Patent ID: 8048043

Claim:
A method for treating a respiratory distress syndrome in a spontaneously breathing pre-term infant in need of such treatment, said method comprising the steps of: a) applying nasal Continuous Positive Airway Pressure (nCPAP) with a nasal device to said infant at a pressure of from 1 to 12 cm water; b) introducing a tube selected from the group consisting of gastric tube, nasogastric tube, arterial or suction catheter and having an outer diameter of 5 Fr into the trachea of said infant; c) administering poractant alfa pulmonary surfactant suspended in a pharmaceutically acceptable aqueous medium through said tube and d) removing said tube wherein the surfactant suspension is applied at a concentration of from 40 mg/ml to 80 mg/ml and has a viscosity of between 5 and 15 mPas.