Continuous subcutaneous insulin infusion versus multiple daily insulin injections in type 1 diabetes: a meta-analysis
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- Monami, M., Lamanna, C., Marchionni, N. et al. Acta Diabetol (2010) 47(Suppl 1): 77. doi:10.1007/s00592-009-0132-5
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Continuous subcutaneous insulin infusion (CSII) is considered an option for type 1 diabetic patients unsatisfactorily controlled with multiple daily injections (MDI). Short-acting analogs are superior to regular human insulin in CSII. This meta-analysis is aimed at assessing the advantages of short-acting analog-based CSII over MDI in type 1 diabetes. Randomized clinical trials (RCTs) comparing CSII (with analogs) and MDI for at least 12 weeks in type 1 diabetic patients were retrieved, assessing between-group differences in HbA1c and incidence of hypoglycemia. A total of 11 RCTs was included in the analysis. CSII was associated with a significant improvement of HbA1c in comparison with MDI (standardized difference in mean: −0.3 [−0.4;−0.1]%; P < 0.001). No significant difference was observed in the rate of severe hypoglycemic episodes. The reduction of HbA1c with CSII was evident in trials enrolling patients with mean age greater than 10 years, but not in younger children. Available data justify the use of CSII for basal-bolus insulin therapy in type 1 diabetic patients unsatisfactorily controlled with MDI.