Chronic continuous intraperitoneal insulin infusion (CIPII) in type I diabetic patients non-satisfactorily responsive to continuous subcutaneous insulin infusion (CSII)

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Abstract
Six unstable C-peptide negative type I diabetic patients who had been previously treated with continuous subcutaneous insulin infusion (CSII) for at least one year without achieving satisfactory metabolic control, were admitted to this study and switched to continuous intraperitoneal insulin infusion (CIPII). The results obtained with the two treatments have been compared from the metabolic and clinical points of view. CIPII produced a decrease in HbA1c (p2 fraction (p<0.01). A mean body weight reduction of 3 kg was observed during CIPII (p<0.01), not related to dietary changes or to a reduction of the daily insulin dose. Twenty-four hour metabolic profiles during CIPII showed lower mean plasma glucose (p<0.001), serum free insulin (p<0.001), blood β-OH-butyrate (p<0.001), and higher serum glycerol (p<0.001) as compared to CSII. It is concluded that CIPII may be of clinical value in the out-patient management of unstable type I diabetic patients, and that metabolic modifications induced by CIPII are not limited to changes in glucose utilization and production, but include changes in triglyceride, cholesterol and lipid metabolism which may have clinical relevance.