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The Annals of Thoracic Surgery, Vol 54, 1168-1171, Copyright © 1992 by The Society of Thoracic Surgeons
HW Unruh
Belzer's University of Wisconsin cold storage solution (UWCSS) has proved
useful in extending the shelf life of organs in extrathoracic
transplantation and more recently has also been shown to be useful in heart
transplantation. I investigated the effect of 4 degrees C UWCSS on the
vascular and interstitial properties of the lung to see whether it affected
the pulmonary microcirculation or caused pulmonary edema. Infusion of UWCSS
was associated with a slight decrease in oxygen tension, but the final
oxygen tension was no different from that previously demonstrated with
Euro-Collins solution. Vascular conductance was not affected by UWCSS, but
average vascular closure increased slightly, indicating that increased
vascular tone occurs. This effect is similar to but less than that
previously observed with Euro-Collins solution. Based on comparisons of wet
to dry weight ratios, estimates of interstitial compliance, transvascular
fluid flux, and microvascular filtration coefficient, it does not appear
that UWCSS causes pulmonary edema. Further investigation into the
usefulness of UWCSS in lung transplantation is therefore warranted.
ARTICLES
Vascular and interstitial effect of University of Wisconsin solution on canine lung
Department of Surgery, Faculty of Medicine, University of Manitoba, Winnipeg, Canada.
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