Key result
Right ventricular overloading in ASD showed a higher incidence of clockwise horizontal QRS loop inscription than MS, and frequent bizarre left sagittal QRS loop configurations.
Population
22 cases of ostium secundum type of atrial septal defect proved by cardiac catheterization and/or surgery…
Comparison
Vectorcardiogram using the Frank system and… vs Normal young men
Design
Cross-sectional
Authors
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May differentiate RV overload in ASD from MS on vectorcardiography; hypothesis-generating and requires prospective validation before clinical use.
Observational (n=22)
Vectorcardiogram analysis reveals distinct QRS loop configurations that can characterize right ventricular diastolic overloading in patients with atrial septal defect.
M. Tetsuou (1969) conducted an observational in Right ventricular overloading (Atrial septal defect and mitral stenosis) (n=22). Right ventricular overloading (ASD and MS) vs. Normal young men was evaluated on Vectorcardiographic findings (QRS and T loop inscription directions). Right ventricular overloading in ASD showed a higher incidence of clockwise horizontal QRS loop inscription than MS, and frequent bizarre left sagittal QRS loop configurations.
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