Risk factors for late extubation after coronary artery bypass grafting

Area of Science:

• Cardiovascular Surgery
• Critical Care Medicine
• Anesthesiology

Background:

• Late extubation after coronary artery bypass grafting (CABG) is a significant complication.
• Identifying independent risk factors is crucial for improving patient outcomes and resource allocation.

Purpose of the Study:

• To determine the independent risk factors associated with late extubation following isolated CABG procedures.

Main Methods:

• Retrospective analysis of preoperative, intraoperative, and postoperative data from 416 patients undergoing isolated CABG.
• Definition of late extubation as extubation occurring more than 8 hours after CABG.
• Application of univariate and logistic regression analyses to identify independent risk factors.

Main Results:

• The incidence of late extubation was 69.23%.
• Independent risk factors identified include older age (OR=4.804), prolonged cardiopulmonary bypass duration (OR=2.426), perioperative intra-aortic balloon pump use (OR=1.451), low preoperative arterial oxygen partial pressure (OR=.204), and low postoperative hemoglobin level (OR=.793).

Conclusions:

• Older age, extended cardiopulmonary bypass time, perioperative intra-aortic balloon pump use, low preoperative oxygen levels, and low postoperative hemoglobin are significant independent risk factors for late extubation post-CABG.
• These findings can inform clinical practice and patient management strategies to reduce the incidence of late extubation.