Table 6.

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

Variable
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
 IABP, VAD, ECMO, or CPS
 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.