of 30 horses with APDs at rest, sinus beat and APD associated preceding RR interval, P, PQ and QRS duration and P, R, S, and T wave amplitudes were measured. Linear mixed models and logistic regression were used to determine the effect of APDs on the ECG variables studied. Results : In comparison to sinus beats, APDs were associated with a significant (P < .001) change in P amplitude (-0.03 0.01 mV) and increase in S (0.20 +/- 0.02 mV) and T (0.08 +/- 0.03 mV) amplitude. PQ (-20.3 +/- 5.2 ms) and RR (-519 +/- 14 ms) interval and P duration (-21.1 +/- 3.0 ms) decreased (P < .001). APDs were significantly associated with a singular positive P wave (OR: 11.0, P < .001) and were more likely to have a monophasic positive T wave (OR: 9.2, P < .001). A smaller RR coupling interval was associated with an increased relative difference in S amplitude (P < .01). Conclusions : Atrial premature depolarizations may lead to changes in QRS and T wave morphology. Knowledge of these changes is important to avoid interpreting certain APDs as VPDs.}}, author = {{Broux, Barbara and De Clercq, Dominique and Decloedt, Annelies and Van Der Vekens, Nicky and Verheyen, Tinne and Ven, Sofie and Pardon, Bart and van Loon, Gunther}}, issn = {{0891-6640}}, journal = {{JOURNAL OF VETERINARY INTERNAL MEDICINE}}, keywords = {{Electrocardiography,Equine,Cardiology,IMPEDANCE CARDIOGRAPHY,EXERCISE,CARDIAC-ARRHYTHMIAS}}, language = {{eng}}, number = {{4}}, pages = {{1253--1259}}, title = {{Atrial premature depolarization-induced changes in QRS and T wave morphology on resting electrocardiograms in horses}}, url = {{http://doi.org/10.1111/jvim.13957}}, volume = {{30}}, year = {{2016}}, }
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