- Patients expected to receive in-hospital pain medication for pain after coronary
artery bypass graft surgery for at least 3 full days and pain medication over a 10-day
period
- New York Heart Association Class I to III or cardiac ejection fraction of at least 35%
before surgery
- Body mass index of less than or equal to 40 kg/m2 and weight of >55 kg
- Patients scheduled to undergo an isolated (bypass grafting only without valve
replacement, significant aortic reconstruction, or ventriculoplasty) primary CABG
surgery via median sternotomy, using cardiopulmonary bypass
- Patient has undergone or is going to have emergency coronary artery bypass graft
surgery or surgery without cardiopulmonary bypass procedure
- Symptomatic peripheral vascular disease
- Heart attack within 48 hours of surgery