25 infants of mothers who do not have breast milk or do not want to use the skimming technique. These infants will receive our standard of care - specialized formula for the treatment of chylothorax

25 infants of mothers who have breast milk and who also want to learn the skimming technique will be taught the technique. The infants will then receive the skimmed breast milk for the treatment of chylothorax

Fortified skimmed mother's milk will be given to the skimmed mother's milk group. The fortifier is a standard fortifier we use in our population

Fluid around the lungs is assessed by chest radiographs (x-rays) as per our usual standard of care. Cloudy fluid will be sent for analysis (chylomicrons, cell count, lymphocytes, and triglycerides) to confirm the diagnosis. The date of diagnosis, the date of chest tube removal, and the date of resolution of effusion by chest xrays

All patients receive a standard chest x-ray prior to discharge from the hospital and again in two weeks at their follow up appointment. If symptoms of respiratory difficulty occur prior to or following this time, additional chest x-rays may be obtained based on exam findings and clinical judgment. The date of recurrence of effusion will be recorded as will the date of chest tube insertion if required.