Li Q, et al. - Experts sought to assess the safety and acute haemodynamic effects of inhaled iloprost in children with pulmonary arterial hypertension (PAH) associated with congenital heart disease (CHD). In children with PAH associated with CHD, acute inhalation of iloprost resulted in a significant improvement in hemodynamic parameters. In spite of this, few patients achieved strict criteria of operability, highlighting the importance of early screening and timely repair of CHD.