In vivo evaluation of peripheral vascular resistance based on Poiseuille’s law

Kazuhiro Yokokawa; Saki Hamashima; Masahiro Shibata

doi:10.11239/jsmbe.52.O-432

In vivo evaluation of peripheral vascular resistance based on Poiseuille’s law

Kazuhiro Yokokawa, Saki Hamashima, Masahiro Shibata

Research output: Contribution to journal › Article

Abstract

To elucidate that Poiseuille's law can be applied in vivo microcirculation, we tried to analyze the total peripheral vascular resistance (R<inf>t</inf>) and single arteriolar resistance (R<inf>a</inf>) obtained from in vivo animal experiments. R<inf>t</inf> and R<inf>a</inf> values were quantified by measurements of systemic blood pressure (BP) , and by direct observation of microcirculation simultaneously. During L-NAME induced vasoconstriction, systemic BP significantly increased from 91 ± 8 mmHg to 114 ± 9 mmHg, while arterial diameter decreased from 137 ± 31 μm to 129 ± 30 μm (n = 14). The R<inf>t</inf> and R<inf>a</inf> values during vasoconstriction increased in 23.9 ± 10.4 % and 22.0 ± 9.9 %, respectively, which there were no significant differences. These result confirmed the Poiseuille's law is acceptable to apply for in vivo microcirculation.

Original language	English
Pages (from-to)	O-432-O-433
Journal	Transactions of Japanese Society for Medical and Biological Engineering
Volume	52
DOIs	https://doi.org/10.11239/jsmbe.52.O-432
Publication status	Published - 2014 Aug 17

Keywords

Microcirculation
Poiseuille law
Total peripheral vascular resistance

ASJC Scopus subject areas

Biomedical Engineering

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Yokokawa, K., Hamashima, S., & Shibata, M. (2014). In vivo evaluation of peripheral vascular resistance based on Poiseuille’s law. Transactions of Japanese Society for Medical and Biological Engineering, 52, O-432-O-433. https://doi.org/10.11239/jsmbe.52.O-432

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abstract = " To elucidate that Poiseuille's law can be applied in vivo microcirculation, we tried to analyze the total peripheral vascular resistance (Rt) and single arteriolar resistance (Ra) obtained from in vivo animal experiments. Rt and Ra values were quantified by measurements of systemic blood pressure (BP) , and by direct observation of microcirculation simultaneously. During L-NAME induced vasoconstriction, systemic BP significantly increased from 91 ± 8 mmHg to 114 ± 9 mmHg, while arterial diameter decreased from 137 ± 31 μm to 129 ± 30 μm (n = 14). The Rt and Ra values during vasoconstriction increased in 23.9 ± 10.4 % and 22.0 ± 9.9 %, respectively, which there were no significant differences. These result confirmed the Poiseuille's law is acceptable to apply for in vivo microcirculation.",

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author = "Kazuhiro Yokokawa and Saki Hamashima and Masahiro Shibata",

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