Relationship between capillary wall structure and "effective" transcapillary osmotic pressure

Michael E. Yablonski, David G Levitt

Research output: Contribution to journalArticlepeer-review

3 Scopus citations


The colloid osmotic pressure difference across the capillary wall should be determined by the protein concentration difference (ΔCR) across just the narrow restricted region of the capillary interendothelial cleft and not the concentration difference (ΔCT) across the whole wall as is usually assumed. During capillary filtration, ΔCR should not equal ΔCT and the assumption that the colloid osmotic pressure difference is proportional to ΔCT will be in error. The theoretical magnitude of this error for an idealized cleft is determined.

Original languageEnglish (US)
Pages (from-to)97-99
Number of pages3
JournalMicrovascular Research
Issue number1
StatePublished - Jan 1973


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