4. Discussion
PONV, Pain, pain
LEFT VENTRICULAR FAILURE, SECONDARY, GROUP B, COMPLICATIONS
In the present study, there were no difference in the QoR-40K scores at 24 h after extubation according to the method of anesthesia administered to patients undergoing OPCAB surgery, which was the primary outcome. In addition, there were no significant differences between the two groups in terms of the QoR-40K score at 48 h after extubation and with respect to any of the five dimensions of the QoR-40K at 24 or 48 h after extubation.Patient satisfaction after surgery is not only related to the absence of post-operative complications or the maintenance of stable vital signs but also to functional recovery, such as subjective symptoms, psychological satisfaction, and physical independence. Therefore, a multifaceted approach is required [Several clinical studies showed differing results regarding the quality of recovery according to the method of anesthesia administered for various surgeries. In endoscopic sinus surgery, the QoR-40 score at 6 h after surgery was significantly higher in a total intravenous anesthesia (using propofol) group compared with a desflurane group. In thyroid surgery, total intravenous anesthesia using propofol improved the overall recovery quality score by reducing PONV [In this study, there was no difference in the QoR-40K scores between the two groups. In previous studies comparing QoR-40 scores between patients treated with general anesthesia using total anesthesia and inhalational anesthesia, the dimensions showing group differences were physical comfort, including PONV, and physical independence [Pain is an important factor in patient satisfaction after surgery. In a previous study, preoperative administration of pregabalin to patients undergoing OPCAB surgery reduced the postoperative analgesic dose and pain score, which improved recovery scores [There were no differences between the two groups regarding the secondary outcomes of this study, i.e., the MAP during and after surgery, the dose of sufentanil administered during surgery, the use of inotropics, the time to extubation after surgery, the length of stay in the ICU, or the length of stay in hospital. There were also no differences between the two groups regarding the rate of conversion to on-pump during surgery or ECMO after surgery. This study had several limitations. First, objective laboratory data such as myocardial enzyme levels could not be collected; thus, differences between the two groups could not be determined. Second, the study was conducted at a single institution and predominantly incorporated males (Group B, 89.6% males; Group T, 83.0% males). Therefore, it is difficult to generalize the results of this study. Finally, as we included patients with left ventricular function (ejection fraction) ≥ 30%, we could not confirm the results in high-risk patients with severe left ventricular failure.