The Influence of Erythrocyte Concentration on the Blood Coagulation ; In the Cases of Males, Non-pregnant and Pregnant Females

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  • JUEN,Hiroyasu
    Department of Obstetrics and Gynecology, Japan Self-Defense Forces Sendai Hospital:(Present address) Department of Obstetrics and Gynecology, Japan Self-Defense Forces Central Hospital

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  • 赤血球濃度が血液凝固に及ぼす影響 : 男性, 非妊娠女性および妊婦について

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Objective : The effect of erythrocytes on the initiation time of blood coagulation was investigated. Methods : The initial process of blood coagulation was measured with a damped oscillation rheometer. Blood samples from 20 healthy males, 20 healthy non-pregnant females and 20 normal pregnant females were examined. Results : The initiation time of coagulation (Ti) of males and non-pregnant females was shortened according to the concentration of erythrocytes ; it especially showed a significant difference at the boundary of 5.0×10^6/mm^3 (p<0.01). Ti of normal pregnant females was essentially shorter than that of concentrated samples from the other two groups and showed no effect exerted by hemoconcentration. Conclusions : The results suggest that erythrocytes may play an important role in accelerating the initial coagulatoion reaction or blood and that the erythrocyte membrane might play a substantial role in the intrinsic pathway of blood coagulation.

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