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Child cardiac surgery encouraged

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Repairing holes in a child’s heart, where there are few or no symptoms, may be more important than previously thought, according to a US study that used pigs as models.

This found that incidences of restrictive ventricular septal defect led to molecular changes and right ventricular diastolic dysfunction, where the ventricle becomes stiff and has difficulty filling with blood.

Patients with a patent septal defect but little or no haemodynamic aberrations are usually observed, in the hope that the defect will close without surgery.

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