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Diameters (given as z scores) of the central right (RPA) and central left pulmonary artery (LPA) at the initial cardiac catheterisation (IN), before total cavopulmonary connection (TCPC) (PRE), and at the follow up study 3.5 years after TCPC (FU) in patients of group II. For both pulmonary arteries the changes in the diameters between the three points were significant (p < 0.02); the difference between IN and FU was significant only for the right pulmonary artery (p < 0.03).
