Establishment of the deuterium oxide dilution method as a new possibility for determining the transendothelial water permeability.

Increase in transendothelial water permeability is an essential etiological factor in a variety of diseases like edema and shock. Despite the high clinical relevance, there has been no precise method to detect transendothelial water flow until now. The deuterium oxide (DO) dilution method, already established for measuring transepithelial water transport, was used to precisely determine the transendothelial water permeability.