Impact of CArdiopulmonary Bypass Flow on Renal Blood Flow, Function and OXygenation

Summary

Cardiac surgery with cardiopulmonary bypass (CPB), especially when oxygen delivery is low, is associated with acute kidney injury. Unpublished data shows that renal oxygen delivery is compromised during CPB due to low hematocrit and redistribution of blood flow away from the kidneys. We wish to study if increased CPB flow can improve renal oxygenation. Patients who develop cardiac failure after weaning from CPB will be treated as per our departments routine with the inotropic agent milrinone, and measurements will be made before and after treatment.

Timeline

Start

2016-01

Primary completion

2017-06

Completion

2017-08

Publications

• Lannemyr L, Bragadottir G, Redfors B, Ricksten SE. Effects of milrinone on renal perfusion, filtration and oxygenation in patients with acute heart failure and low cardiac output early after cardiac surgery. J Crit Care. 2020 Jun;57:225-230. doi: 10.1016/j.jcrc.2019.12.022. Epub 2020 Jan 6.

Drugs

Indications