Pattern of pulmonary venous flow in patients with ostium secundum atrial septal defect.

Aims: The purpose of this study is to determine the possible influence of a left to right atrial shunt over the pulmonary venous flow pattern in children with ostium secundum atrial septal defect (ASD).

Methods And Results: Complete two-dimensional, spectral Doppler and colour flow Doppler examination were undertaken to examine the pulmonary vein flow pattern in 74 patients with ASD. This group was compared with a control group of 49 non-cardiological patients of similar ages and gender.