THE INSULIN PUMP THERAPY IN TYPE 1 DIABETES: THE IMPORTANCE OF GLUCOSE VARIABILITY

  • Jovan Jozić Faculty of Medicine, University of Belgrade
  • Milan Bjelica University of Belgrade, School of Electrical Engineering
  • Katarina S Lalić Clinic for Endocrinology, Diabetes and Metabolic Diseases, Clinical Center of Serbia, Faculty of Medicine, University of Belgrade

Abstract


Introduction: The continuous subcutaneous insulin infusion regimen proved its effectiveness over multiple daily insulin doses. Although HbA1c has been brought to an optimal range, glucose variability remains one of the main challenges of this method.
Aim: The aim of this study was to investigate control of glucose variability in patients switched from MDII to the CSII therapeutic method.
Material and methods: This study is a retrograde analysis of data from the electronic database and files of 65 patients who were treated at the Clinic for Endocrinology, Diabetes and Metabolic Diseases, Clinical Center of Serbia. Data of HbA1c levels were analyzed, frequency of hypoglycemia on a weekly basis and daily glycemic profile, which determined parameters of glucose variability.
Results: The HbA1c value was lower after than before the insulin pump (p < 0.01). Individual glycemic values from the daily profiles, mean, SD, CV and MAGE of all glycemic profiles, were lower after than before insulin pump therapy (p < 0.05). The correlation was observed between HbA1c prior to the pump and the SD and MAGE prior to the pump (p < 0.01); HbA1c three months after the pump and SD and MAGE prior to the pump (p < 0.05); HbA1c six months after the pump and MAGE prior to the pump (p < 0.05); SD three months after the pump (p < 0.01), SD six months after the pump (p < 0.05) and CV three months after the pump (p < 0.01).
Conclusion: The therapeutic method of continuous subcutaneous insulin infusion regulates the level of HbA1, reduces the values of all glucose variability parameters and reduces the frequency of hypoglycemia compared to multiple daily insulin injections.

Keywords: glucose variability, insulin pump, hypoglycemia

 

References

Hasanbegovic S, Obarcanin E, Hasanbegovic E, Begic N. Impact of Insulin Delivery Method on Hypoglycemia Incidence in Pediatric Type 1 Diabetes Mellitus Patients. Med Arch. 2017 Dec; 71(6): 391-395.

Jan Š, Jan Š, Jr JŠ, Prázný M. Glucose variability , HbA1c and microvascular complications. Rev Endocr Metab Disord. 2016 Mar; 17(1):103-110.

Holman RR, Krähenbühl S, Cull CA et al. Glycemic control and macrovascular disease in types 1 and 2 diabetes mellitus: Meta-analysis of randomized trials. Am Heart 2006 Jul; 152(1):27–38.

Beck RW, Bergenstal RM, Close KL, Li Z et al. Validation of Time in Range as an Outcome Measure for Diabetes Clinical Trials. Diabetes Care 2019 Mar; 42(3):400-405.

Lye WK, Ratnasingam J, Tong A et al. Beyond HbA1c : Comparing Glycemic Variability and Glycemic Indices in Predicting Hypoglycemia. Diab. Tech. Terap 2018 May; 20(5):1-10.

Suh S, Kim JH. Glycemic variability: How do we measure it and why is it important? Diabetes Metab J. 2015 Aug; 39(4):273–282.

Le Floch JP, Kessler L. Glucose Variability: Comparison of Different Indices During Continuous Glucose Monitoring in Diabetic Patients. J Diabetes Sci Technol. 2016 Jun; 10(4):885–891.

Cryer P, Davis S, Shamoon H. Hypoglycemia in Diabetes. Diabetes Care 2003 Jun; 26(6): 1902-1912.

Kovatchev B, Cobelli C. Glucose Variability: Timing , Risk Analysis and Relationship to Hypoglycemia in Diabetes. Diabetes Care 2016 Apr; 39(9):502–510.

Inzucchi S, Umpierrez G, DiGenio A, Zhou R. How well do glucose variability measures predict patient glycaemic outcomes during treatment intensification in type 2 diabetes? Diabetes Res Clin Pract. 2015 Nov; 110(2):234–240.

Sulli N, Shashaj B. Continuous subcutaneous insulin infusion in children and adolescents with diabetes mellitus: Decreased HbA1c with low risk of hypoglycemia. J Pediatr Endocrinol Metab. 2003 Mar; 16(3):393–399.

Monnier L, Colette C, Dejager S, Owens DR. Near normal HbA1c with stable glucose homeostasis: the ultimate target/aim of diabetes therapy. Rev Endocr Metab Disord. 2016 Mar; 17(1):91–101.

Service FJ. The. Glucose Variability. J Diabetes. 2013 May; 62(5):1398–1404.

Frontoni S, Di Bartolo P, Avogaro A, Bosi E, Paolisso G. Glucose variability: An emerging target for the treatment of diabetes mellitus. Diabetes Res Clin Pract. 2103 Nov; 102(2):86–95.

Siegelaar SE, Holleman F, Hoekstra JBL, Devries JH. Glucose Variability; Does It Matter? Endocrine Rev. 2010 Apr; 31(2):171–82.

Bolli M, Kerr D, Thomas R et al. Comparison of a Multiple Daily Insulin Injection Regimen (Basal Once-Daily Glargine Plus Mealtime Lispro) and continuous subcutaneous insulin infusion (Lispro) in type I diabetes: a randomised open parallel multicenter study. Diabetes Care 2009 Jul; 32(7):1170-1176.

Zabeen B, Craig ME, Virk SA et al. Insulin Pump Therapy Is Associated with Lower Rates of Retinopathy and Peripheral Nerve Abnormality. PLoS One. 2016 Apr; 11(4):1–10.

Kilpatrick ES, Rigby AS, Atkin SL. The Effect of Glucose Variability on the Risk of Microvascular Complications in Type 1 Diabetes. Diabetes Care 2006 Jul; 29(7):1486-1490.

Published
2019/12/31
Section
Original Scientific Paper