Randomized Controlled Trial

Vasopressors and intestinal mucosal perfusion after cardiac surgery: Norepinephrine vs. phenylephrine.

Crit. Care Med. 2006 Mar 1;34(3):722-9.
Comparative Study

Norepinephrine and intestinal mucosal perfusion in vasodilatory shock after cardiac surgery.

Shock. 2007 Nov 1;28(5):536-43.
Review

Optimal perfusion during cardiopulmonary bypass: an evidence-based approach.

Anesth. Analg. 2009 May 1;108(5):1394-417.