Table 2. The Society of Thoracic Surgeon quality measures.

1. Perioperative medical care (all or none process bundle)
a. Preoperative β-blockade
b. Discharge with aspirin
c. Discharge with β-blockade
d. Discharge with anti-lipid therapy
2. Operative care (process)
a. Use of at least one internal mammary artery
3. Risk-adjusted operative mortality
4. Postoperative morbidity: absence of any serious complication
a. Renal insufficiency
b. Deep sternal wound infection
c. Re-exploration for any cause
d. Stroke
e. Prolonged ventilation/intubation