Right ventricular dominance ups risk post-Fontan: study

Registry data shed light on patients at most risk of poor outcomes with atrioventricular valve regurgitation

Moderate or severe atrioventricular valve regurgitation after a Fontan operation raises the risk of death or transplantation, Australian doctors have found, but only in patients with right ventricular dominance.

Results from the retrospective study suggest that patients’ baseline characteristics — namely right ventricular (RV) dominance — rather than atrioventricular valve (AVV) surgery itself are associated with poor outcomes.

Given the “devastating natural history” of the

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