Reoperation for bleeding in cardiac surgery

Area of Science:

• Cardiovascular Surgery
• Surgical Outcomes Research
• Patient Safety

Background:

• Excessive postoperative bleeding necessitates reoperation in 5-9% of cardiac surgery patients.
• Reoperation for bleeding is associated with a threefold increase in mortality.
• Identifying predictive risk factors for reoperation is essential to improve patient outcomes.

Purpose of the Study:

• To identify significant risk factors predicting the need for reoperation due to excessive postoperative bleeding after cardiac surgery.
• To analyze the morbidity and mortality associated with reoperation for bleeding.

Main Methods:

• Analysis of 1452 consecutive patients undergoing cardiac surgery with extracorporeal circulation (ECC) from November 2005 to December 2008.
• Statistical analysis to identify risk factors for reoperation.
• Propensity-matched case-note review to assess outcomes of reoperation for bleeding.

Main Results:

• 101 patients (7.0%) required surgical re-exploration for excessive bleeding.
• Significant risk factors for reoperation included low ejection fraction, high EuroSCORE, non-isolated CABG procedures, prolonged ECC time, low BMI, diabetes mellitus, and elevated preoperative s-creatinine.
• Reoperated patients exhibited greater postoperative s-creatinine increase and higher mortality.

Conclusions:

• Low ejection fraction, high EuroSCORE, prolonged ECC time, and other factors are significant predictors of reoperation for bleeding after cardiac surgery.
• Reoperation for bleeding is linked to adverse outcomes, including increased mortality and renal dysfunction.
• Timely identification of at-risk patients may facilitate interventions to reduce reoperation rates and improve survival.