Cardiac resynchronisation therapy in paediatric and congenital heart disease: differential effects in various anatomical and functional substrates.

After doing so the calculated overall increase in systemic ventricular EF/fractional area of change and decrease in the z score of the systemic ventricular end-diastolic dimension still remained highly significant with +11.2 (13.7)% and median −1.3, respectively (p<0.001 for both).

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