【摘要】 <正> 血液流变学是应用力学的基本原理和方法来研究阐明血液流动的基本规律,观察血液的异常流动对机体的影响,为了解某些疾病的发生、发展及预后有着重要意义。按照泊肃叶氏方程(Q=(△P·π·r~4]/IV),血流更多还原

【Abstract】 In recent years a large number of studies have focused on the importance of bloodrheology during and after acute myocardial infarction （AMI）.Serial data of bloodrheology was simultaneously measured in 30 patients with AMI;and 32 healthysubjects as control;measurments included blood and plasma viscosity hematocrit andplasma protein concentrations.The blood viscosity was elevated on admission andfor the first five days after AMI.However,the cause of the elevated viscosity waschanged as a function of time after AMI.During the first day of admission,the highblood viscosity was mainly attributable to high hematocrit values.Thereafter,thehematocrit fell,but blood viscosity remained high.Blood viscosity after the first dayof AMI,which is attributed to the increase in plasma viscosity and plasma proteinconcentrations,which can be explained as elevation of α₁ α₂ βγglobulin and fibri-nogen concentrations.Patients with higher blood viscosity on admission had a signifi-cantly higher incidence of complications,ie,shock,thromboembolism and left ventri-cular failure.Hence,the present study suggests that hemodilution therapy is benefi-cial to patients with high blood viscosity.更多还原