ECG of the Month

Evan S. Ross 1Department of Clinical Sciences, College of Veterinary Medicine, Kansas State University, Manhattan, KS 66502.

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Jennifer Hall 2VCA West Los Angeles Animal Hospital, Los Angeles, CA 90025.

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Justin D. Thomason 1Department of Clinical Sciences, College of Veterinary Medicine, Kansas State University, Manhattan, KS 66502.

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  • 1. Willis R. Electrocardiography. In: Guide to canine and feline electrocardiography. Hoboken, NJ: John Wiley & Sons Inc, 2018;3556.

  • 2. Jain R, Singh R, Yamini S, et al. Fragmented ECG as a risk marker in cardiovascular diseases. Curr Cardiol Rev 2014;10:277286.

  • 3. Das MK, Maskoun W, Shen C, et al. Fragmented QRS on twelve-lead electrocardiogram predicts arrhythmic events in patients with ischemic and nonischemic cardiomyopathy. Heart Rhythm 2010;7:7480.

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  • 4. Das MK, El Masry H. Fragmented QRS and other depolarization abnormalities as a predictor of mortality and sudden cardiac death. Curr Opin Cardiol 2010;25:5964.

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  • 5. Take Y, Morita H. Fragmented QRS: what is the meaning? Indian Pacing Electrophysiol J 2012;12:213225.

  • 6. Peters S, Trümmel M, Koehler B. QRS fragmentation in standard ECG as a diagnostic marker of arrhythmogenic right ventricular dysplasia-cardiomyopathy. Heart Rhythm 2008;5:14171421.

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  • 7. Das MK, Khan B, Jacob S, et al. Significance of a fragmented QRS complex versus a Q wave in patients with coronary artery disease. Circulation 2006;113:24952501.

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  • 8. Haukilahti MA, Eranti A, Kenttä T, et al. QRS fragmentation patterns representing myocardial scar need to be separated from benign normal variants: hypotheses and proposal for morphology based classification. Front Physiol 2016;7:653.

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  • 9. Pietrasik G, Zareoba W. QRS fragmentation: diagnostic and prognostic significance. Cardiol J 2012;19:114121.

  • 10. Acharya P, Ang JR, Gitler B. Ebstein anomaly with QRS fragmentation on electrocardiogram. J Investig Med High Impact Case Rep 2017;5:2324709616688710.

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  • 11. Hekmat S, Pourafkari L, Ahmadi M, et al. Fragmented QRS on surface electrocardiogram as a predictor of perfusion defect in patients with suspected coronary artery disease undergoing myocardial perfusion imaging. Indian Heart J 2018;70(suppl 3):S177S181.

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  • 12. Sha J, Zhang S, Tang M, et al. Fragmented QRS is associated with all-cause mortality and ventricular arrhythmias in patient with idiopathic dilated cardiomyopathy. Ann Noninvasive Electrocardiol 2011;16:270275.

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  • 13. Basaran Y, Tigen K, Karaahmet T, et al. Fragmented QRS complexes are associated with cardiac fibrosis and significant intraventricular systolic dyssynchrony in nonischemic dilated cardiomyopathy patients with a narrow QRS interval. Echocardiography 2011;28:6268.

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  • 14. Tigen K, Karaahmet T, Gurel E, et al. The utility of fragmented QRS complexes to predict significant intraventricular dyssynchrony in nonischemic dilated cardiomyopathy patients with a narrow QRS interval. Can J Cardiol 2009;25:517522.

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  • 15. Tian Y, Zhang Y, Yan Q, et al. Fragmented QRS complex in healthy adults: prevalence, characteristics, mechanisms, and clinical implications. Int J Heart Rhythm 2017;2:3439.

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  • 16. Kornreich BG, Moïse NS. Right atrioventricular valve malformation in dogs and cats: an electrocardiographic survey with emphasis on splintered QRS complexes. J Vet Intern Med 1997;11:226230.

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  • 17. Kastor JA, Goldreyer BN, Josephson ME, et al. Electrophysiologic characteristics of Ebstein's anomaly of the tricuspid valve. Circulation 1975;52:987995.

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