Key result
Differential diagnosis of ventricular premature beats and aberrant QRS complexes with complete right bundle branch block can be facilitated by assessing the rates of myocardial coverage by excitation and the similarity of the initial parts of narrow and wide QRS complexes.
Why the study?
Does the analysis of pseudo vector dynamics and initial QRS parts improve the differential diagnosis of ventricular premature beats and aberrant QRS complexes with complete right bundle branch block?
Does the analysis of pseudo vector dynamics and initial QRS parts improve the differential diagnosis of ventricular premature beats and aberrant QRS complexes with complete right bundle branch block?
Advanced vectorcardiographic analysis of the initial 30 ms of the QRS complex may improve the differentiation between ventricular ectopy and aberrant conduction with right bundle branch block morphology.
May aid ECG differentiation of VPBs from aberrancy in RBBB; leaves open prospective validation before clinical adoption.
Approaches to the differential diagnosis of ventricular premature beats and aberrant QRS complexes with a picture of complete right bundle branch block are considered, based on the assessment of the rates of myocardial coverage by excitation, the similarity, and differences in the initial parts of “narrow” and “wide” QRS complexes, the presence of a low-amplitude onset of the QRS complex in several leads.
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Медведев et al. (2023) conducted a review in Ventricular premature beats and aberrant QRS complexes with complete right bundle branch block. Electrocardiographic and vectorcardiographic criteria was evaluated. Differential diagnosis of ventricular premature beats and aberrant QRS complexes with complete right bundle branch block can be facilitated by assessing the rates of myocardial coverage by excitation and the similarity of the initial parts of narrow and wide QRS complexes.
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