RT Journal Article SR Electronic T1 When patients on warfarin need surgery JF Cleveland Clinic Journal of Medicine JO Cleve Clin J Med FD Cleveland Clinic SP 973 OP 984 VO 70 IS 11 A1 Jaffer, Amir K. A1 Brotman, Daniel J. A1 Chukwumerije, Nkem YR 2003 UL http://www.ccjm.org/content/70/11/973.abstract AB When a patient who has been taking warfarin long-term needs to undergo surgery, how to manage his or her anticoagulation is controversial. We believe most patients should stop taking warfarin 5 days before elective surgery, and most do not need to receive heparin in the perioperative period as a bridge to surgery.