Evaluation of metabolic control using a continuous subcutaneous glucose monitoring system in patients with type 1 diabetes mellitus who achieved insulin independence after islet cell transplantation
2005
This study evaluated the Medtronic MiniMed Continuous Glucose Monitoring System (CGMS) in patients with type 1 diabetes mellitus who underwent successful islet cell transplantation (ICT). The results are compared to standardized self-monitoring (SMBG) of hyperglycemia and mean amplitude of glycemic excursions (MAGE). We studied 19 patients (mean age 40.0 ± 6.7 years) in three groups: six patients post-ICT, seven patients awaiting ICT, and six normal volunteers (controls). Continuous glucose monitoring post-ICT showed remarkable glucose stability compared with patients awaiting ICT. The CGMS group showed modestly higher glucoses (mean 111.5 mg/dl) compared with controls (88 mg/dl). Postprandial glucoses in ICT recipients rarely exceeded 180 mg/dl and were similar to controls. There was no difference in asymptomatic hypoglycemia between control and post-ICT groups. However, a higher incidence of hypoglycemia was observed in patients awaiting ICT. HbA1c and MAGE pre- and post-ICT were 8.3 ± 0.9% and 6 ± 0.3%...
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