In addition to many of the widely accepted risk factors of bronchopulmonary dysplasia (BPD), such as prematurity, oxygen toxicity, barotrauma, and infection, the amount of fluid intake during the early phase of life has recently been reported to
be
an
important factor, especially the amount of colloid. Forty-one premature infants who were admitted to the NICU of Severance Hospital, Yonsei University College of Medicine between Jan. 1990 and Jun. 1992 and treated for respiratory difficulty with
mechanical ventilation and restrictive fluid therapy were included in the study. fourteen were diagnosed as BPD and the rest were grouped as Non-BPD. We confirmed prematurity, low birth weight, high oxygen concentration, high ventilator pressures
and
rates, perinatal asphyxia, acidosis, and low blood pressures as risk factors. However, with restrictive fluid therapy that we have used, there was no difference in the amount of total fluid, of crystalloid, or of colloid between BPD and Non-BPD
groups,
as were the urine output, serum electrolyte concentrations, and percent body weight change. The amount of colloid when used for the maintenance of adequate blood pressures and for the prevention and treatment of hypovolemia, oliguria, anemia of
sepsis
under the scheme of restrictive fluid therapy would not influence adversely in the development of BPD. Instead, the amount of colloid used may imply the severity of illness of the patient; that is, the more severe the condition of the patient the
more
the amount of colloid used.
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