Readmissions for Isolated Coronary Artery Bypass Graft (CABG) Complications

This report uses data from the California Coronary Artery Bypass Graft (CABG) Outcomes Reporting Program (CCORP) to provide comparisons of readmissions due to isolated CABG complications from 2018 to 2019. These years are the most recently available data that is used by CCORP in its mandated annual performance reporting.

Relevant post-isolated CABG complications include deep sternal infections, post-operative atrial fibrillation, post-operative dialysis, post-operative renal failure, post-operative stroke, prolonged ventilation, re-operation for bleed, and reintervention for myocardial ischemia. The visualization includes the cases where any of the above complications were present and the cases where two or more complications were present.

These comparisons can be further stratified by different categories, including payer type and patient characteristics, such as Sex, Race, and Age. Users can filter to select these different categories. Race is delineated into two categories—white and non-white—due to low volume in some racial groups and to meet the requirements of the CHHS De-Identification Guidelines.

This visualization is intended to help healthcare providers understand high-risk and low-risk complications that may result in readmission.

Key Findings

  • Following isolated CABG, 41% of those who were readmitted experienced a complication, and of those who were not readmitted, 30% experienced a complication.
  • Post-operative atrial fibrillation, prolonged ventilation, and post-operative renal failure are the top three most prevalent single complications that drive readmissions.
  • 30-day readmissions were over two times higher when patients experienced post-operative dialysis, prolonged ventilation, and two or more complications at once.
  • Similar patterns of readmission were observed between race, sex, and payer type categories. However, these patterns differ by age, particularly among those younger than 40 years old.

Additional Information

Topic: Healthcare Utilization
Temporal Coverage: 2018 – 2019
Spatial/Geographic Coverage: Statewide
Geographic Granularity: Location Point
Frequency: Annually
Source Link: Coronary Artery Bypass Graft Reports
Citation: Department of Health Care Access and Information: California Hospital Performance Ratings for Coronary Artery Bypass Graft (CABG) Surgery Data