On line continuous monitoring of subcutaneous tissue glucose in men by combining portable glucosensor with microdialysis.

Abstract:

:For the normalisation of blood glucose levels in diabetic patients by feedback controlled insulin delivery, a self-manageable and reliable method for continuous glucose estimation is still not available. By combining a commercially available needle type dialysis probe (molecular cutoff 20,000 Da) with a sensitive glucose sensor, we obtained a device for continuous glucose measurement in dialysate. This device was tested in healthy volunteers during a 75-g oral glucose tolerance test and in Type 2 (non-insulin-dependent) diabetic patients. Venous glucose and subcutaneous sensor signal were followed for 300 min (ten healthy subjects), 21 h (three healthy subjects) or 9 h (seven Type 2 diabetic patients). The recovery of the microdialysis was interindividually different, but after calibration, glucose levels in the dialysate and subcutaneous glucose sensor signal correlated well (r = 0.84-0.95). Under the assumption of a physiologic and technical delay between intravenous and subcutaneous glucose, correlation coefficient between intravenous glucose and subcutaneous sensor signal ranged from 0.60 to 0.93. We conclude that changes in blood glucose could be monitored in the subcutaneous tissue by the microdialysis technique in a continuous on line manner.

journal_name

Diabetologia

journal_title

Diabetologia

authors

Meyerhoff C,Bischof F,Sternberg F,Zier H,Pfeiffer EF

doi

10.1007/BF02221686

subject

Has Abstract

pub_date

1992-11-01 00:00:00

pages

1087-92

issue

11

eissn

0012-186X

issn

1432-0428

journal_volume

35

pub_type

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