[Heparin resistance during cardiopulmonary bypass].


A 74-year-old man was scheduled for coronary artery bypass graft surgery with cardiopulmonary bypass. After intravenous heparin (200 U.kg-1), the activated clotting time (ACT) increased from 124 to 436 sec. However, it decreased to 128 sec immediately after cardiopulmonary bypass. The bypass was discontinued because the addition of heparin (200 U.kg-1… (More)


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