Clinical value of aVR lead in diagnosis of auricular fibrillation combined with ventricular tachycardia
ZHANG Jun
JIANG Xue-Jun
Abstract：Objective To explore clinical value of aVR lead in diagnosis of atrial fibrillation combined with ventricular tachycardia.Methods 110 auricular fibrillation patients with 3-5 abnormal wide QRS wave in People’ s Hospital of Wuhan University were enrolled. Using aVR lead to determine whether it is ventricular tachycardia or supraventricular tachycardia. Then diagnosis of ventricular tachycardia and results of intraventricular aberrant conduction of 282 isolated wide QRS wave in dynamic electrocardiogram of subjects by traditional method or aVR lead were compared.Results The diagnostic sensitivity of ventricular tachycardia was 88.54%; the diagnostic specificity was 85.71%, and the diagnostic accuracy was 88.18%. The accordance rates of traditional method and aVR lead in diagnosis of ventricular tachycardia were list in descending order: with non-triphasic wave or polyphasic wave (95.04%), with compensatory like pause (94.56%), with no long cycle-short cycle (84.52%), with no more than 7 same leads of starting vector (52.30%). The accordance rates of traditional method and aVR lead in diagnosis of intraventricular aberrant conduction were list in descending order: with no long cycle-short cycle (93.02%), with triphasic wave or polyphasic wave (79.06%), with more than 10 same leads of starting vector (72.09%), with no compensatory like pause (25.00%).Conclusion The method of aVR lead is convenient practical in differential diagnosis of ventricular tachycardia and intraventricular aberrant conduction, but it still has some limitations. It needs to be used in combination with traditional method.
Keywords：aVR leadatrial fibrillationventricular tachycardia
Publication Date：2016-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：3( 759-761 )