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Studies on blood rheology in patients with primary pulmonary hypertension
Department of Internal Medicine, University Hospital, Lund, Sweden.
Department of Cardiology, University Hospital, Lund, Sweden.
Department of Internal Medicine, University Hospital, Lund, Sweden.
Department of Cardiology, University Hospital, Lund, Sweden.
1991 (English)In: Angiology, ISSN 0003-3197, E-ISSN 1940-1574, Vol. 42, no 10, 836-842 p.Article in journal (Refereed) Published
Abstract [en]

Abstract

The rheologic properties of blood were studied in 6 patients with primary pulmonary hypertension (PPH) and compared with those of a control group of 10 healthy subjects. Blood viscosity was studied with a rotational viscometer and blood cell deformability with a filtrometer giving values for clogging particles (CP) and red cell transit time (RCTT). Blood viscosity at varying shear rates was found to be increased both at natural (p<0.025-0.005) and standardized hematocrit, 45% (p<0.05 at 40 s-1) in patients with PPH. Red cell deformability was reduced as indicated by a significant increase of RCTT (p<0.01). Increased values for hematocrit (p<0.001), hemoglobin concentration (p< 0.001), and erythrocyte count (p<0.005) were found and decreased values for mean corpuscular hemoglobin concentration (MCHC) (p< 0.025) and HDL cholesterol (p<0.005). Plasma viscosity, white cell deformability, white cell count, mean corpuscular volume (MCV), and plasma fibrinogen concentration did not significantly differ from the values found in the control group. It is concluded that patients with PPH have impaired blood rheology. The hemorheologic abnormalities in these patients may be of hemodynamic significance.

 

Place, publisher, year, edition, pages
New York, USA: Westminster Publications, Inc. , 1991. Vol. 42, no 10, 836-842 p.
Keyword [en]
Blood viscosity; Echocardiography; Erythrocyte deformability; Heart Catheterization; Hematocrit; Hypertension; Pulmonary; Reology
National Category
Medical and Health Sciences
Research subject
Natural Science, Biomedical Sciences; Health and Caring Sciences, Caring Science
Identifiers
URN: urn:nbn:se:lnu:diva-11658OAI: oai:DiVA.org:lnu-11658DiVA: diva2:416436
Available from: 2011-05-11 Created: 2011-05-11 Last updated: 2011-09-14Bibliographically approved

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Persson, Sylvi Ulrika
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CiteExportLink to record
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Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
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More styles
Language
  • de-DE
  • en-GB
  • en-US
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  • nn-NB
  • sv-SE
  • Other locale
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Output format
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