Author: Sana Ullah, MB ChB, FRCA - Children’s Medical Center, Dallas, TX.


A nine-month-old male infant with severe idiopathic pulmonary hypertension (PHTN) on maximal medical therapy is dyspneic with feeding and has failure to thrive. He is on 1 L nasal cannula oxygen and baseline room air oxygen saturation is 88%. Which of the following is the MOST APPROPRIATE immediate intervention to improve survival to lung transplantation?