Thoracic epidural anesthesia improves early outcomes in patients undergoing off-pump coronary artery bypass surgery: a prospective, randomized, controlled trial.
Caputo M, Alwair H, Rogers CA, Pike K, Cohen A, Monk C, Tomkins S, Ryder I, Moscariello C, Lucchetti V, Angelini GD. Thoracic epidural anesthesia improves early outcomes in patients undergoing off-pump coronary artery bypass surgery: a prospective, randomized, controlled trial. Anesthesiology. 2011 Feb; 114(2):380-90.