The performance of flash glucose monitoring in critically ill patients with diabetes

Abstract

Objective: Frequent glucose monitoring may improve glycaemic control in critically ill patients with diabetes. We aimed to assess the accuracy of a novel subcutaneous flash glucose monitor (FreeStyle Libre [Abbott Diabetes Care]) in these patients. Methods: We applied the FreeStyle Libre sensor to the upper arm of eight patients with diabetes in the intensive care unit and obtained hourly flash glucose measurements. Duplicate recordings were obtained to assess test–retest reliability. The reference glucose level was measured in arterial or capillary blood. We determined numerical accuracy using Bland– Altman methods, the mean absolute relative difference (MARD) and whether the International ..