Key result
High atrial shunt velocity on Doppler echocardiography predicts elevated invasive transatrial pressure gradient.
Why the study?
An unusually high atrial shunt flow velocity pattern was observed in a patient with an iatrogenic atrial septal defect during transatrial septal approach to aortic valvuloplasty, and its Doppler echocardiography correlation with hemodynamic measurements was unclear.
Case Report (n=1)
May support noninvasive transatrial gradient estimation in iatrogenic ASD; leaves open validation in larger cohorts before clinical adoption.
An unusually high atrial shunt flow velocity pattern was recorded in a patient whose atrial septal defect was created iatrogenically during a transatrial septal approach to aortic valvuloplasty. The flow velocity pattern measured by Doppler echocardiography was predictive of the high transatrial pressure gradient noted later at catheterization.
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Goldfarb et al. (1988) conducted a case report in Iatrogenic atrial septal defect (n=1). Doppler echocardiography was evaluated on Transatrial pressure gradient. Doppler echocardiography revealed an unusually high atrial shunt flow velocity pattern that predicted a high transatrial pressure gradient observed during catheterization.
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