Meinst du per nasogastraler Sonde?
"Some surgeons advocate administration of heavy cream or methylene blue-stained milk products through the orogastric tube, to improve visualization of the thoracic duct in the chest. The fat from this is emulsified and absorbed into the lacteals. This then travels up the thoracic duct through the chest and aids in identification of the thoracic duct plexus."
aus: https://www.sciencedirect.com/scienc...22294216300800