AWARENESS DURING CORONARY ARTERY BYPASS GRAFTING SURGERY

Abstract

Objectives: To determine the frequency of awareness in patients undergoing coronary artery bypass grafting (CABG) with cardiopulmonary bypass (CPB).
Design: Cross-sectional Survey
Place of Study: Armed Forces Institute of Cardiology, Rawalpindi – Pakistan
Methods: A total of 100 patients (both males and females) of age > 18 years, undergoing elective CABG, were interviewed 24-72 hours after anesthesia using a modified Brice questionnaire. Patient’s anesthesia record was consulted and the drugs and doses used at induction and maintenance of Anesthesia at different stages of the surgery were noted down.
Results: Overall frequency of awareness was found to be 5%. It was found to be less in patients who received propofol infusion during CPB compared to the patients who did not.
Conclusion: Regular use of sedation with propofol infusion during CPB can reduce the frequency of awareness. Bispectral index (BIS) monitoring can prove to be a helpful monitor of the depth of anesthesia during CPB.