Outcome of patients after coronary artery bypass grafting in cardiogenic shock.

PURPOSE: Coronary artery bypass graft (CABG) surgery in patients with cardiogenic shock (CS) is a rare and very high-risk procedure carrying high mortality. In this study we reviewed hospital outcomes and 1-year survivals in these high-risk patients.

MATERIALS AND

METHODS

During a 4-year period (May 2001 to April 2005), 412 patients were operated on for CABG by a single surgeon, and 13 (3.1%) of them were in CS at the time of procedure.

RESULTS

The 30-day mortality of patients who underwent CABG during CS was 16%, and mean age was 57+/-10 years. A total of 77% were male, 77% were hypertensive, 38% were diabetic, and 31% had renal impairment. Myocardial infarction (MI) affected 62% within 48 h of surgery. Moderate to poor left ventricular function was found in 92%. Twenty-three percent had a preoperative intra-aortic balloon pump. Postinfract ventricular septal defect was present in 16%, and catheter-related problems were present in 23% of patients. After 1 year, all patients (11) were alive, and 85% of them were in New York Heart Association (NYHA) classes I to II.

CONCLUSION

CABG in CS produces significant 1-year survival benefits and improvements in functional class. Therefore, early surgical intervention is suggested where percutaneous coronary intervention is not possible or contraindicated for anatomical reasons.