Pulmonary Vascular Resistance and Viscosity: The Forgotten Factor

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 viscosi...

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Veröffentlicht in:	Pediatric cardiology 2011-06, Vol.32 (5), p.557-561
1. Verfasser:	Hoffman, Julien I. E.
Format:	Artikel
Sprache:	eng
Schlagworte:	Animals Blood Flow Velocity - physiology Blood Viscosity - physiology Cardiac Surgery Cardiology Hematocrit Humans Hypertension Hypertension, Pulmonary - physiopathology Medicine Medicine & Public Health Pulmonary Artery - physiopathology Pulmonary Wedge Pressure - physiology Review Article Vascular Resistance - physiology Vascular Surgery
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Beschreibung
Zusammenfassung:	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.
ISSN:	0172-0643 1432-1971
DOI:	10.1007/s00246-011-9954-3