Abstract
This clinical study was designed to compare Shiley M-2000 membrane oxygenator, Capiox II membrane oxygenator and Shiley 100A bubble oxygenator as to blood gas, platelet counts, β-TG changes and plasma free hemoglobin level during and after cardiopulmonary bypass (CPB). The following results were obtained.
1. O2 transfer rate was higher in membrane oxygenator than Shiley 100A bubble oxygenator but other blood gas data such as PaCO2, pH did not show any significant difference in three groups. 2. The change of platelet counts before and during CPB was no significant difference among these groups, however, patelet counts increased on the 1st post-operative day in the cases with membrane oxygenators. 3. There were no significant differences in β-TG value and plasma free hemoglobin levels among these three groups. These findings suggested that membrane oxygenators had more superiority than bubble oxygenator concerning to platelet counts. But thereafter, precise difference among hemolysis, β-TG could not be obtained in the clinical cases.
