Key result
In children with an interatrial communication and right heart obstruction, right-to-left shunting occurs primarily during ventricular diastole, driven largely by right atrial contraction.
Population
Children with right-to-left shunting at the atrial level in the presence of right heart obstruction
Design
Case_series
Authors
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May inform atrial timing in congenital shunt assessment; leaves open relevance to modern interventions.
Observational
Right atrial contraction is the primary driver of right-to-left interatrial shunting in children with complete right heart obstruction.
Levin et al. (1970) conducted an observational in Obstruction of the tricuspid and pulmonic valves with interatrial shunting. Right heart obstruction was evaluated on Interatrial pressure-flow dynamics. In children with an interatrial communication and right heart obstruction, right-to-left shunting occurs primarily during ventricular diastole, driven largely by right atrial contraction.
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