The Society of Thoracic Surgeons

Annual procedural volume of three surgeries: isolated CABG surgery, valve surgery, and valve + CABG surgery.

Surgical volume for pediatric and congenital heart surgery: total programmatic volume and programmatic volume stratified by the 5 Society of Thoracic Surgeons - European Association for Cardio-Thoracic Surgery Congenital Heart Surgery Mortality Categories (STAT Mortality Categories), a multi-institutional validated complexity stratification tool

Percent of patients aged 18 years and older undergoing cardiac surgery who received prophylactic antibiotics within one hour of surgical incision or start of procedure if no incision was required (two hours if receiving vancomycin or fluoroquinolone)

Percent of patients undergoing isolated CABG who received an IMA graft.

Percentage of patients aged 18 years and older undergoing isolated coronary artery bypass graft (CABG) who received an internal mammary artery (IMA) graft