Planned Operating-Room Extubation After Cardiac Surgery

The goal of this clinical trial is to learn whether removing the breathing tube in the operating room after cardiac surgery helps adults recover faster than removing the breathing tube later in the intensive care unit (ICU), without increasing the risk of complications. The main questions it aims to answer are: * Does planned operating-room extubation increase the amount of time patients are alive and free from breathing-machine support and significant blood-pressure or heart-support medications during the first 72 hours after surgery? * Is planned operating-room extubation as safe as standard early ICU extubation with respect to important complications such as death, stroke, reoperation for bleeding, breathing failure requiring additional support or reintubation, and unplanned ICU readmission? Researchers will compare planned operating-room extubation with standard enhanced-recovery care in which patients remain intubated when leaving the operating room and are extubated in the ICU, with a target of within 6 hours after surgery when clinically appropriate. Participants will: * Provide informed consent before surgery * Be randomly assigned to one of the two extubation strategies * Receive otherwise standard cardiac surgical, anesthesia, and ICU care * Have routine clinical information collected during the first 72 hours after surgery and through hospital discharge * Complete a short questionnaire about their recovery on postoperative day 2 * Have their health status followed to 30 days after surgery If a participant assigned to operating-room extubation develops a clinical concern that makes immediate extubation unsafe, the treating team may keep the breathing tube in place and transfer the participant to the ICU while continuing standard care.