Awareness during cardiopulmonary bypass.
Recently, numerous studies and reports have been made on awareness under different types of general anesthesia. In our study, 56 patients who underwent coronary artery bypass were grouped into three categories according to the type of anesthesia received. This was done to determine whether the incidence of awareness during cardiopulmonary bypass is related to the anesthetic combinations and techniques. Five out of 56 patients (8.9%) had spontaneous recall of what happened during their operations.