Cited by 169Diabetes Management and ResearchDiabetes and associated disordersDiabetes Management and Education

Prevention of Nocturnal Hypoglycemia Using Predictive Alarm Algorithms and Insulin Pump Suspension

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Buckingham, Bruce, Chase, H. Peter, Dassau, Eyal, Cobry, Erin, Clinton, Paula, Gage, Victoria, Caswell, Kimberly, Wilkinson, John +4 more·2010·Diabetes Care

Abstract

OBJECTIVE: The aim of this study was to develop a partial closed-loop system to safely prevent nocturnal hypoglycemia by suspending insulin delivery when hypoglycemia is predicted in type 1 diabetes. RESEARCH DESIGN AND METHODS: Forty subjects with type 1 diabetes (age range 12–39 years) were studied overnight in the hospital. For the first 14 subjects, hypoglycemia (<60 mg/dl) was induced by gradually increasing the basal insulin infusion rate (without the use of pump shutoff algorithms). During the subsequent 26 patient studies, pump shutoff occurred when either three of five (n = 10) or two of five (n = 16) algorithms predicted hypoglycemia based on the glucose levels measured with the FreeStyle Navigator (Abbott Diabetes Care). RESULTS: The standardized protocol induced hypoglycemia on 13 (93%) of the 14 nights. With use of a voting scheme that required three algorithms to trigger insulin pump suspension, nocturnal hypoglycemia was prevented during 6 (60%) of 10 nights. When the voting scheme was changed to require only two algorithms to predict hypoglycemia to trigger pump suspension, hypoglycemia was prevented during 12 (75%) of 16 nights. In the latter study, there were 25 predictions of hypoglycemia because some subjects had multiple hypoglycemic events during a night, and hypoglycemia was prevented for 84% of these events. CONCLUSIONS: Using algorithms to shut off the insulin pump when hypoglycemia is predicted, it is possible to prevent hypoglycemia on 75% of nights (84% of events) when it would otherwise be predicted to occur.

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  • When comparing the safety and efficacy of overnight closed-loop delivery of insulin with conventional insulin-pump therapy in adults with type 1 diabetes, closed-loop delivery improved overnight control of glycaemia and reduced the risk of nocturnal hypoglycaemia.

    “when comparing the safety and efficacy of overnight closed-loop delivery of insulin with conventional insulin-pump therapy in adults with type 1 diabetes, closed-loop delivery improved overnight control of glycaemia and reduced the risk of nocturnal hypoglycaemia.98,99”

    From Type 1 diabetes (2014) · cites this paper as [99]

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Authors
Buckingham, B., Chase, H. P., Dassau, E., Cobry, E., Clinton, P., Gage, V., Caswell, K., Wilkinson, J., Cameron, F., Lee, H., Bequette, B. W., & Doyle, F. J.
Affiliations
  • Stanford Medicine (US)
  • University of Colorado Anschutz (US)
  • University of California, Santa Barbara (US)
  • Stanford University (US)
  • Rensselaer Polytechnic Institute (US)
Corresponding author
Chase, H. Peter
Venue
Diabetes Care
Published
2010-03-03
Volume
33
Issue
5
Pages
1013-1017
ISSN
  • 0149-5992 (ISSN-L)
  • 1935-5548
OpenAlex
W1986471579
Cited by
169
References
29
Citations by year
2025: 3 · 2024: 3 · 2023: 2 · 2022: 4 · 2021: 4 · 2020: 8 · 2019: 10 · 2018: 13 · 2017: 13 · 2016: 14 · 2015: 11 · 2014: 16 · 2013: 19 · 2012: 28
FWCI
16.22
Type
journal article
Language
en
Open access
Locations
  • Diabetes Care (publishedVersion, cc-by-nc-nd)
  • Europe PMC (PubMed Central) (publishedVersion, cc-by-nc-nd)
  • PubMed Central (publishedVersion, cc-by-nc-nd)
  • PubMed (publishedVersion)
Funders
  • National Institute of Diabetes and Digestive and Kidney Diseases (R01DK085628)
  • National Center for Research Resources (5M01 RR00069, RR 000051, M-01 RR 00070, M01RR000051, M01RR000070, M01RR000069)
Topics
  • Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Diabetes Management and Research
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Diabetes and associated disorders
  • Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Diabetes Management and Education
Keywords
nocturnal hypoglycemia, type 1 diabetes, continuous glucose monitoring, hypoglycemia prevention
MeSH terms
Adolescent, Adult, Algorithms, Blood Glucose, Child, Circadian Rhythm, Diabetes Mellitus, Type 1, Humans, Hypoglycemia, Hypoglycemic Agents, Insulin, Insulin Infusion Systems, Ketones, Predictive Value of Tests, Young Adult, Clinical Alarms

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