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Review
. 2011 Jun;32(5):557-61.
doi: 10.1007/s00246-011-9954-3. Epub 2011 Mar 25.

Pulmonary vascular resistance and viscosity: the forgotten factor

Julien I E Hoffman  1
Affiliations
Review

Pulmonary vascular resistance and viscosity: the forgotten factor

Julien I E Hoffman. Pediatr Cardiol. 2011 Jun.

Abstract

Calculating pulmonary vascular resistance is important in many fields of medicine. Although the influence of hematocrit on calculated resistance has been known for many years, it is rare to find the appropriate corrections in published articles. This review discusses the relationship between viscosity and resistance and shows how the effect of viscosity can be allowed for by calculating hindrance or relative viscosity.

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