a dose of 5,000 iu mucous heparin sodium given two hours preoperatively and for five days post operatively prevented fatal pulmonary embolism in all 156 patients so treated , whereas out of 144 patients in the unheparinized group 6 ( 4.2 % ) died of pulmonary embolism .
C0037513
heparin sodium
C0034065
pulmonary embolism