Off-pump surgery: a choice in unstable angina

Area of Science:

• Cardiovascular Surgery
• Cardiac Surgery Outcomes
• Minimally Invasive Cardiac Surgery

Background:

• Unstable angina presents significant risks for patients undergoing coronary artery bypass surgery.
• Off-pump coronary artery bypass (OPCAB) aims to reduce complications associated with cardiopulmonary bypass.
• Assessing OPCAB in unstable angina patients is crucial for treatment guidelines.

Purpose of the Study:

• To evaluate the safety and efficacy of off-pump coronary artery bypass surgery.
• To analyze outcomes in patients with unstable angina undergoing multivessel OPCAB.
• To determine the impact of OPCAB on perioperative complications and mortality.

Main Methods:

• Retrospective analysis of 5,306 patients undergoing multivessel OPCAB from February 1996 to October 2001.
• Focus on a subgroup of 920 patients diagnosed with unstable angina.
• Data collection included ejection fraction, disease severity, interventions, and outcomes.

Main Results:

• Hospital mortality was very low at 0.22% (2/920 patients).
• Perioperative myocardial infarction occurred in 1% of patients.
• Mean hospital stay was 7.8 days, with 92.3% receiving a left internal mammary artery graft.

Conclusions:

• Off-pump coronary artery bypass surgery is a safe and beneficial option for patients with unstable angina.
• The procedure demonstrated low morbidity and mortality, even in patients with reduced ejection fractions and triple-vessel disease.
• Intra-aortic balloon pumping support was effective for managing refractory unstable angina cases.