A randomised controlled trial investigating the effects of dopexamine on gastrointestinal function and organ dysfunction in the critically ill

Abstract

Objective. To determine whether an infusion of dopexamine for up to 7 days has an effect on gastrointestinal (GIT) absorption and permeability, renal function or organ dysfunction in the critically ill.

Design and setting. Prospective, randomised controlled clinical trial in two general adult intensive care units.

Patients. 102 critically ill adult patients predicted to require organ support for at least 4 days.

Interventions. After resuscitation patients were randomly assigned to receive an infusion of up to 2g/kg per minute of dopexamine or control.

Measurements and results. GIT absorption and permeability were measured using the ratio of absorbed rhamnose to 3-O-methyl-D-glucose and the ratio of lactulose to rhamnose on days 1, 4 and 7. Creatinine clearance was measured concurrently. Daily Sequential Organ Failure Assessment scores were calculated. Fifty-two patients received dopexamine. No significant difference between the two groups emerged on any of the measured parameters during the study period.

Conclusions. No benefit was seen from a prolonged infusion of dopexamine in this group of critically ill patients in terms of GIT absorption and permeability, creatinine clearance or organ dysfunction.