Randomized Controlled Trial

Isoflurane anesthesia and myocardial ischemia: comparative risk versus sufentanil anesthesia in patients undergoing coronary artery bypass graft surgery. The SPI (Study of Perioperative Ischemia) Research Group.

Anesthesiology. 1991 May 1;74(5):838-47.
Randomized Controlled Trial

A randomized double-blind comparison of fentanyl- and sufentanil-oxygen anesthesia for abdominal aortic surgery.

J Cardiothorac Anesth. 1990 Apr 1;4(2):168-76.
Randomized Controlled Trial

Comparison of alfentanil, fentanyl and sufentanil for total intravenous anaesthesia with propofol in patients undergoing coronary artery bypass surgery.

Br J Anaesth. 2000 Oct 1;85(4):533-40.