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"Exploring Cardiac Vector Propagation in Acute Myocardial Infarction: A Spatial Velocity Perspective"

Ghosal, T.; Hembram, A.; Ahmed, I.; Goswami, D. P.; Bandyopadhyay, A.; Sengupta, A.

2024-05-16 cardiovascular medicine
10.1101/2024.05.15.24307427 medRxiv
Show abstract

AimsTo objectively characterize the spatial-velocity dynamics of the QRS-loop in the vectorcardiogram (VCG) of patients with acute myocardial infarction (AMI). MethodsVCG was constructed as space curve from three orthogonal ECG leads of 25 healthy individuals and 50 AMI patients. Spatial-velocity (SV) of the dynamic QRS loop was recorded, along with component attributes such as changing spatial distance (SD) and magnitude. ResultsDecreased SV and SD and altered spatial propagation patterns of ventricular vectors in AMI was recorded, with changes in specific axes based on infarct location. Reduced left-ventricular ejection-fraction indicates systolic dysfunction in AMI. ConclusionAltered spatial propagation patterns of vectors and ventricular dysfunction may be explained by complex interplay between mechanical and electrical factors in AMI. DeclarationO_LIThe present manuscript has been submitted in the journal Future Cardiology, and currently under peer review C_LIO_LINone of the manuscripts contents have yet been published. C_LIO_LIAll authors have read and approved the manuscript and approved its submission to MedRxiv, as preprint server. They also agreed the order of authorship. C_LI

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