Nitroglycerin Infusion During Cardiac Surgery

Summary

Hypothermic cardiopulmonary bypass results in peripheral vasoconstriction and heparin trapping. Hypoperfusion and ischemic-reperfusion injury are associated with systemic inflammatory response, while insufficient and delayed neutralization of heparin by protamine may contribute to more blood loss during rewarming stage. Nitroglycerin infusion, an NO-related vasodilator, is an established and effective treatment for unstable angina, myocardial infarction, congestive heart failure, and perioperative hemodynamic management for cardiac surgery. Therefore, we hypothesize that nitroglycerin infusion during rewarming corrects systemic ischemic stress and facilitates heparin neutralization in cardiac surgery.

Timeline

Start

2013-07-08

Primary completion

2017-06-08

Completion

2017-06-08

Publications

• Background Piquette D, Deschamps A, Belisle S, Pellerin M, Levesque S, Tardif JC, Denault AY. Effect of intravenous nitroglycerin on cerebral saturation in high-risk cardiac surgery. Can J Anaesth. 2007 Sep;54(9):718-27. doi: 10.1007/BF03026868.
• Background Masoumi G, Pour EH, Sadeghpour A, Ziayeefard M, Alavi M, Anbardan SJ, Shirani S. Effect of different dosages of nitroglycerin infusion on arterial blood gas tensions in patients undergoing on- pump coronary artery bypass graft surgery. J Res Med Sci. 2012 Feb;17(2):123-7.

Drugs

Indications