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Can electrocardiogram and vectorcardiogram differentiate between secundum and ostium-primum types of atrial septal defect?
Can electrocardiogram and vectorcardiogram differentiate between secundum and ostium-primum types of atrial septal defect?
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Electrocardiogram and vectorcardiogram are useful diagnostic tools for differentiating ostium-primum from secundum atrial septal defects based on specific axis deviation and QRS vector orientation patterns.
The electrocardiogram and vectorcardiogram are of great aid in differentiating atrial septal defect of the secundum type from the ostium-primum type. In the latter condition there is left axis deviation in the scalar electrocardiogram and superior orientation of the QRS vector in the sagittal and frontal planes. There are relatively few congenital lesions that lead to the same degree of axis deviation and superior orientation of the QRS vector.
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Beregovich et al. (1960) studied this question.
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