Changing trends in emergency coronary bypass surgery.

Area of Science:

• Cardiovascular Surgery
• Cardiac Surgery Trends
• High-Risk Patient Management

Background:

• Emergency coronary artery bypass grafting (CABG) serves a high-risk patient group.
• Trends in emergency CABG over two decades were analyzed.
• Understanding these trends is crucial for surgical management.

Purpose of the Study:

• To examine changes in patient demographics and risk factors for emergency CABG.
• To evaluate operative mortality and low cardiac output syndrome incidence.
• To identify predictors of adverse outcomes in emergency CABG.

Main Methods:

• Retrospective database review from 1990-2009.
• Patients divided into two groups: 1990-1999 (n=393) and 2000-2009 (n=184).
• Primary outcomes: operative mortality and low cardiac output syndrome.

Main Results:

• Emergency CABG decreased from 2.7% to 1.7%; comorbidities like hypertension and triple vessel disease increased.
• Operative mortality remained constant at 8.1%.
• Predictors of mortality included hypertension, heart failure, low ejection fraction, and prior surgery; low cardiac output syndrome predictors included age, shock, and earlier decade.

Conclusions:

• Despite evolving risk profiles, emergency CABG mortality is stable but remains high compared to elective procedures.
• Improvements in heart failure management and elderly care may reduce risks.
• Ongoing risk stratification and management are vital for this challenging patient population.