Glucose monitoring by means of an intravenous microdialysis catheter technique.
BACKGROUND
Patients with acute coronary syndrome (ACS) and hyperglycemia are at an increased mortality risk. A rapidly obtained optimized glycemic control without inducing hypoglycemia is important. We evaluated the accuracy of a microdialysis catheter (CMA 64 IView, CMA Microdialysis AB, Solna, Sweden) to monitor glucose levels in patients in the coronary care unit (CCU).


METHODS
Fourteen patients admitted to the CCU with ACS (n = 11) or heart failure (n = 3) had a venous microdialysis catheter applied for 3 days. Glucose levels were measured simultaneously in plasma and microdialysis fluid at eight time points for 1 h each day.


RESULTS
The overall congruence between the two measurements of blood glucose was acceptable except in four patients in whom the microdialysis measurements were too low. No obvious relationship between site of the catheter, body composition, blood pressure, diagnosis, or medical treatment and discrepant values was detected.


CONCLUSIONS
These initial experiences are promising and motivate further research to improve the microdialysis technique. In future studies longer periods of recordings should be included to disclose technical problems.
Hage
Camilla
C
Cardiology Unit, Department of Medicine, and Anesthesiology & Intensive Care Medicine Unit, CLINTEC, Karolinska Institutet, Stockholm, Sweden. Camilla.Hage@karolinska.se
Mellbin
Linda
L
Rydén
Lars
L
Wernerman
Jan
J
D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D001786:Blood Glucose / Q000032:analysis*; D002406:Catheterization, Peripheral; D003325:Coronary Care Units / Q000379:methods; D006801:Humans; D008297:Male; D017551:Microdialysis; D008875:Middle Aged
D001786:Blood Glucose