Investigators with the goal of optimizing glycemic and blood pressure control saw type 1 diabetic patients weekly. A control group received 3-4 subcutaneous insulin injections per day; an intravenous insulin pulsed infusion group received, in addition, three one hour infusions in a pulsatile fashion over one eight hour period each week. Patients were followed for 12 months with periodic testing of renal function by repeated blood and urinary analyses; diabetes control by blood testing and diabetes impact measurement score; cardiac and autonomic function by echocardiography, 24 hour electrocardiographic testing; and visual changes with repeated fundus photography. The study hypothesis was that correction of respiratory quotient would correct the defect leading to microvascular complications of diabetes (Type 1).
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Enrollment
71
The intravenous infusion group received three one-hour courses of pulsed intravenous insulin infusion on a single day per week in addition to subcutaneous insulin.
Joslin Diabetes Center
Boston, Massachusetts, United States
Rate of loss of creatinine clearance
Time frame: 18 months
Quality of life assessment
Time frame: 12 to 18 months
Change in cardiac autonomic function
Time frame: 12 to18 months
Change in retinal photos
Time frame: 12 to 18 months
Change in cardiac function
Time frame: 12 to 18 months
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