Does Roux-en-Y gastric bypass surgery affect warfarin dosages and INR in patients taking warfarin?
Warfarin dosages tend to decrease after RYGB surgery, highlighting the need for increased INR monitoring in these patients.
Warfarin dosages tended to decrease after RYGB surgery, in agreement with previously published literature. These findings suggest the need for increased INR monitoring and patient education for patients taking warfarin after RYGB surgery.
Steffen et al. (Tue,) studied this question.