 The study compared two different anesthetic techniques used during cardiac surgery. One technique involved using Remefentanil and Propofol supplemented with a target-controlled infusion, TCI, while the other technique involved using Siebelflurain and Sufentanil supplemented with a TCI. Remefentanil and Propofol are both sedatives, but they have different effects on the body. Remefentanil has a stronger analgesic effect, while Propofol has a stronger hypnotic effect. The researchers found that the Remefentanil-Propofol combination resulted in faster recovery from anesthesia when compared to the Siebelflurain-Sufentanil combination. This suggests that the Remefentanil-Propofol combination may be more effective for patients undergoing cardiac surgery. This article was authored by Taeyeon Sung, Donkyu Lee, Jaeyeon Bang, and others.