Abstract
We analyzed the serial changes of various hematological parameters during early atage of cardiopulmonary bypass (CPB) in order to evaluate the difference of hematological compatibility between extra- (Group 1) and intracapillary type hollw fiber oxygenator (Group 2). No significant difference of qualitive and quantitative changes of platelet were noted between two groups, however, in Group 2, the accentuation of platelet release reaction was significantly suppressed in the early stage of CPB. In Group 1, the plasma levels of FPA and FPB β showed temporal elevations 5 minutes after initiation of CPB. It is concluded that extracapillary type hollow fiber oxygenator is superior to intracapillary type in regard to the hematological compatibility in the early stage of CPB.
