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Insulin pump therapy with automated insulin suspension in response to hypoglycemia: reduction in nocturnal hypoglycemia in those at greatest risk.

ABSTRACT: To evaluate a sensor-augmented insulin pump with a low glucose suspend (LGS) feature that automatically suspends basal insulin delivery for up to 2 h in response to sensor-detected hypoglycemia.The LGS feature of the Paradigm Veo insulin pump (Medtronic, Inc., Northridge, CA) was tested for 3 weeks in 31 adults with type 1 diabetes.There were 166 episodes of LGS: 66% of daytime LGS episodes were terminated within 10 min, and 20 episodes lasted the maximum 2 h. LGS use was associated with reduced nocturnal duration ?2.2 mmol/L in those in the highest quartile of nocturnal hypoglycemia at baseline (median 46.2 vs. 1.8 min/day, P = 0.02 [LGS-OFF vs. LGS-ON]). Median sensor glucose was 3.9 mmol/L after 2-h LGS and 8.2 mmol/L at 2 h after basal restart.Use of an insulin pump with LGS was associated with reduced nocturnal hypoglycemia in those at greatest risk and was well accepted by patients.

SUBMITTER: Choudhary P

PROVIDER: S-EPMC3161284 | biostudies-literature | 2011 Sep

REPOSITORIES: biostudies-literature

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Insulin pump therapy with automated insulin suspension in response to hypoglycemia: reduction in nocturnal hypoglycemia in those at greatest risk.

Choudhary Pratik P Shin John J Wang Yongyin Y Evans Mark L ML Hammond Peter J PJ Kerr David D Shaw James A M JA Pickup John C JC Amiel Stephanie A SA

Diabetes care 20110901 9

<h4>Objective</h4>To evaluate a sensor-augmented insulin pump with a low glucose suspend (LGS) feature that automatically suspends basal insulin delivery for up to 2 h in response to sensor-detected hypoglycemia.<h4>Research design and methods</h4>The LGS feature of the Paradigm Veo insulin pump (Medtronic, Inc., Northridge, CA) was tested for 3 weeks in 31 adults with type 1 diabetes.<h4>Results</h4>There were 166 episodes of LGS: 66% of daytime LGS episodes were terminated within 10 min, and 2 ...[more]

PMID: 21868778

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Project description:Insulin pump therapy may improve metabolic control in young patients with type 1 diabetes, but the association with short-term diabetes complications is unclear.To determine whether rates of severe hypoglycemia and diabetic ketoacidosis are lower with insulin pump therapy compared with insulin injection therapy in children, adolescents, and young adults with type 1 diabetes.Population-based cohort study conducted between January 2011 and December 2015 in 446 diabetes centers participating in the Diabetes Prospective Follow-up Initiative in Germany, Austria, and Luxembourg. Patients with type 1 diabetes younger than 20 years and diabetes duration of more than 1 year were identified. Propensity score matching and inverse probability of treatment weighting analyses with age, sex, diabetes duration, migration background (defined as place of birth outside of Germany or Austria), body mass index, and glycated hemoglobin as covariates were used to account for relevant confounders.Type 1 diabetes treated with insulin pump therapy or with multiple (?4) daily insulin injections.Primary outcomes were rates of severe hypoglycemia and diabetic ketoacidosis during the most recent treatment year. Secondary outcomes included glycated hemoglobin levels, insulin dose, and body mass index.Of 30?579 patients (mean age, 14.1 years [SD, 4.0]; 53% male), 14?119 used pump therapy (median duration, 3.7 years) and 16?460 used insulin injections (median duration, 3.6 years). Patients using pump therapy (n?=?9814) were matched with 9814 patients using injection therapy. Pump therapy, compared with injection therapy, was associated with lower rates of severe hypoglycemia (9.55 vs 13.97 per 100 patient-years; difference, -4.42 [95% CI, -6.15 to -2.69]; P?<?.001) and diabetic ketoacidosis (3.64 vs 4.26 per 100 patient-years; difference, -0.63 [95% CI, -1.24 to -0.02]; P?=?.04). Glycated hemoglobin levels were lower with pump therapy than with injection therapy (8.04% vs 8.22%; difference, -0.18 [95% CI, -0.22 to -0.13], P?<?.001). Total daily insulin doses were lower for pump therapy compared with injection therapy (0.84 U/kg vs 0.98 U/kg; difference, -0.14 [-0.15 to -0.13], P?<?.001). There was no significant difference in body mass index between both treatment regimens. Similar results were obtained after propensity score inverse probability of treatment weighting analyses in the entire cohort.Among young patients with type 1 diabetes, insulin pump therapy, compared with insulin injection therapy, was associated with lower risks of severe hypoglycemia and diabetic ketoacidosis and with better glycemic control during the most recent year of therapy. These findings provide evidence for improved clinical outcomes associated with insulin pump therapy compared with injection therapy in children, adolescents, and young adults with type 1 diabetes.

Project description:BACKGROUND:This prospective single-center study recruited insulin-resistant continuous subcutaneous insulin infusion (CSII) therapy-naive patients with type 2 diabetes (T2D) using insulin analog-based multiple daily injections (MDI) therapy and metformin. METHODS:A total of 23 individuals with T2D (70% male), aged a mean?±?standard deviation 57.2?±?8.03 years, with body mass index of 36.2?±?7.02?kg/m2, diabetes duration of 13.3?±?4.64 years, and HbA1c of 10.0%?±?1.05% were randomly assigned to a CSII arm or an MDI continuation arm to explore glucose control, weight loss, total daily insulin dose (TDD), and insulin resistance. Insulin dosing was optimized over a 2-month run-in period. RESULTS:At 6 months, patients assigned to the CSII arm achieved a significant mean HbA1c reduction of -0.9% (95% confidence interval [CI]?=?-1.6, -0.1), while reducing their TDD by -29.8?±?28.41?U/day (33% of baseline [92.1?±?20.35?U/day]) and achieving body mass (BM) reduction of -0.8?±?5.61?kg (0.98% of baseline [104.8?±?16.15?kg]). MDI patients demonstrated a nonsignificant HbA1c reduction of -0.3% (95% CI?=?-0.8, 0.1) with a TDD reduction of 5% from baseline (99.0?±?25.25?U/day to 94.3?±?21.25?U/day), and a BM reduction of -1.0?±?2.03?kg (0.99% of baseline [108.9?±?20.55?kg]). After 6 months, the MDI arm crossed over to CSII therapy. At 12 months, patients continuing CSII demonstrated an additional mean 0.7% HbA1c reduction with 54.6% achieving HbA1c<8%. The final TDD reduction was -9.7?U/day in comparison to baseline; BM increased by 1.1?±?6.5?kg from baseline. The MDI patients that crossed to CSII showed an HbA1c reduction of -0.5%?±?1.04%, HbA1c response rate of 27.3%, a TDD reduction of -17.4?±?21.06?U/day, and a BM reduction of -0.3?±?3.39?kg. Diabetic ketoacidosis or severe hypoglycemia did not occur in either arm. CONCLUSION:CSII therapy safely and significantly improved metabolic control with less insulin usage, with no sustainable reduction of BM, blood pressure, and lipid profile, in insulin-resistant T2D patients. Treatment adherence and satisfaction in these patients were excellent.

Dataset Information

Insulin pump therapy with automated insulin suspension in response to hypoglycemia: reduction in nocturnal hypoglycemia in those at greatest risk.

Publications

Insulin pump therapy with automated insulin suspension in response to hypoglycemia: reduction in nocturnal hypoglycemia in those at greatest risk.

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