Figure 1. Recovery of mini-mental state (MMS) score post-extubation between early extubation and conventional extubation CABG patients. Adapted from Cheng DCH, Karski J, Peniston C, Asokumar B, Raveendran G, Carroll J, Nierenberg H, Roger S, Mickle D, Tong J, Zelovitsky J, David T, Sandler A: Morbidity outcome in early versus conventional tracheal extubation after coronary artery bypass grafting: A prospective randomized controlled trial. J Thorac Cardiovasc Surg 1996; 112:755–64.