Table 6.

The STS Congenital Heart Surgery Database Mortality Risk Model: List of Included Variables for Which the Model Adjusts

Age group
Primary procedure*
Weight (neonates and infants)
Prior cardiothoracic operation
Any noncardiac congenital anatomic abnormality
Any chromosomal abnormality or syndrome
Prematurity (neonates and infants)
Preoperative factors
 Preoperative/preprocedural mechanical circulatory support
 Shock, persistent at time of surgery
 Mechanical ventilation to treat cardiorespiratory failure
 Renal failure requiring dialysis or renal dysfunction
 Preoperative neurological deficit
 Any other preoperative factor
  • CHSD indicates congenital heart surgery database; CPS, mechanical cardiopulmonary support system; ECMO, extracorporeal membrane oxygenation; IABP, intra-aortic balloon pump; STAT, The Society of Thoracic Surgeons–European Association for Cardiothoracic Surgery Congenital Heart Surgery Mortality Categories; STS, Society of Thoracic Surgeons; and VAD, ventricular assist device.

  • * The model adjusts for each combination of primary procedure and age group. Coefficients obtained via shrinkage estimation with STAT mortality category as an auxiliary variable.

  • Any other preoperative factor is defined as any of the other specified preoperative factors contained in the list of preoperative factors in the data collection form of the STS CHSD.

  • Reproduced from Jacobs and Jacobs79 with permission of the publisher. Copyright ©2015, World Society for Pediatric and Congenital Heart Surgery.