Statins decrease adverse outcomes in coronary artery bypass for extensive coronary artery disease as well as left...

Area of Science:

• Cardiovascular Surgery
• Pharmacology
• Clinical Medicine

Background:

• Coronary artery bypass grafting (CABG) is a common procedure for extensive coronary artery disease and left main coronary stenosis (LMS).
• The role of statins, particularly their timing (preoperative vs. postoperative), in optimizing CABG outcomes requires further elucidation.

Purpose of the Study:

• To evaluate the impact of preoperative and postoperative statin therapy on perioperative and long-term outcomes in patients undergoing CABG for extensive coronary artery disease and LMS.
• To identify independent risk factors and protective factors associated with perioperative death and late cardiac events after CABG.

Main Methods:

• Retrospective analysis of 626 patients undergoing CABG between 1998 and 2008.
• Classification into preoperative statin therapy (Group A) and no statin therapy (Group B) groups.
• Propensity score matching was used to create comparable groups (267 pairs) for analysis.

Main Results:

• Group A (preoperative statins) showed lower incidence of in-hospital death, atrial fibrillation/flutter, and disabling stroke compared to Group B.
• Actuarial freedom from late events at 5 years was significantly higher in the postoperative statin therapy group (98.75%) versus no postoperative statin therapy (88.33%).
• Preoperative statins were identified as a protective factor against perioperative death, while postoperative statins protected against late cardiac events.

Conclusions:

• Preoperative statin therapy offers significant protective benefits during the perioperative period for CABG patients.
• Postoperative statin administration is crucial for reducing the risk of late cardiac events, improving long-term prognosis after CABG.