Diabetes, Vol 31, Issue 3 255-264, Copyright © 1982 by American Diabetes Association
Comparison between continuous subcutaneous insulin infusion and multiple injections of insulin. A one-year prospective study
A Schiffrin and MM Belmonte
Twenty insulin-dependent diabetic patients participated in a 1-yr
prospective randomized cross-over study comparing multiple subcutaneous
injections (MSI) and continuous subcutaneous insulin infusion (CSII)
complemented by home blood glucose monitoring. While 4 patients dropped out
early, 16 patients completed the study. Patients had severe insulin
deficiency documented by absent C-peptide response to glucagon stimulation.
A marked improvement in control was observed when mean blood glucose and
glycosylated hemoglobin A1 were compared with conventional therapy. No
significant differences in the degree of metabolic control achieved, as
measured by mean fasting, preprandial, and postprandial capillary blood
glucose (CBG), M values, glycosylated hemoglobin A1 concentration,
cholesterol and triglyceride levels were seen between MSI and CSII in the
sixteen patients who completed the study. However, individual comparisons
showed that fasting CBG and M-values were lower under CSII than MSI in
seven patients (P less than 0.05). In contrast, two patients exhibited
lower M values under MSI than under CSII (P less than 0.01), while for the
remaining seven patients the results were similar. After completion of the
study, two patients went back to conventional insulin therapy, seven
patients remained on the pump, and seven patients chose to stay on MSI. In
conclusion, on a long-term basis, the two methods can produce comparable
levels of blood glucose and glycosylated hemoglobin in ambulatory
insulin-dependent diabetics.