Why the study?
Does the presence of a superior QRS axis on ECG aid in the differential diagnosis of congenital heart disease in infants under 3 months of age?
Population
473 infants under the age of 3 months referred to a paediatric cardiological unit
Design
Cross-sectional
Authors
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May aid differential diagnosis of congenital heart defects in young infants; extends observational evidence but warrants prospective trials.
Does the presence of a superior QRS axis on ECG aid in the differential diagnosis of congenital heart disease in infants under 3 months of age?
Recognition of a superior QRS axis on ECG, combined with clinical and radiographic findings, provides a useful diagnostic aid for identifying specific congenital heart diseases in early infancy.
Shinebourne et al. (1974) studied this question.
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