Impact of initial norwood shunt type on right ventricular deformation: the single ventricle reconstruction trial.

•Shunt types at Norwood procedure were compared using speckle-tracking echocardiography.•Global and regional deformation was compared at 14 months of age.•There were no significant differences between shunt groups.•Some differences approached significance for decreased indices in the RVPAS group.•These differences may represent early changes resulting from the ventriculotomy.