Overview Comparison of Heparin Types; Efficacy and Safety Status: Completed Trial end date: 2011-09-01 Target enrollment: Participant gender: Summary Heparin, a blood thinner, is used routinely in Open-heart surgery. Do different brands of this drug have differing clinical effects despite both having exactly the same regulation and marketing specifications? Phase: Phase 4 Details Lead Sponsor: McMaster UniversityTreatments: Calcium heparinHeparin