The Journal of Thoracic and Cardiovascular Surgery, Vol 71, 291-294, Copyright © 1976 by The American Association for Thoracic Surgery and The Western Thoracic Surgical Association
Changes in extravascular lung water during venovenous perfusion
RH Demling, RE Hicks and LH Edmunds Jr
The accumulation of extravascular lung water was related to changes in
plasma colloid osmotic pressure and pulmonary hydrostatic pressures in 12
normal dogs and 13 dogs that had venovenous perfusion for 2 hours at 45 to
70 ml. per kilogram per minute. The venovenous perfusion system included a
membrane oxygenator and a roller pump. Net intravascular filtration
pressure was calculated from plasma colloid osmotic pressure and pulmonary
hydrostic pressures. Rapid accumulation of extravascular lung water
occurred in control and bypass animals when net intravascular filtration
pressure exceeded zero. At lower filtration pressures, venovenous perfusion
did not affect accumulation of extravascular lung water.