High-resolution electrocardiography in the diagnosis of arrhythmogenic right ventricular cardiomyopathy in Boxer dogs

Ciência Rural

Evandro Zacché Pereira²  Thais Cristine Alves Assumpção¹  Ana Paula Gering¹  Fábio Nelson Gava²  Edna Mireya Gómez Ortiz²  Aparecido Antonio Camacho¹ 

[1] ,Universidade Estadual Paulista (UNESP)Jaboticabal SP ,Brasil

关键词: late potential;    ventricular arrhythmia;    dog;    potencial tardio;    arritmia ventricular;    cães;   

DOI  :  10.1590/S0103-84782013000600025

来源: SciELO

【 摘 要 】

To evaluate the reliability of high-resolution electrocardiography in the diagnosis of arrhythmogenic right ventricular cardiomyopathy in Boxers, 20 dogs with no structural cardiac alterations at echocardiographic examination were grouped on the basis of frequency of ventricular arrhythmias, evaluated by 24-hour ambulatory ECG, and undergoing a high-resolution electrocardiography. High frequency QRS duration, duration of terminal QRS complex less than 40µV (LAS40) and root mean square voltage of the terminal 40 milliseconds of the QRS complex (RMS40) were measured. Differences in high-resolution ECG variables were not observed between groups. Therefore, the results of this investigation suggest that high-resolution electrocardiography is not a useful method for the diagnosis of arrhythmogenic right ventricular cardiomyopathy in Boxers without detectable myocardial alterations or systolic dysfunction.

【 授权许可】

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