Premium
Maternal blood viscosity and uteroplacental blood flow velocity waveforms in normal and complicated pregnancies
Author(s) -
STEEL S. A.,
PEAKCE J. M. F.,
NASH G.,
CHRISTOPHER B.,
DORMANDY J.,
BLAND J. M.
Publication year - 1988
Publication title -
bjog: an international journal of obstetrics and gynaecology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.157
H-Index - 164
eISSN - 1471-0528
pISSN - 1470-0328
DOI - 10.1111/j.1471-0528.1988.tb06547.x
Subject(s) - blood flow , hagen–poiseuille equation , blood viscosity , viscosity , vascular resistance , flow resistance , blood circulation , flow (mathematics) , hemodynamics , ultrasound , medicine , cardiology , mechanics , materials science , physics , thermodynamics , radiology , traditional medicine
Summary. According to the Poiseuille‐Hagen law, viscosity influences flow resistance. A possible effect of blood viscosity upon the resistance index of the uteroplacental circulation as measured by continuous wave Doppler ultrasound was investigated in 50 pregnant women. It was found that blood viscosity variables explained only about 10% of the variation in the resistance index in all patients, which was not statistically significant. It is suggested, therefore, that the vascular contribution to flow resistance may be more important.